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Impacts of climate change on the flow of the transboundary Koshi River, with implications for local irrigation

Author

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  • Santosh Kaini
  • Santosh Nepal
  • Saurav Pradhananga
  • Ted Gardner
  • Ashok K. Sharma

Abstract

This study assesses climate change impacts on the hydrological regime of a river basin and its implications for future irrigation water availability in the Koshi River basin using RCPs 4.5 and 8.5 over short-term (2016-2045), mid-century (2036-2065) and end-of-century (2071-2100) periods. Average flow in the Koshi River is projected to increase. Projections of average minimum monthly river flow suggest that the areas of winter wheat and monsoon paddy rice could be increased. However, the planting period of paddy rice should be delayed by one month (July to August) to capture the expected increased water availability in the river.

Suggested Citation

  • Santosh Kaini & Santosh Nepal & Saurav Pradhananga & Ted Gardner & Ashok K. Sharma, 2021. "Impacts of climate change on the flow of the transboundary Koshi River, with implications for local irrigation," International Journal of Water Resources Development, Taylor & Francis Journals, vol. 37(6), pages 929-954, November.
    • Handle: RePEc:taf:cijwxx:v:37:y:2021:i:6:p:929-954
    DOI: 10.1080/07900627.2020.1826292
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    Cited by:

    1. Wang, Shunke & Chang, Jingjing & Xue, Jie & Sun, Huaiwei & Zeng, Fanjiang & Liu, Lei & Liu, Xin & Li, Xinxin, 2024. "Coupling behavioral economics and water management policies for agricultural land-use planning in basin irrigation districts: Agent-based socio-hydrological modeling and application," Agricultural Water Management, Elsevier, vol. 298(C).
    2. Manh Hung Do & Trung Thanh Nguyen, 2023. "Does irrigation development mitigate weather extremes’ impacts and reduce poverty? Evidence from rural Southeast Asia," TVSEP Working Papers wp-034, Leibniz Universitaet Hannover, Institute for Environmental Economics and World Trade, Project TVSEP.

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