14Breeding Strategies to Adapt Crops to a Changing Climate
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野生动物现状,保护野生动物意义英语作文全文共3篇示例,供读者参考篇1The Status of Wild Animals and the Importance of Protecting ThemWild animals are a crucial part of our ecosystem, playing a vital role in maintaining the balance of nature. However, the current status of many wild animal species is alarming. Human activities such as deforestation, illegal poaching, and climate change have led to a drastic decline in the population of many species. It is estimated that thousands of species are at risk of extinction if immediate action is not taken to protect them.One of the key reasons behind the decline in wild animal populations is habitat destruction. Deforestation, urbanization, and agriculture have led to the loss of natural habitats for many species, forcing them to compete for food and space. As their habitats shrink, wild animals are more vulnerable to diseases, predators, and other threats, making it difficult for them to survive.Illegal poaching is another major threat to wild animals. Many species, such as elephants, rhinos, and tigers, are hunted for their tusks, horns, and fur, which are in high demand in the black market. Poaching not only puts these species at risk of extinction but also disrupts the delicate balance of ecosystems, leading to a cascading effect on other species.In addition to habitat destruction and poaching, climate change is also endangering wild animals. Rising temperatures, extreme weather events, and changes in precipitation patterns are affecting the migratory patterns, breeding habits, and food sources of many species. As a result, some species are struggling to adapt to these changes, putting their survival at risk.The importance of protecting wild animals cannot be overstated. They provide essential ecosystem services such as pollination, seed dispersal, and pest control, which are crucial for the health of our planet. Wild animals also serve as indicators of the overall health of ecosystems, reflecting the impacts of human activities on the environment.Furthermore, wild animals have intrinsic value and deserve to coexist with humans on this planet. They contribute to the beauty and diversity of the natural world, inspiring awe and wonder in people of all ages. By protecting wild animals, we arealso safeguarding our own future, as our well-being is intricately linked to the health of the planet.There are several ways in which we can protect wild animals. One of the most effective strategies is to preserve their natural habitats through the establishment of protected areas such as national parks, wildlife reserves, and marine protected areas. These designated spaces provide a safe haven for wild animals to thrive without the threat of human activities.Another key approach to protecting wild animals is to combat illegal poaching and wildlife trafficking. This requires increased enforcement of anti-poaching laws, collaboration with local communities, and education campaigns to raise awareness about the importance of preserving wild animals.Additionally, addressing the root causes of habitat destruction, such as deforestation and urbanization, is essential to protecting wild animals. Sustainable land-use practices, reforestation efforts, and promoting coexistence between humans and wildlife are critical in mitigating the impacts of human activities on wild animal populations.In conclusion, the status of wild animals is a matter of grave concern, but it is not too late to take action. By recognizing the importance of protecting wild animals and implementingconservation measures, we can ensure a sustainable future for both wildlife and humans. Together, we can make a difference in preserving the beauty and diversity of the natural world for generations to come. Let us act now before it is too late.篇2The Status of Wildlife and the Importance of Wildlife ConservationWildlife plays a crucial role in maintaining the balance of our ecosystem. However, due to human activities such as habitat destruction, deforestation, pollution, and poaching, many species of wildlife are facing the threat of extinction. The current status of wildlife is alarming, with numerous species being classified as endangered or critically endangered.One of the main reasons for the decline in wildlife populations is habitat loss. Deforestation, urbanization, and agricultural expansion have led to the destruction of natural habitats, forcing many species to migrate or adapt to new environments. This has resulted in a decrease in biodiversity and has disrupted the delicate balance of ecosystems.Another major threat to wildlife is poaching and illegal wildlife trade. Many species, such as elephants, rhinos, and tigers,are hunted for their tusks, horns, and fur, which are highly valued on the black market. As a result, their populations have declined significantly, pushing them closer to extinction.Pollution is also a significant factor contributing to the decline in wildlife populations. Chemical pollutants, plastic waste, and oil spills have affected many ecosystems, contaminating water sources and endangering aquatic life. Pollution not only directly affects wildlife but also disrupts the food chain and can have long-term consequences on entire ecosystems.The decline in wildlife populations has far-reaching consequences for humans as well. Wildlife plays a crucial role in pollination, seed dispersal, and pest control, which are essential for the health of ecosystems and agricultural productivity. Loss of biodiversity can also lead to the spread of diseases and the disruption of important ecological processes.Recognizing the importance of wildlife conservation is essential in protecting our planet's biodiversity and ensuring a sustainable future for all living beings. Conservation efforts such as creating protected areas, enforcing wildlife protection laws, and raising awareness about the importance of biodiversity are crucial in safeguarding wildlife populations.Individuals can also contribute to wildlife conservation by making environmentally conscious choices, supporting wildlife conservation organizations, and advocating for sustainable practices. By working together to protect wildlife and their habitats, we can ensure a harmonious coexistence between humans and wildlife and preserve the beauty and diversity of our natural world for future generations.篇3The Current Situation of Wildlife and the Significance of Wildlife ConservationIntroductionWildlife plays an essential role in maintaining the balance of ecosystems and providing various ecosystem services. However, due to human activities such as deforestation, poaching, habitat destruction, and pollution, many species are facing the risk of extinction. The current situation of wildlife is concerning, and it is crucial to take action to protect them for the benefit of our planet and future generations.The Current Situation of WildlifeThe world's wildlife is facing significant threats, with many species on the brink of extinction. According to the WorldWildlife Fund, the global wildlife population has declined by 60% in the last 40 years due to various human activities. Some of the main threats to wildlife include habitat destruction, climate change, pollution, and poaching.Habitat destruction is one of the leading causes of wildlife population decline. Deforestation, urbanization, and agriculture have resulted in the loss of habitats for many species, leaving them with limited resources for survival. Climate change is also impacting wildlife, with rising temperatures and changing weather patterns affecting their habitats and food sources. Pollution, such as plastic pollution in the oceans, is harming marine wildlife and leading to a decline in populations. Poaching for the illegal wildlife trade is another significant threat, with many species being hunted for their fur, tusks, or body parts.The Significance of Wildlife ConservationWildlife conservation is crucial for maintaining biodiversity, preserving ecosystems, and ensuring the survival of species. Here are some of the key reasons why wildlife conservation is significant:1. Biodiversity ConservationWildlife plays a vital role in maintaining biodiversity, which is essential for the health of ecosystems. A diverse range of species ensures that ecosystems are resilient to environmental changes and can provide various ecosystem services, such as pollination, seed dispersal, and pest control. By conserving wildlife, we can help preserve biodiversity and ensure the stability of ecosystems.2. Ecosystem ServicesWildlife provides a range of ecosystem services that are essential for human well-being. For example, bees and other pollinators play a crucial role in pollinating crops and ensuring food security. Birds and bats help control insect populations, reducing the need for harmful pesticides. By conserving wildlife, we can continue to benefit from these ecosystem services and support sustainable development.3. Economic BenefitsWildlife conservation can also bring economic benefits to local communities and countries. Wildlife tourism, including safaris and ecotourism, can generate revenue and create employment opportunities. Protected areas, such as national parks and wildlife reserves, can attract tourists and contribute to the local economy. By conserving wildlife, we can harness theeconomic potential of biodiversity and support sustainable development.4. Cultural and Spiritual ValueWildlife holds cultural and spiritual significance for many communities around the world. Indigenous peoples and local communities have traditional knowledge and practices related to wildlife conservation. By protecting wildlife, we can respect and preserve these cultural values and ensure the well-being of future generations.ConclusionThe current situation of wildlife is concerning, with many species facing the risk of extinction due to human activities. It is essential to take action to protect wildlife and conserve their habitats for the benefit of our planet and future generations. Wildlife conservation is significant for maintaining biodiversity, preserving ecosystems, supporting ecosystem services, and generating economic and cultural benefits. By working together to conserve wildlife, we can ensure a healthy planet for all species to thrive.。
气候对牧业的影响英语作文Climate change has a significant impact on thelivestock industry. The changing weather patterns and extreme weather events caused by climate change can disrupt the availability of food and water for livestock. This can lead to a decrease in livestock productivity and health.Livestock animals rely on a stable and predictable climate for their survival. However, with climate change, there is an increased risk of droughts, floods, and heatwaves. These extreme weather events can destroy pastures and crops, making it difficult for livestock to find sufficient food. Additionally, the scarcity of water during droughts can lead to dehydration and malnutrition among livestock.Furthermore, the changing climate can also affect the health of livestock. Warmer temperatures can create a favorable environment for the spread of diseases and parasites. Livestock animals may become more susceptible toinfections and illnesses, leading to a decrease in their overall productivity.In addition to the direct impact on livestock, climate change can also affect the quality and availability of animal feed. Changes in temperature and precipitation patterns can alter the growth and nutrient content of crops and forage. This can result in a decrease in thenutritional value of feed, affecting the health and growth of livestock.Moreover, climate change can also affect the breeding and reproductive patterns of livestock. Changes in temperature and weather conditions can disrupt the mating and birthing cycles of animals. This can lead to a decrease in the number of offspring and a decline in the overall population of livestock.Overall, climate change poses significant challenges to the livestock industry. The unpredictable weather patterns and extreme events can disrupt the availability of food and water, affect the health and productivity of livestock, andimpact the quality and availability of animal feed. It is crucial for the livestock industry to adapt and implement strategies to mitigate the effects of climate change and ensure the sustainability of the industry.。
全球气候变化对粮食生产的影响与适应考研英语作文范文The Impact of Global Climate Change on Food Production and AdaptationIn recent years, global climate change has become a pressing issue that poses significant challenges to food production worldwide. The adverse effects of the changing climate, including rising temperatures, altered precipitation patterns, and increased frequency of extreme weather events, are already being witnessed in various regions around the globe. This essay aims to explore the impact of global climate change on food production and discuss potential strategies for adaptation.Firstly, rising temperatures have a direct impact on crop yields. High temperatures can lead to heat stress in plants,negatively affecting their growth and productivity. Crops such as wheat, maize, and rice are particularly vulnerable to temperature extremes. Studies have shown that a 1-degree Celsius increase in temperature during the growing season can result in a decline of 3-5% in wheat and rice yields. As global temperatures continue to rise, it is expected that crop productivity will be significantly reduced, leading to potential food shortages.Secondly, altered precipitation patterns due to climate change also pose challenges to food production. Some regions may experience increased rainfall, leading to waterlogging, soil erosion, and increased incidence of pests and diseases. On the other hand, other areas may face droughts and reduced water supplies, affecting crop growth and yield. For example, in regions heavily dependent on rainfall for agriculture, such as sub-Saharan Africa, decreased precipitation could lead to crop failures and increased food insecurity.Furthermore, global climate change is expected to increase the frequency and intensity of extreme weather events, such as hurricanes, typhoons, and floods. These events can cause significant damage to crops, livestock, and infrastructure, disrupting food production and distribution systems. In addition to physical damage, extreme weather events can also result in post-harvest losses and increased food waste due to transportation and storage difficulties. Consequently, the effects of these events can have long-lasting implications for food availability and accessibility.To adapt to the impact of global climate change on food production, various strategies can be employed. Firstly, there is a need for improved crop breeding and agronomic practices that enhance resilience and tolerance to higher temperatures and altered precipitation patterns. Research and development in drought-tolerant and heat-tolerant crop varieties can help mitigate the adverse effects of climate change on yields.Furthermore, investment in irrigation infrastructure and water management technologies is crucial to ensure water availability for agriculture, particularly in regions proneto droughts. Drip irrigation, rainwater harvesting systems, and improved water storage facilities can contribute to more efficient water use and reduce dependence on rainfall.Additionally, promoting sustainable and climate-smart agricultural practices can help enhance resilience and minimize greenhouse gas emissions. Practices such as conservation agriculture, agroforestry, and organic farming can improve soil health, reduce soil erosion, and enhance carbon sequestration. Moreover, adopting precision farming techniques that utilize data and technology to optimize crop management can improve resource efficiency and reduce environmental impacts.Lastly, strengthening global cooperation and implementing international policies to combat climate change are essential.Countries need to work together to reduce greenhouse gas emissions, promote renewable energy sources, and adapt to the consequences of climate change. International collaborations can provide support for developing countries in implementing adaptation strategies and ensure equitable access to resources and expertise.In conclusion, global climate change poses significant challenges to food production due to rising temperatures, altered precipitation patterns, and increased frequency of extreme weather events. These impacts have the potential to result in reduced crop yields, food shortages, and increased food insecurity. However, through the adoption of adaptation strategies such as improved crop varieties, water management techniques, sustainable agricultural practices, and global cooperation, it is possible to mitigate the effects of climate change and ensure food security for future generations.。
高二环境保护英语阅读理解25题1<背景文章>Global warming is one of the most pressing issues of our time, having a profound impact on the Earth's ecosystems. Sea - level rise is a significant consequence of global warming. As the Earth's temperature increases, glaciers and ice caps are melting at an alarming rate. This melting ice contributes to the rise in sea levels. For low - lying islands and coastal regions, this is a catastrophic threat. Many small islands are in danger of being completely submerged, displacing countless communities.The increase in temperature also disrupts the climate patterns. Extreme weather events such as heatwaves, droughts, and heavy rainfall are becoming more frequent and intense. Heatwaves can cause widespread damage to crops, leading to food shortages. Droughts parch the land, making it difficult for plants and animals to survive. On the other hand, excessive rainfall can lead to floods, which can destroy habitats and infrastructure.Species extinction is another tragic result of global warming. Many species have very specific environmental requirements for their survival. As the climate changes, their habitats are altered or destroyed. For example, polar bears rely on sea ice for hunting and breeding. With the reduction insea ice due to global warming, their survival is at risk. Similarly, many species of plants and animals in coral reefs are facing extinction as the warmer waters cause coral bleaching, destroying their homes.In conclusion, global warming is a complex and far - reaching problem that is causing significant damage to the Earth's ecosystems. Urgent action is needed to mitigate its effects and protect the delicate balance of life on our planet.1. What is one of the main causes of sea - level rise according to the article?A. More rainfallB. The melting of glaciers and ice capsC. Human activities near the coastD. Stronger ocean currents答案:B。
Strategies for Sustainable Agriculture Sustainable agriculture is an approach to farming that aims to meet the needs of the present without compromising the ability of future generations to meet their own needs. It is an essential strategy for ensuring food security, reducing poverty, and promoting environmental sustainability. There are several strategies that can be employed to promote sustainable agriculture, including conservation agriculture, agroforestry, crop diversification, and integrated pest management.Conservation agriculture is a farming system that involves minimum soil disturbance, crop rotation, and the use of cover crops. This approach helps to improve soil health, reduce erosion, and increase water retention. It also helps to reduce the use of synthetic fertilizers and pesticides, which can have negative impacts on the environment and human health. Conservation agriculture has been shown to increase crop yields, reduce production costs, and improve the livelihoods of small-scale farmers.Agroforestry is another strategy for sustainable agriculture that involves the integration of trees into farming systems. Trees can provide a range of benefits, including soil conservation, nutrient cycling, and biodiversity conservation. They can also provide a source of income through the sale of timber, fruits, and other products. Agroforestry has been shown to increase crop yields, improve soil health, and reduce greenhouse gas emissions.Crop diversification is a strategy that involves growing a variety of crops on a single farm. This approach helps to reduce the risk of crop failure due to pests, diseases, or weather events. It also helps to improve soil health by reducing the need for synthetic fertilizers and pesticides. Crop diversification can also provide a source of income through the sale of different crops at different times of the year.Integrated pest management is a strategy that involves the use of a range of techniques to control pests and diseases, including biological control, cultural control, and the use of pesticides as a last resort. This approach helps to reduce the negative impacts of pesticides on the environment and human health. It also helps to improve soil health by reducing the use of synthetic fertilizers and pesticides.In addition to these strategies, there are several other approaches that can be employed to promote sustainable agriculture. These include the use of organic farming practices, the promotion of local food systems, and the development of sustainable land use policies. Organic farming practices involve the use of natural fertilizers and pest control methods, and the avoidance of synthetic chemicals. Local food systems involve the production and distribution of food within a local area, which can reduce the environmental impacts of transportation and support local economies. Sustainable land use policies involve the protection of natural resources, such as forests, wetlands, and wildlife habitats.In conclusion, sustainable agriculture is essential for ensuring food security, reducing poverty, and promoting environmental sustainability. There are several strategies that can be employed to promote sustainable agriculture, including conservation agriculture, agroforestry, crop diversification, and integrated pest management. These strategies can help to improve soil health, reduce the use of synthetic fertilizers and pesticides, and increase crop yields. In addition to these strategies, there are several other approaches that can be employed to promote sustainable agriculture, including the use of organic farming practices, the promotion of local food systems, and the development of sustainable land use policies. By adopting these strategies, we can ensure that we meet our current food needs without compromising the ability of future generations to meet their own needs.。
湖南省炎德英才大联考2024届高三第二次诊断性检测试题英语试题文试卷注意事项:1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。
2.回答选择题时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再选涂其它答案标号。
回答非选择题时,将答案写在答题卡上,写在本试卷上无效。
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第一部分(共20小题,每小题1.5分,满分30分)1.—Why did you come by taxi?—My car broke down last week and I still it repaired.A.didn’t have B.hadn’t hadC.haven’t had D.won’t have2.Many of us see reading as an investment in ourselves,so it’s only natural that we want to learn something useful________ our efforts.A.in view of B.in response toC.in parallel with D.in return for3.Not having worked out the program, ________ leave the office.A.so he was forbidden to B.and he didn’t want toC.his little son couldn’t make him D.be couldn’t free himself to4.— He made an apology be blamed what he had done.— It's really wise of him.A.so as to not; of B.in order to not; forC.so as not to; for D.in order not to; of5.Like all parents in the world,we want you to grow up in a world __________ is full of love and kindness. A.where B.thatC.when D.what6.—Shall we put off the experiment till next week?—______, I don’t think our teacher will be happy with it.A.Never mind B.Sure, go aheadC.Y es, better not D.I’d rather not7.—What a pity! You missed my birthday party.—Terribly sorry!___________my uncle not visited me unexpectedly.A.Should B.WouldC.Had D.Did8.It rained this morning, _____ actually didn’t bother me because I like walking in the rain.A.what B.whenC.where D.which9.–Let’s take a coffee break, shall we?–I wish I ________, but I have a really tight schedule.A.can B.shall C.could D.should10.The dining room is clean and tidy, with a table already ______for a big meal.A. being laid B.laying C.to lay D.laid11.--- Are you free now? I have something interesting to tell you.---OK, you make it short I will have to work on this term paper due tomorrow.A.now that B.as soon asC.every time D.as long as12.In spring, the scene on the top of the hill is so appealing that it is ________ my words.A.above B.overC.beyond D.off13.一"Peter, have you got your new flat furnished?—Yes. I ______ some used furniture and it was a real bargain.A.will buy B.have bought C.bought D.had bought14.The incident turned him into different person, even if he did not realize it at beginning.A.a; a B.the; the C.the; a D.a; the15.______ what had happened, they knew I would struggle and simply wanted to help because it was the right thing to do.A.Hearing B.To have heard C.Having heard D.Heard16.China’s BeiDou Navigation Satellite System, whose positioning ________ will reach 2.5 meters by 2020, will soon provide services for more countries.A.accuracy B.categoryC.function D.reference17.Fortunately somebody who happened to be passing by called the emergency aid the traffic accident occurred. A.hurriedly B.quickly C.immediately D.shortly18.She seems to prefer American TV Shows to talking to me.A.to watch B.to be watching C.watching D.having watched19._______ a record-breaking seven Golden Globes, the musical La La Land surprisingly does not appeal to Chinese viewers.A.Winning B.WonC.Having won D.To win20.Many questions have been answered by John. He must have previewed the lessons last night, ____ he?A.needn’t B.hasn’t C.didn’t D.mustn’t第二部分阅读理解(满分40分)阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。
时事热点素材英语作文Title: The Impact of Climate Change on Global Agriculture。
Climate change has become an increasingly pressing issue in recent years, with its effects being felt across the globe. One of the sectors most significantly impacted by climate change is agriculture. In this essay, we will explore the various ways in which climate change affects global agriculture and discuss potential solutions to mitigate its adverse effects.First and foremost, rising temperatures due to climate change have led to changes in precipitation patterns and more frequent extreme weather events such as droughts, floods, and heatwaves. These weather phenomena pose significant challenges to agricultural productivity and food security. Droughts, for example, can cause water shortages, leading to crop failures and reduced yields. Floods, on the other hand, can destroy crops, soilfertility, and infrastructure essential for agriculture.Furthermore, climate change has altered thedistribution and behavior of pests and diseases, thereby affecting crop health and productivity. Warmer temperatures allow pests to thrive in regions where they were previously unable to survive, leading to increased pest infestations and crop damage. Likewise, changes in precipitation patterns create favorable conditions for the spread ofplant diseases, further threatening agricultural productivity.Moreover, climate change exacerbates soil degradation and erosion, which are already significant challenges facing global agriculture. Intense rainfall eventsresulting from climate change can cause soil erosion, leading to loss of soil fertility and reduced crop yields. Additionally, higher temperatures can accelerate the decomposition of organic matter in the soil, further depleting soil nutrients essential for plant growth.In addition to its direct impacts on agriculturalproductivity, climate change also poses socio-economic challenges for farmers, particularly those in developing countries. Smallholder farmers, who often rely on rain-fed agriculture for their livelihoods, are particularly vulnerable to the adverse effects of climate change. Reduced crop yields and income loss resulting from climate-related disasters can push these farmers deeper into poverty, exacerbating food insecurity and rural poverty.Despite these challenges, there are several strategies that can help mitigate the impacts of climate change on agriculture. Adopting climate-smart agricultural practices, such as conservation agriculture, agroforestry, and integrated pest management, can help build resilience to climate change while improving productivity and sustainability. These practices promote soil conservation, water efficiency, and biodiversity, thereby enhancing the resilience of agricultural systems to climate-related stresses.Furthermore, investing in climate-resilient crop varieties and livestock breeds can help ensure foodsecurity in the face of changing climatic conditions. Plant breeding programs aimed at developing heat-tolerant,drought-resistant, and pest-resistant crop varieties can help farmers adapt to the challenges posed by climate change. Similarly, breeding livestock for heat toleranceand disease resistance can help reduce the vulnerability of livestock production systems to climate-related stresses.In conclusion, climate change poses significant challenges to global agriculture, threatening food security, livelihoods, and rural development. However, by adopting climate-smart agricultural practices and investing in resilient crop and livestock varieties, we can mitigate the impacts of climate change on agriculture and build a more sustainable and food-secure future. It is imperative that governments, policymakers, researchers, and farmers work together to address the challenges posed by climate change and ensure the resilience and sustainability ofagricultural systems worldwide.。
袁隆平培育杂交水稻英语作文Yuan Longping, a Chinese agronomist and educator, is renowned for his pioneering work in developing hybrid rice varieties. His groundbreaking research and dedication to improving agricultural practices have had a significant impact on global food production. In this essay, I will explore the contributions of Yuan Longping in cultivating hybrid rice and the implications of his work on the agricultural industry.Yuan Longping's interest in rice cultivation began in the 1960s when he started experimenting with hybrid rice varieties. Hybrid rice is a crossbreed of two different rice varieties, resulting in plants that exhibit higher yields and better resistance to pests and diseases. Yuan Longping's research focused on increasing rice productivity to address food shortages in China and other developing countries.One of Yuan Longping's most notable achievements is the development of the first high-yielding hybrid rice variety,known as IR8. This variety revolutionized rice production by doubling or tripling the yield compared to traditional rice varieties. The success of IR8 inspired further research and innovation in hybrid rice breeding, leading to the development of new varieties with even higher yields and improved quality.Yuan Longping's work has had a profound impact on global food security. By increasing rice yields, his hybrid varieties have helped to alleviate hunger and poverty in many regions of the world. In addition, the improved resistance of hybrid rice plants to pests and diseases has reduced the need for chemical pesticides, making rice production more environmentally sustainable.Furthermore, Yuan Longping's research has paved the way for advancements in agricultural science and technology. His innovative breeding techniques and genetic research have provided valuable insights into plant genetics and breeding strategies. The knowledge gained from his work has been instrumental in developing new hybrid varieties of other crops, contributing to increased crop yields and improved agricultural practices.In conclusion, Yuan Longping's contributions to the field of hybrid rice cultivation have been invaluable. His research has not only increased rice yields and improved food security but also advanced agricultural science and technology. As we continue to face challenges such as climate change and population growth, the legacy of Yuan Longping will continue to inspire future generations of researchers and farmers to innovate and strive for a more sustainable and productive agricultural future.。
应对区爱护学校专题一阅读理解第一讲细节理解类真题验证题组一A(2017·全国Ⅱ,A) 47404000 In the coming months, we are bringing together artists from all over the globe, to enjoy speaking Shakespeare's plays in their own language, in our Globe, within the architecture Shakespeare wrote for. Please come and join us.National Theatre of China Beijing|ChineseThis great occasion(盛会)will be the National Theatre of China's first visit to the UK. The company's productions show the new face of 21st century Chinese theatre. This production of Shakespeare's RichardⅢ will be directed by the National's Associate Director, Wang Xiaoying.Date & Time:Saturday 28 April, 2.30pm & Sunday 29 April, 1.30pm & 6.30pmMarjanishvili Theatre Tbilisi|GeorgianOne of the most famous theatres in Georgia, the Marjanishvili, founded in 1928, appears regularly at theatre festivals all over the world. This new production of As You Like It is helmed (指导)by the company's Artistic Director Levan Tsuladze.Date & Time:Friday 18 May, 2.30pm & Saturday 19 May, 7.30pmDeafinitely Theatre London I British Sign Language(BSL)By translating the rich and humourous text of Love's Labour's Lost into the physical language of BSL, Deafinitely Theatre creates a new interpretation of Shakespeare's comedy and aims to build a bridge between deaf and hearing worlds by performing to both groups as one audience.Date & Time: Tuesday 22 May, 2.30pm & Wednesday 23 May, 7.30pmHabima National Theatre Tel Aviv|HebrewThe Habima is the centre of Hebrew-language theatre worldwide. Founded in Moscow after the 1905 revolution, the company eventually settled in Tel Aviv in the late 1920s. Since 1958, they have been recognised as the national theatre of Israel. This production of Shakespeare's TheMerchant of Venice marks their first visit to the UK.Date & Time:Monday 28 May, 7.30pm & Tuesday 29 May, 7.30pm文章大意:本文是一篇应用文,主要介绍了全球的艺术家将聚集到一起用他们自己的语言表演莎士比亚的戏剧的相关内容。
Rice Breeding StrategiesRice is a staple food for more than half of the world's population. It is a major source of carbohydrates, vitamins, and minerals. With the increasing population and demand for food, rice breeding strategies have become crucial to meet the growing demand for high-yielding and disease-resistant varieties. In this article, we will discuss the various rice breeding strategies that are being used to improve the yield, quality, and resistance of rice crops.The traditional breeding approach involves selecting plants with desirable traits and crossing them to produce offspring with the desired traits. This approach has been used for centuries and has led to the development of many high-yielding and disease-resistant rice varieties. However, this approach is time-consuming and requires a lot of resources. It can take several years to develop a new variety using this approach.To overcome the limitations of traditional breeding, modern biotechnology tools are being used to develop new rice varieties. One such tool is marker-assisted breeding. This approach involves identifying DNA markers that are linked to desirable traits and using them to select plants with those traits. This approach is faster and more efficient than traditional breeding, as it allows breeders to identify desirable traits at an early stage of plant development.Another biotechnology tool that is being used to develop new rice varieties is genetic engineering. This approach involves inserting genes from other organisms into rice plants to confer desirable traits. For example, genes from bacteria can be inserted into rice plants to make them resistant to pests and diseases. This approach has the potential to produce rice varieties with higher yields and better resistance to biotic and abiotic stresses.In addition to these biotechnology tools, there are also non-genetic approaches that are being used to improve rice crops. One such approach is the use of hybrid rice. Hybrid rice is produced by crossing two genetically distinct parents to produce offspring with desirable traits. This approach has been shown to increase yields by up to 30% compared to conventional rice varieties.Another non-genetic approach that is being used to improve rice crops is the use of system of rice intensification (SRI). SRI is a set of farming practices that involves transplanting young seedlings, using wider spacing between plants, and applying organic fertilizers. This approach has been shown to increase yields by up to 50% compared to conventional farming practices.In conclusion, rice breeding strategies are essential to meet the growing demand for high-yielding and disease-resistant rice varieties. Traditional breeding, marker-assisted breeding, genetic engineering, hybrid rice, and SRI are all being used to improve rice crops. Each approach has its advantages and limitations, and the choice of approach depends on the specific needs of the farmers and the environment. With the increasing population and demand for food, it is important to continue to develop new rice varieties that are more productive, resilient, and sustainable.。
193Abstract Some suggestions for future research on food availability, access, and utilization impacts of climate change are presented. Top priorities include better characterization of uncertainties in climate and crop responses, examining income responses to yield changes, and quantifying links between incomes, health, and food security. Many of these questions will require a more interdisciplinary approach than has been typical of past research.11.1 I ntroductionThe concepts and models described in this book have evolved out of the work of thousands of researchers over many decades. We collectively know an impressive amount about climate and food systems, but there is far more that remains to be uncovered. In this chapter, we provide our view of the most pressing research needs, aimed to stimulate thought and activity among students and researchers. We return for this discussion to the three factors that comprise food security, as outlined in Chapter 2, and identify several questions for each topic.Most of the questions below will require insight from multiple disciplines, including climate science, agronomy, crop and animal breeding, ecology, economics, nutrition, and human health. The fact that so many of these questions remain to be explored, even at a superficial level, is a testament to how difficult it can be to work across disciplinary boundaries. Though there are some valid reasons for focusing on single disciplines, many of the obstacles to interdisciplinary work relate to traditional incentive structures for researchers that should be reformed. Only by dealing with the complex reality of food security and by gaining insight from various perspectives can we hope to make big leaps in our understanding of how best to prepare for a warmer world.Chapter 11Where Do We Go from Here?David Lobell and Marshall BurkeD. Lobell and M. Burke (eds.), Climate Change and Food Security ,Advances in Global Change Research 37, DOI 10.1007/978-90-481-2953-9_11,© Springer Science + Business Media, B.V . 200D. Lobell and M. BurkeStanford Univeristy, CA, USA1194 D. Lobell and M. Burke 11.2 F ood Availability1. Efforts to better quantify and reduce uncertainties related to processes alreadyrepresented in crop models are perhaps the most critical need for anticipating effects on food availability. A primary means for achieving this will be more experimental studies that manipulate temperature, CO 2, soil moisture, and ozone, both separately and in combination, and for a range of crops of importance to the food insecure. The experiments will be particularly useful in tropical systems where they have been essentially non-existent in the past. A second important approach will be to con-tinue to test existing ecophysiological models with observations of yield and weather variations, at scales ranging from individual fields to entire regions. These same observations should also be used in time-series and panel-based analyses.2. More effort is also needed to quantify and reduce uncertainties in future climate.No longer should studies use output from just one or two climate models, as projections of 20+ GCMs are now commonly available. Improvements in down-scaling techniques will also be of use, although in our view the importance of such efforts is often overestimated, given that downscaling is most critical for rainfall whereas the consequences of rainfall trends will be relatively small com-pared to warming in many places.3. Much work is needed to assess the reliability of water resources in irrigatedareas, a factor that is just beginning to be considered in tandem with direct yield effects. Similarly, the effects of higher ozone, weeds, pests and pathogens, and sea level rise on crop productivity remain largely unknown and deserving of more quantitative scrutiny. Adding complexity to models should not, in and of itself, be a goal of future research, and in many cases it is unlikely that these fac-tors will significantly change results. Instead, we should seek to identify the domain over which current models are inadequate, and identify not only the key factors needed in those instances but also the size of that domain. Too often a model that fails (or succeeds) in modeling one particular location and set of con-ditions is dismissed (or applied) in all other situations.4. There are numerous questions about how fast and effective adaptation measureswill be. At the farm level, these include how well farmers’ can perceive climate trends amidst substantial variability, how well they understand the response of their crops to these trends, how quickly they can learn and implement new tech-nologies, and what are the risks and likelihood of success for these adaptations. All of these should be amenable to some evaluation, particularly using data from the most recent decade in regions that have been warming most rapidly. There are also important questions about the scope for technology development, and more communication between the crop modeling and crop improvement com-munities appears particularly worthwhile. Yet often the impacts of future tech-nologies are difficult to anticipate in advance (if we knew what the technologies would be, we’d already have them!)5. Surprisingly little has been done to evaluate the true scope of cropland expansion incolder regions. All trade models include some component of cropland expansion,195 11 Where Do We Go from Here?and often this is a critical relief valve for price pressures. But how suitable will the soils in these zones really be for crop production, and how quickly will expansion take place? Again, evidence from recent decades, such as the expansion of wheat in Northern China, should help to better understand these dynamics.11.3 F ood Access1. As the bulk of poor and hungry populations are in rural areas and have close tiesto food production, their incomes could be significantly impacted by both local and global scale yield impacts. Many economic assessments to date have con-sidered GDP growth as independent of agricultural impacts, but this is clearly not the case, particularly in the poorest of countries. Future work should more explicitly consider effects on income and resulting impacts on food security.Critical questions in this area will be the degree to which malnourishment remains concentrated in rural areas, the net position (buyers or sellers) of the poor for key crops, the percent of expenditures on food, and the wage impacts of changes in crop prices.2. A related question is whether getting out of agriculture represents a viable adap-tation strategy for food insecure populations. Clearly some degree of income diversification has been a useful strategy for coping with inter-annual variability.But will it be possible to create enough economic growth outside of agriculture-related industries to reduce the dependence of most people on agricultural pro-ductivity? Would governments be wise to promote investment in these other sectors over agriculture in areas that face the most severe impacts?3. Finally, we lack basic knowledge of how climate change might interact with moretraditional development strategies aimed at improving smallholder productivity and incomes. For instance, if adoption of fertilizer and improved agricultural tech-nology is seen as central to improving rural livelihoods, and a primary explanation for current low adoption rates is farmer risk avoidance in the face of a variable climate, then will future changes in climate further inhibit technology adoption?11.4 F ood Utilization1. Despite recent evidence that higher atmospheric CO2 will tend to lower proteinand micronutrient concentrations (see Chapter 7), there is much we don’t know about the eventual health consequences of these changes. Will they be less or more important than associated changes in calorie consumption, and how do the two interact? What management options exist to minimize the reductions in pro-tein or micronutrient levels in crops?2. Climate change will very likely influence the exposure and infection rates forvarious human diseases, as discussed in Chapter 2. How will these changes196 D. Lobell and M. Burke aggravate, or be aggravated by, changes in food security? What are the critical links between disease and hunger and what are the best points of intervention to improve outcomes?11.5 F inal ThoughtsIn pursuing the above scientific questions or the many others we have undoubtedly ignored, and in presenting and communicating the results, we should never lose sight of how difficult it is to predict the future. Models will always be simplifica-tions of reality, and predictions should always be treated with humility and caution. But as discussed in Chapter 1, models provide valuable insight by synthesizing our knowledge of the world and translating it into probabilities of outcomes we care about, and thus help separate the very plausible from the very unlikely. Even if humans tend to err on the side of arrogance more than humility, the danger of understating things we know well is no less than that of overstating those we don’t.In this vein, one thing appears almost certainly true in the twenty-first century: if agriculture and food security are to thrive, they will have to do so in a constantly warming world. The level of climate stability that has been experienced since the dawn of agriculture is a thing of the past; the future will be one of constant change. This need not spell disaster for food security, but we would be wise not to underes-timate the enormity of the challenge at hand.。