气候变化领域集成服务门户(CCPortal): Food security in the face of climate change: Adaptive capacity of small-scale social-ecological systems to environmental variability

CCPortal

DOI	10.1016/j.gloenvcha.2016.07.005
	Food security in the face of climate change: Adaptive capacity of small-scale social-ecological systems to environmental variability
	Pérez I.; Janssen M.A.; Anderies J.M.
发表日期	2016
ISSN	0959-3780
卷号	40
英文摘要	Improving the adaptive capacity of small-scale irrigation systems to the impacts of climate change is crucial for food security in Asia. This study analyzes the capacity of small-scale irrigation systems dependent on the Asian monsoon to adapt to variability in river discharge caused by climate change. Our study is motivated by the Pumpa irrigation system, a small-scale irrigation system located in Nepal that is a model for this type of system. We developed an agent-based model in which we simulated the decisions farmers make about the irrigation strategy to use according to available water flow. Given the uncertainty associated with how climate change may affect the Asian monsoon, we simulated the performance of the system under different projections of climate change in the region (increase and decrease in rainfall, reduction and expansion of the monsoon season, and changes in the timing of the onset of the monsoon). Accordingly to our simulations, farmers might need to adapt to rainfall intensification and a late onset in the monsoon season. The demands for collective action among farmers (e.g. infrastructure repair, meetings, decisions, etc.) might increase considerably due to climate change. Although our model suggests that investment in new infrastructure might increase the performance of the system under some climate change scenarios, the high inequality among farmers when water availability is reduced might hinder the efficiency of these measures due to a reduction of farmers’ willingness to cooperate. Our modeling exercise helps to hypothesize about the most sensitive climate change scenarios for smallscale irrigation farming in Nepal and helps to frame a discussion of some possible solutions and fundamental trade-offs in the process of adaptation to improve for food and water security under climate change. © 2016
英文关键词	Adaptation; Agent-based model; Climate change; Common-pool resources; Irrigation systems; Resilience
学科领域	adaptive management; climate change; climate effect; collective action; common property resource; decision making; ecosystem resilience; farmers attitude; food security; investment; irrigation system; river discharge; water flow; Nepal
语种	英语
scopus关键词	adaptive management; climate change; climate effect; collective action; common property resource; decision making; ecosystem resilience; farmers attitude; food security; investment; irrigation system; river discharge; water flow; Nepal
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/117335
作者单位	Center for Behavior, Institutions and the Environment, Arizona State University, United States; School of Social Work, Columbia University in the City of New York, United States; School of Sustainability, Arizona State University, United States; School of Human Evolution and Social Change. Arizona State University, United States
推荐引用方式 GB/T 7714	Pérez I.,Janssen M.A.,Anderies J.M.. Food security in the face of climate change: Adaptive capacity of small-scale social-ecological systems to environmental variability[J],2016,40.
APA	Pérez I.,Janssen M.A.,&Anderies J.M..(2016).Food security in the face of climate change: Adaptive capacity of small-scale social-ecological systems to environmental variability.Global Environmental Change,40.
MLA	Pérez I.,et al."Food security in the face of climate change: Adaptive capacity of small-scale social-ecological systems to environmental variability".Global Environmental Change 40(2016).