题目 Title

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

期刊 Journal

Ecological Indicators (IF=4.958)

作者 Author

Meng, JN; Fang, HW; Scavia, D

摘要 Abstract

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.

简介 Brief introduction

定量或定性地评价生态系统状态对生态系统管理具有重要意义。目前，通常采用传统的综合评价方法，包括生态系统健康、风险和服务评价等。生态系统稳定性理论和生态系统状态转移理论是数学生态学中的两个理论，并没有在生态系统评价中得到广泛应用，且少有人讨论计算变量的选取问题。本文以美国奥农达加湖和鄱阳湖为研究对象，比较了传统综合评价方法、生态系统稳定性理论以及生态系统状态转移理论的评价结果。我们发现生物需氧量(BOD)存在潜力作为一个合适的变量来计算生态系统稳定性和状态转移指标，用来判断生态系统变化的总体趋势，当生态系统的关键驱动因子不极端时，可用来替代传统的综合评价方法，简化评价流程。这一初步发现需要进一步的数据验证。

扫码关注立方体公众号，实时追踪课题组最新科研进展