Impact of Global Warming on Chinese Wheat Productivity. PDF Download
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Author: Liangzhi You, Mark W. Rosegrant, Cheng Fang, and Stanley Wood
Publisher: Intl Food Policy Res Inst
ISBN:
Category : Social Science
Languages : en
Pages : 30
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Book Description
Author: Liangzhi You, Mark W. Rosegrant, Cheng Fang, and Stanley Wood
Publisher: Intl Food Policy Res Inst
ISBN:
Category : Social Science
Languages : en
Pages : 30
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Book Description
Author: G.Y. Tsuji
Publisher: Springer Science & Business Media
ISBN: 9401736243
Category : Science
Languages : en
Pages : 405
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Book Description
The first premise of this book is that farmers need access to options for improving their situation. In agricultural terms, these options might be manage ment alternatives or different crops to grow, that can stabilize or increase household income, that reduce soil degradation and dependence on off-farm inputs, or that exploit local market opportunities. Farmers need a facilitating environment, in which affordable credit is available if needed, in which policies are conducive to judicious management of natural resources, and in which costs and prices of production are stable. Another key ingredient of this facilitating environment is information: an understanding of which options are viable, how these operate at the farm level, and what their impact may be on the things that farmers perceive as being important. The second premise is that systems analysis and simulation have an impor tant role to play in fostering this understanding of options, traditional field experimentation being time-consuming and costly. This book summarizes the activities of the International Benchmark Sites Network for Agrotechnology Transfer (IBSNAT) project, an international initiative funded by the United States Agency for International Development (USAID). IBSNAT was an attempt to demonstrate the effectiveness of understanding options through systems analysis and simulation for the ultimate benefit of farm households in the tropics and subtropics. The idea for the book was first suggested at one of the last IBSNAT group meetings held at the University of Hawaii in 1993.
Author: Daniel Hillel
Publisher:
ISBN: 9781783265633
Category : Science
Languages : en
Pages : 1160
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Book Description
"Joint Publication with the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America."
Author: Heung-Chun Tsang
Publisher: Open Dissertation Press
ISBN: 9781361263211
Category :
Languages : en
Pages :
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Book Description
This dissertation, "The Impact of the Global-warming-led Climate Change on Agricultural Production of Major Grain Producing Regions in China" by Heung-chun, Tsang, 曾向俊, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4673304 Subjects: Crops and climate - China Global warming - China Climatic changes - China Agricultural productivity - Environmental aspects - China
Author: Cynthia Rosenzweig
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 344
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Book Description
This book analyzes and elucidates the nature of predictable changes on the world's agricultural system caused by the so-called greenhouse effect. Its aim is to educate students at the undergraduate level about how the climatic factors affecting agriculture may be modified in the future, andwhat practical adaptations might be undertaken to prevent or overcome any possible adverse impacts on our ability to feed the world's population. The book draws on several complimentary disciplines, including atmospheric science, hydrology, soil science, crop physiology, and resource economics, andintegrates the relevant aspects of these fields.
Author: Jinxia Wang
Publisher: World Bank Publications
ISBN:
Category : Agriculture
Languages : en
Pages : 41
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Book Description
Abstract: Several studies addressing the supply and demand for food in China suggest that the nation can largely meet its needs in the coming decades. However, these studies do not consider the effects of climate change. This paper examines whether near future expected changes in climate are likely to alter this picture. The authors analyze the effect of temperature and precipitation on net crop revenues using a cross section consisting of both rainfed and irrigated farms. Based on survey data from 8,405 households across 28 provinces, the results of the Ricardian analysis demonstrate that global warming is likely to be harmful to China but the impacts are likely to be very different in each region. The mid latitude region of China may benefit from warming but the southern and northern regions are likely to be damaged by warming. More precipitation is beneficial to Chinese farmers except in the wet southeast. Irrigated and rainfed farmers have similar responses to precipitation but not to temperature. Warmer temperatures may benefit irrigated farms but they are likely to harm rainfed farms. Finally, seasonal effects vary and are offsetting. Although we were able to measure the direct effect of precipitation and temperature, we could not capture the effects of change in water flow which will be very important in China. Can China continue feeding itself if climate changes? Based on the empirical results, the likely gains realized by some farmers will nearly offset the losses that will occur to other farmers in China. If future climate scenarios lead to significant reductions in water, there may be large damages not addressed in this study.
Author: Chengzhi Cai
Publisher: Springer Nature
ISBN: 9811952132
Category : Science
Languages : en
Pages : 227
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Book Description
This book analyzes potential yields of six major food crops - rice, wheat, maize, potato, soybean and rapeseed worldwide using both qualitative and quantitative approaches to study both China’s and global food security under climate change. Firstly, it reviews previous studies on potential yields of rice, wheat, maize, potato, soybean and rapeseed worldwide to provide a detailed information of studying on China’s and global food security based on the product’s supply and demand of these crops. Secondly, average and top (national) yields of rice, wheat, maize, potato, soybean and rapeseed since 1961 on global scale are employed to analyze their temporal and spatial variation trends and potential limits. Thirdly, the effects of global warming in climate change on both average and top yields of rice, wheat, maize, potato, soybean and rapeseed since 1961 at global level are analyzed using regression model, and their differences between average and top yields among these crops are identified and compared. Fourthly, the yields and per capita quantity of rice, wheat, maize, potato, soybean and rapeseed in major producer-countries and the world are analyzed to assess the situation and trend of international trade for the products of these crops, respectively. Fifthly, potential yields of rice, wheat, maize, potato, soybean and rapeseed worldwide by 2030 are projected using both trend-regressed models and ARIMA models to estimate the per capita quantity of these crops based on the projection of world population and assess the status of Chinese and global food security in that future. Finally, it provides policy implications and advice on food security for China and the world directing food production by 2030 under climate change.
Author: Raj Kumar Pal
Publisher: LAP Lambert Academic Publishing
ISBN: 9783847370307
Category :
Languages : de
Pages : 144
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Book Description
Climate change is one of the most important environmental challenges with its implications on food security, water supply, health, energy etc. The wheat production in the country is highly variable due to inter seasonal weather variability and has been projected to be 109 mt by 2020 which needs sincere efforts to mitigate the effect of climatic aberrations. Specifically, the main purpose of this study was to quantify the impact of changes in temperature, solar radiation and CO2 concentration that affect the level of wheat production. The impact of climate change on wheat production can be minimized through adaptability, varietal management and agronomic practices using CERES-wheat model. In Uttarakhand, wheat productivity accounted 15 % to 30 % more with the timely sown crop (20th November) than late sowing. Wheat yield has the positive correlation with CO2 concentration and negatively correlated with temperature. This book, therefore, provides a new metric of success for farmers to deciding agricultural operations and minimize the risks and extremely important to planners in the developing countries which will be the most vulnerable to the effects of global warming.
Author: Saowanit Prabnakorn
Publisher: CRC Press
ISBN: 9781003024033
Category : Science
Languages : en
Pages : 0
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Book Description
Floods and droughts are climate extremes that account for more than 80% of people affected by natural disasters worldwide. Both catastrophes co-exist in many river basins, for example, the Mun River Basin in Thailand, which is selected as the study area. Approximately 90% of rice cultivation here is rain-fed, and that results in the lowest yields in the country, making many farmers persist in poverty. This study aims to assess floods and droughts and their impacts on agriculture at the basin scale. For flooding, the hydrologic and hydraulic models were developed to produce the first completed flood hazard maps at the Mun River Basin. Droughts in the basin were determined by the proposed drought risk assessment scheme that combines all three key components (hazard, exposure, and vulnerability). Subsequently, the study attempts to tackle both floods and droughts simultaneously and sustainably by using integrated measures and strategies. If the problems caused by flood and drought climate extremes are solved, this will ensure adequate food availability and alleviate poverty in the basin. Furthermore, the study shows that a holistic approach to simultaneously solving both problems is efficient as most water will be utilized to benefit agriculture, the primary sector that feeds a growing population.
Author:
Publisher: IRRI
ISBN: 9712201716
Category : Rice
Languages : en
Pages : 245
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Book Description
