气候变化领域集成服务门户(CCPortal): Changes in water demands under adaptation actions to climate change in an irrigation district

CCPortal

DOI	10.2166/wcc.2016.028
	Changes in water demands under adaptation actions to climate change in an irrigation district
	Ojeda-Bustamante W.; Ontiveros-Capurata R.E.; Flores-Velázquez J.; Iñiguez-Covarrubias M.
发表日期	2017
ISSN	20402244
起始页码	191
结束页码	202
卷号	8 期号:2
英文摘要	Climate change will affect the water balance of irrigated agriculture. Therefore, farmers and irrigation managers should consider adapting to new scenarios. Changes in water demands in a Mexican irrigation district were studied using an irrigation-scheduling model. The impact on water demands of two potential adaptation actions, adjusting planting season and using longer-season varieties (LV), was estimated and compared with a baseline scenario. Two cropping plans (wet and dry) for the last 15 water years were considered. Cumulative and daily irrigation demands were estimated for each agricultural season and each adaptation action. The reference period (1961–1990) and three future climate projections (2011–2040, 2041–2070, 2071–2098) under A1B scenario were used. Results indicated that without adaptation water demands will decrease as temperatures increase and season lengths will shorten. However, as farmers respond with adaptation actions to maintain actual yields, water demand can be higher than non-adaptation action. The impacts of climate change on water demands depend on the adopted adaptation actions and have a greater effect on peak and cumulative demands. The water demands increased by 2.4% when LV were used and 16.3% when this is combined with adjusting planting season. Thus, adaptation actions should be chosen carefully to minimize future agricultural risk. © IWA Publishing 2017.
英文关键词	Adaptation strategies; Climate change; Crop water requirement; Irrigation schemes; Mexico; Regional climate models
语种	英语
scopus关键词	Agriculture; Climate models; Irrigation; Adaptation strategies; Crop water requirements; Irrigation schemes; Me-xico; Regional climate models; Climate change; adaptive management; climate change; climate effect; climate modeling; irrigation; regional climate; water budget; water demand; Mexico [Mexico (NTN)]; Mexico [North America]
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148112
作者单位	Instituto Mexicano de Tecnología del Agua (IMTA), Paseo Cuauhnáhuac 8532, Jiutepec, Mor. CP. 62550, Mexico
推荐引用方式 GB/T 7714	Ojeda-Bustamante W.,Ontiveros-Capurata R.E.,Flores-Velázquez J.,et al. Changes in water demands under adaptation actions to climate change in an irrigation district[J],2017,8(2).
APA	Ojeda-Bustamante W.,Ontiveros-Capurata R.E.,Flores-Velázquez J.,&Iñiguez-Covarrubias M..(2017).Changes in water demands under adaptation actions to climate change in an irrigation district.Journal of Water and Climate Change,8(2).
MLA	Ojeda-Bustamante W.,et al."Changes in water demands under adaptation actions to climate change in an irrigation district".Journal of Water and Climate Change 8.2(2017).