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Ebooks on agriculture and the applied life sciences from CAB International

CABI Book Chapter

Climate change and agricultural water management in Developing Countries.

Book cover for Climate change and agricultural water management in Developing Countries.

Description

This book provides experiences from studies on agricultural water management under climate change as references for agriculture and irrigation planners, decision makers, researchers and students. Chapters 2 and 3 provide an overview of global assessment of climate change impacts and water requirement for future agriculture. Chapters 4-7 provide analyses of crop water requirements in four case stud...

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Chapter 2 (Page no: 11)

Adaptation to climate change impacts on agriculture and agricultural water management - a review.

This chapter reviews the global literature on impacts of climate change on agriculture and prospects for adaptation. Sensitivity of agriculture to climate change varies across the globe. Developing countries, where more than 800 million people are already undernourished, will be hardest hit. We review approaches for assessing the impact of climate change on agriculture and irrigation water requirements, and present recent progress in the assessment of adaptation measures. The challenges and constraints associated with climate change impact and adaptation research are critically discussed. The review leads to the conclusion that warmer temperatures will tend to reduce the crop yields in many regions, mainly due to reduction of crop duration associated with water stress during the critical stages of crop development. Although efforts have been made to understand better the climate-crop relationships, there is still limited understanding of the interactions between and relative importance of factors such as elevated ozone and CO2 levels, extreme weather conditions, weed variety, socio-economic changes and adaptation responses. Evaluation of diverse adaptation options from farm to policy level, and covering a range of scales and issues, including availability of resources, constraints and associated uncertainties, are essential to address adequately the impacts of climate and other changes on agriculture. Most of the published studies on adaption focus on modification of existing management practices to improve crop yield, using process-based models. Trade-offs between crop production and resource availability, which influence the farmer's decision making and profitability, have not received substantial attention. More effort is required to incorporate constraints (such as social, financial, institutional, technical and resources) and adaptive responses into the model frameworks that most studies used.

Other chapters from this book

Chapter: 1 (Page no: 1) Climate change and agricultural development: a challenge for water management. Author(s): Hoanh, C. T. Johnston, R. Smakhtin, V.
Chapter: 3 (Page no: 32) Global water requirements of future agriculture: using WATERSIM. Author(s): Sood, A.
Chapter: 4 (Page no: 48) Impacts of climate change on crop water requirements in Huang-Huai-Hai Plain, China. Author(s): Liu Qin Yan ChangRong Yang JianYing Mei XuRong Hao WeiPing Ju Hui
Chapter: 5 (Page no: 63) Impacts of climate change and adaptation in agricultural water management in North China. Author(s): Xia Jun Mo XingGuo Wang JinXia Luo XinPing
Chapter: 6 (Page no: 78) Climate change impacts and adaptation in agricultural water management in the Philippines. Author(s): Lansigan, F. P. Cruz, A. C. dela
Chapter: 7 (Page no: 97) Adaptation strategies to address the climate change impacts in three major river basins in India. Author(s): Kakumanu, K. R. Kuppannan Palanisami Aggarwal, P. K. Ranganathan, C. R. Nagothu, U. S.
Chapter: 8 (Page no: 120) Water management for agricultural production in a coastal province of the Mekong River Delta under sea-level rise. Author(s): Ngo Dang Phong Chu Thai Hoanh Tran Quang Tho Nguyen Van Ngoc Tran Duc Dong To Phuc Tuong Nguyen Huy Khoi Nguyen Xuan Hien Nguyen Trung Nam
Chapter: 9 (Page no: 135) Aquaculture adaptation to climate change in Vietnam's Mekong Delta. Author(s): Suan Pheng Kam Tran Nhuong Hoanh, C. T. Nguyen Xuan Hien
Chapter: 10 (Page no: 154) Groundwater for food production and livelihoods - the nexus with climate change and transboundary water management. Author(s): Villholth, K.
Chapter: 11 (Page no: 176) Irrigated crop production in the Syr Darya Basin: climate change rehearsal in the 1990s. Author(s): Savoskul, O. Shevnina, E.
Chapter: 12 (Page no: 193) Mitigating greenhouse gas emissions from rice production through water-saving techniques: potential, adoption and empirical evidence. Author(s): Sander, B. O. Wassmann, R. Siopongco, J. D. L. C.
Chapter: 13 (Page no: 208) Linking climate change discourse with climate change policy in the Mekong: the case of Lao PDR. Author(s): Prosinger, J. Suhardiman, D. Giordano, M.