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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 12 (Page no: 193)

Mitigating greenhouse gas emissions from rice production through water-saving techniques: potential, adoption and empirical evidence.

Flooded rice fields are a large anthropogenic source of the greenhouse gas (GHG) methane (CH4). Aeration of the paddy field can reduce methane emissions and at the same time save water. Different forms of water saving techniques (WST), e.g. alternate wetting and drying (AWD) and midseason drainage (MSD), have been developed and disseminated. This article gives an overview on adoption of AWD in the Philippines and assesses prospects and constraints. It also explains the Clean Development Mechanism (CDM) methodology for rice production and analyses the mitigation potential of WST in the form of a literature review. The adoption rate of AWD strongly depends on the incentive for the farmer. While direct monetary incentives are limited to areas where saving water is directly linked to reduced costs (e.g. pump irrigation systems), indirect incentives (e.g. improved crop development) have not yet been scientifically assessed. The literature meta-analysis proves the great mitigation potential of WST. Methane emissions can be reduced by an average of 36.5% with a single drainage and by 43% with multiple aerations. Nitrous oxide emissions increase under all WST but this increase does not offset the reduction in CH4 emissions. This study also shows that the amount of GHG emissions can vary drastically between different regions. This poses a challenge for the transfer of mitigation strategies from one region to another.

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: 2 (Page no: 11) Adaptation to climate change impacts on agriculture and agricultural water management - a review. Author(s): Maskey, S. Bhatt, D. Uhlenbrook, S. Prasad, K. C. Babel, M. S.
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: 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.

Chapter details

  • Author Affiliation
  • Crop and Environmental Sciences Division, International Rice Research Institute (IRRI), Los BaƱos, Laguna, Philippines.
  • Year of Publication
  • 2016
  • ISBN
  • 9781780643663
  • Record Number
  • 20153417471