气候变化领域集成服务门户(CCPortal): Nonlinear groundwater influence on biophysical indicators of ecosystem services

CCPortal

DOI	10.1038/s41893-019-0278-2
	Nonlinear groundwater influence on biophysical indicators of ecosystem services
	Qiu J.; Zipper S.C.; Motew M.; Booth E.G.; Kucharik C.J.; Loheide S.P.
发表日期	2019
ISSN	2398-9629
起始页码	475
结束页码	483
卷号	2 期号:6
英文摘要	Groundwater is a fundamental control on biophysical processes underpinning essential ecosystem services (ES). However, interactions and feedbacks among groundwater, climate and multiple ES remain less well understood. We investigated groundwater effects on a portfolio of food, water and biogeochemical ES indicators in an urbanizing agricultural watershed. Our results show that food production, water quality and quantity, and flood control are most sensitive to groundwater, with the strongest responses under wet and dry climate extremes. Climate mediates groundwater effects, such that several ES have synergies during dry climate, but trade-offs (groundwater increased some ES but declined others) under wet climate. There is substantial spatial heterogeneity in groundwater effects on ES, which is driven primarily by water table depth (WTD) and is also sensitive to soil texture and land cover. Most ES indicators respond nonlinearly to WTD when groundwater is within a critical depth (approximately 2.5 m) of land surface, indicating that small WTD changes can have disproportionately large effects on ES in shallow groundwater areas. Within this critical WTD, increasingly shallow groundwater leads to nonlinear increases in surface flood risk, sediment erosion and phosphorus yield; nonlinear decreases in drainage to the deep vadose zone and thus groundwater recharge; and bidirectional responses of crop and grass production, carbon storage and nitrate leaching. Our study illustrates the complex role of groundwater in affecting multiple ES and highlights that strategically managing groundwater may enhance ES resilience to climate extremes in shallow groundwater settings. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Economic and social effects; Ecosystems; Flood control; Floods; Quality control; Textures; Water quality; Agricultural watersheds; Biophysical indicators; Biophysical process; Ecosystem services; Fundamental control; Ground water recharge; Shallow groundwater; Spatial heterogeneity; Groundwater
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/163436
作者单位	School of Forest Resources and Conservation, Fort Lauderdale Research and Education Center, University of Florida, Davie, FL, United States; Department of Civil Engineering, University of Victoria, Victoria, BC, Canada; Department of Earth and Planetary Sciences, McGill University, Montreal, QC, Canada; Nelson Institute Center for Sustainability and the Global Environment, University of Wisconsin–Madison, Madison, WI, United States; Department of Civil and Environmental Engineering, University of Wisconsin–Madison, Madison, WI, United States; Department of Agronomy, University of Wisconsin–Madison, Madison, WI, United States
推荐引用方式 GB/T 7714	Qiu J.,Zipper S.C.,Motew M.,et al. Nonlinear groundwater influence on biophysical indicators of ecosystem services[J],2019,2(6).
APA	Qiu J.,Zipper S.C.,Motew M.,Booth E.G.,Kucharik C.J.,&Loheide S.P..(2019).Nonlinear groundwater influence on biophysical indicators of ecosystem services.Nature Sustainability,2(6).
MLA	Qiu J.,et al."Nonlinear groundwater influence on biophysical indicators of ecosystem services".Nature Sustainability 2.6(2019).