title: Threshold and resilience management of coupled urbanization and water environmental system in the rapidly changing coastal region.
abstract: The concept of thresholds shows important implications for environmental and resource management. Here we derived potential landscape thresholds which indicated abrupt changes in water quality or the dividing points between exceeding and failing to meet national surface water quality standards for a rapidly urbanizing city on the Eastern Coast in China. The analysis of landscape thresholds was based on regression models linking each of the seven water quality variables to each of the six landscape metrics for this coupled land-water system. We found substantial and accelerating urban sprawl at the suburban areas between 2000 and 2008, and detected significant nonlinear relations between water quality and landscape pattern. This research demonstrated that a simple modeling technique could provide insights on environmental thresholds to support more-informed decision making in land use, water environmental and resilience management.
authors.affiliation: Key Laboratory of Coastal and Wetland Ecosystems (Ministry of Education), College of the Environment and Ecology, Xiamen University, 361102 Xiamen, China. Electronic address: yangf@xmu.edu.cn.
authors.forename: Yangfan
authors.initials: Y
authors.lastname: Li
authors.affiliation: Deparment of Cartography, GIS and Remote Sensing, Institute of Geography, Georg-August University of Goettingen, 37077 Goettingen, Germany; State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Nanjing 210046, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Coastal Sciences, The University of Southern Mississippi Ocean Springs, MS 39564, USA.
authors.forename: Wei
authors.initials: W
authors.lastname: Wu
mesh_terms: D002681:China; D002947:Cities; D003247:Conservation of Natural Resources / Q000379:methods; D008962:Models, Theoretical; D013997:Time Factors; D014507:Urbanization; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry; D060753:Water Quality
chemical_list: D014874:Water Pollutants, Chemical; D014867:Water
keywords: Environmental threshold; Landscape metrics; Rapid urbanization; Resilience management; Water quality