气候变化领域集成服务门户(CCPortal): Ecological redline policy may significantly alter urban expansion and affect surface runoff in the Beijing-Tianjin-Hebei megaregion of China

CCPortal

DOI	10.1088/1748-9326/abb4ff
	Ecological redline policy may significantly alter urban expansion and affect surface runoff in the Beijing-Tianjin-Hebei megaregion of China
	Ju X.; Li W.; He L.; Li J.; Han L.; Mao J.
发表日期	2020
ISSN	17489318
卷号	15 期号:10
英文摘要	Urban expansion leads to surface changes that disrupt hydrological processes and increases flooding risks in cities. This increase may be severe in urban megaregions where clusters of cites have agglomerated. The China Ecological Redline Policy (ERP) is a national policy that protects priority areas with high-value ecosystem services. However, it is not clear how the ERP alters megaregion expansion and what this means for surface runoff across entire regions. By integrating specified models, we developed future urban expansion scenarios for 2030 with and without the ERP in the Chinese Beijing-Tianjin-Hebei (BTH) megaregion. The annual surface runoff volume under the ERP scenario decreased by 78 million m3 compared to the non-ERP involved scenario, but the ERP effectiveness at surface runoff regulation was different between the ecological redline areas (ERAs) and the non-ERAs. This suggested that multi-solutions should be incorporated into megaregions, such as regional ERPs and local, nature-based solutions, which could efficiently reduce the risk of urban flooding across whole regions. © 2020 The Author(s). Published by IOP Publishing Ltd
英文关键词	CLUE-S model; Ecological protection redline; L-THIA model; Surface runoff; Urban agglomeration
语种	英语
scopus关键词	Ecosystems; Floods; Runoff; Ecosystem services; Hydrological process; Multi-solutions; National policies; Surface changes; Surface runoff volume; Surface runoffs; Urban expansion; Expansion; expansion; flooding; national planning; risk assessment; runoff; urban area; urban policy; Beijing [China]; China; Hebei; Tianjin
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/153552
作者单位	College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China; State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Urumqi Natural Resources Comprehensive Survey, Center of China Geological Survey, Urumchi, 830057, China; Department of Geosciences, University of Tulsa, Tulsa, OK 74104, United States
推荐引用方式 GB/T 7714	Ju X.,Li W.,He L.,et al. Ecological redline policy may significantly alter urban expansion and affect surface runoff in the Beijing-Tianjin-Hebei megaregion of China[J],2020,15(10).
APA	Ju X.,Li W.,He L.,Li J.,Han L.,&Mao J..(2020).Ecological redline policy may significantly alter urban expansion and affect surface runoff in the Beijing-Tianjin-Hebei megaregion of China.Environmental Research Letters,15(10).
MLA	Ju X.,et al."Ecological redline policy may significantly alter urban expansion and affect surface runoff in the Beijing-Tianjin-Hebei megaregion of China".Environmental Research Letters 15.10(2020).