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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 8 (Page no: 120)

Water management for agricultural production in a coastal province of the Mekong River Delta under sea-level rise.

Bac Lieu province, a low-lying coastal province in the Ca Mau peninsula of the Mekong River Delta (MRD) of Vietnam, is recognized as an area strongly affected by sea-level rise (SLR) accompanying global climate change. SLR will aggravate inundation and salinity intrusion and hence exert a strong influence on agriculture and aquaculture production in the province. The study presented in this chapter aims to quantify the impacts of SLR on agriculture in this province and to propose adaptive options. The 'Vietnam River Systems and Plains' (VRSAP) model was used for simulation of water level, flow and salinity in the canal network of the MRD for 3 years of low, average and high water volume from upstream of the MRD and different levels of SLR (12, 17, 30, 50 and 75 cm). Under present sea level conditions, the western part of the province faces the highest flooding risk in October during the rainy season. In the dry season, salinity is high in the western part where farmers grow brackish water shrimp, while it is low in the eastern part where rice is grown. The inundation depth increases with the level of the SLR. For SLR less than 30 cm, salinity is expected to decrease slightly due to more fresh water from the Bassac River. When SLR is higher than 30 cm, salinity in the eastern part will also increase because the saline water intrudes into freshwater intake canals along the Bassac River. In the near future, adjustment of the cropping calendar as well as the operations of existing water control structures will be required. In the distant future, additional structures will be needed to cope with aggravated inundation and salinity.

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: 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.