Characterizing the spatiotemporal response of runoff to impervious surface dynamics across three highly urbanized cities in southern China from 2000 to 2017

doi:10.1016/j.jag.2021.102331

	Characterizing the spatiotemporal response of runoff to impervious surface dynamics across three highly urbanized cities in southern China from 2000 to 2017
	Liu, Kai 1,2; Li, Xueke 3; Wang, Shudong 1
刊名	INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
	2021-08-01
卷号	100 页码:14
关键词	Urbanization impact Runoff regime Hydrologic model Percentile analysis Remote sensing Impervious surfaces Spectral mixture analysis
ISSN号	1569-8432
DOI	10.1016/j.jag.2021.102331
通讯作者	Wang, Shudong(wangsd@radi.ac.cn)
英文摘要	Urbanization affects the regional hydrological cycle, but quantitative assessment of the hydrological regime in regions of high urbanization remains unexplored. This study investigates the response of runoff to impervious surface area (ISA) dynamics across three highly urbanized cities in southern China. The Soil Conservation Service Curve Number hydrologic model is modified by coupling the 1-km high-resolution calibrated precipitation data and 250-m-resolution percentages of remotely sensed land cover. Results demonstrate that runoff metrics increase noticeably during 2000?2017 at the city scale, with larger (smaller) magnitudes observed for high-flow (low-flow) runoff metrics. Runoff trend variations are more pronounced during high-flow seasons and are remarkable over land surfaces. Analyses of linear regression and generalized additive models indicate that ISA changes account for 23?27% of the total variance of increased runoff. The ascending trend of runoff is not affected substantially by the slight decrease in ISA during 2014?2017, which is attributed to the combined influence of land cover changes and climate. At the subwatershed scale, changes in ISA explain 17% of runoff variations. The runoff regime is more (less) responsive at the high (low) ISA percentage, and one threshold indicative of substantial modification to runoff is detected in the ISA percentage. Overall, runoff responses identified in the spatiotemporal analysis underscore the importance of monitoring and assessing the hydrological regime in southern China as urbanization progresses.
资助项目	Natural Science Foundation of China[41671362]
WOS关键词	LAND-USE CHANGES ; RIVER-BASIN ; FREQUENCY-ANALYSIS ; MIXTURE ANALYSIS ; IMPACT ; CATCHMENT ; SATELLITE ; MODEL ; PRECIPITATION ; RAINFALL
WOS研究方向	Remote Sensing
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000647797000001
资助机构	Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162526]
专题	中国科学院地理科学与资源研究所
通讯作者	Wang, Shudong
作者单位	1.Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100094, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Brown Univ, Inst Brown Environm & Soc, Providence, RI 02912 USA
推荐引用方式 GB/T 7714	Liu, Kai,Li, Xueke,Wang, Shudong. Characterizing the spatiotemporal response of runoff to impervious surface dynamics across three highly urbanized cities in southern China from 2000 to 2017[J]. INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION,2021,100:14.
APA	Liu, Kai,Li, Xueke,&Wang, Shudong.(2021).Characterizing the spatiotemporal response of runoff to impervious surface dynamics across three highly urbanized cities in southern China from 2000 to 2017.INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION,100,14.
MLA	Liu, Kai,et al."Characterizing the spatiotemporal response of runoff to impervious surface dynamics across three highly urbanized cities in southern China from 2000 to 2017".INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION 100(2021):14.