气候变化领域集成服务门户(CCPortal): The effects of afforestation as an adaptation option: A case study in the upper Chao Phraya River basin

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DOI	10.1088/1748-9326/ab7462
	The effects of afforestation as an adaptation option: A case study in the upper Chao Phraya River basin
	Takata K.; Hanasaki N.
发表日期	2020
ISSN	17489318
卷号	15 期号:4
英文摘要	The risks of flood and drought have been projected to increase in many regions due to global warming. Afforestation is considered an adaptation option because it reduces flood risks by decreasing total runoff and peak river discharge, but it also exacerbates drought risks by increasing evapotranspiration. In this study, both effects of afforestation were evaluated in comparison with changes caused by climate warming from the viewpoint of an adaptation measure, using a land surface model. The upper Chao Phraya River basin was taken as a case study. The present climate was set as a base condition and future climate conditions projected by the moderate (RCP4.5) and strong (RCP8.5) warming scenarios in the middle and late 21st century were used. The effects of afforestation were much smaller than the changes caused by warming even with the extreme forest area expansion and soil property changes. The effect of afforestation that reduced runoff was marked in the wet season, whereas the effect of afforestation that increased evapotranspiration was noticeable in the dry season leading to little increase in dry-season runoff. These results indicate that both the decrease in runoff that reduces flood risks in the wet season and the increase in evapotranspiration that exacerbates drought risks in the dry season should be taken into consideration when evaluating the hydrological effects of afforestation under global warming. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Adaptation option; Afforestation; Chao phraya river basin; Global warming; Hydrological effects
语种	英语
scopus关键词	Climate models; Drought; Evapotranspiration; Floods; Global warming; Rivers; Runoff; Watersheds; Chao phraya river basins; Climate warming; Drought risks; Future climate; Hydrological effects; Land surface modeling; River discharge; Soil property changes; Reforestation; adaptation; afforestation; drought; evapotranspiration; flood; global warming; land surface; river discharge; runoff; Chao Phraya Basin; Thailand
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154071
作者单位	Center for Climate Change Adaptation, National Institute for Environmental Studies, Tsukuba, Japan
推荐引用方式 GB/T 7714	Takata K.,Hanasaki N.. The effects of afforestation as an adaptation option: A case study in the upper Chao Phraya River basin[J],2020,15(4).
APA	Takata K.,&Hanasaki N..(2020).The effects of afforestation as an adaptation option: A case study in the upper Chao Phraya River basin.Environmental Research Letters,15(4).
MLA	Takata K.,et al."The effects of afforestation as an adaptation option: A case study in the upper Chao Phraya River basin".Environmental Research Letters 15.4(2020).