摘要
生态系统在环境条件变化时表现出的剧变或阈值现象是当前生态学研究的热点,但是生态阈值定量检测的困难阻碍了这一主题的研究与应用。本文从典型案例入手,通过分析潜在生态阈值的S型曲线式、补给-压力式和跃迁式驱动-响应机理,归纳了局部加权回归散点平滑法、分段回归、高斯模型、拐点分析软件、稳态转换检测软件、指示种阈值分析和系统动力学仿真模型7种生态阈值确定方法,并评述了其优缺点和适用性,以期为生态阈值的定量分析研究提供方法借鉴。
The drastic changes or threshold phenomena of ecosystems in response to environmental changes are main research focuses in ecology. However, the difficulty in quantitative detection of ecological thresholds hinders the further research progress and application of this topic. Based on typical cases, we analzyed the driving-response mechanism of S-shaped curve type, subsidy-stress type, step type of the potential ecological thresholds. Seven methods to determine ecological thre-shold were summarized, including locally weighted scatterplot smoothing, piecewise regression, Gaussian model, change-point analyzer, regime shift detection, threshold indicator taxa analysis and system dynamics simulation model. The advantages, disadvantages and applicability of those methods were also addressed. This study could provide references for quantitative detection of ecological threshold.
作者
侯利萍
何萍
范小杉
徐杰
任颖
李代魁
HOU Li-ping;HE Ping;FAN Xiao-shan;XU Jie;REN Ying;LI Dai-kui(Chinese Research Academy of Environmental Sciences,Beijing 100012,China;State Environmental Protection Key Laboratory of Regional Ecological Processes and Functions Assessment,Beijing 100012,China;State Key Laboratory of Environmental Criteria and Risk Assessment,Beijing 100012,China)
出处
《应用生态学报》
CAS
CSCD
北大核心
2021年第2期711-718,共8页
Chinese Journal of Applied Ecology
基金
国家重点研发计划项目(2017YFC0506601)
水体污染控制与治理科技重大专项(2017ZX07106004)资助。
关键词
生态阈值
定量检测方法
驱动-响应关系
稳态转换
ecological threshold
quantitative detection method
driving-response relationship
regime shift