Application of ecosystem stability and regime shift theories in ecosystem assessment-calculation variable and practical performance

• Main Authors: Fang, H. (Author), Meng, J.-N (Author), Scavia, D. (Author)
• Format: Article
• Language: English
• Published: Elsevier B.V. 2021
• Subjects: biochemical oxygen demand; Biochemical oxygen demand; Biological oxygen demand; China; Comprehensive assessment; Ecosystem assessment; Ecosystem health; ecosystem management; Ecosystem management; Ecosystem stability; Ecosystems; environmental assessment; Finger Lakes; Health risks; Jiangxi; Lakes; Mathematical ecology; New York [United States]; Onondaga Lake; Poyang Lake; Regime shift; Risk assessment; spatiotemporal analysis; Temporal stability; United States
• Online Access: View Fulltext in Publisher
• ISBN: 1470160X (ISSN)
• DOI: 10.1016/j.ecolind.2021.107529

Assessing ecosystem states quantitatively or qualitatively is important for ecosystem management. Currently, Traditional Comprehensive Assessment (TCA), including ecosystem health, risk, and service assessment is used most often. Ecosystem stability theory (EST) and ecosystem regime shift theory (RST) from mathematical ecology have not been widely used. In this paper, we compare TCA and EST and RST result using two lakes, Onondaga Lake and Poyang Lake, as case studies. We find that biological oxygen demand (BOD) could be a suitable variable to calculate temporal stability and variance indexes in EST and RST, and trend in general. The result could replace TCA when the key lake driver is not too extreme. This recommendation is preliminary, needing validated with data. © 2021 The Authors