Fish biological integrity index-based cascade development river ecosystem health condition evaluation method

Abstract

The invention provides a cascade development river ecosystem health condition evaluation method based on a fish biological integrity index, and belongs to the field of river ecosystem protection. The invention provides a method for evaluating the health condition of an existing cascade development river ecosystem and the limitation and deficiency of long-term tracking monitoring evaluation of the existing cascade development river ecosystem health condition evaluation method. Comprising the following four parts: a sampling survey method based on fish biological integrity, a basic index system for evaluating the fish biological integrity index, construction of a selection index system for evaluating the fish biological integrity index, and a standard system for evaluating the health condition of the cascade development river ecosystem based on the fish biological integrity index (F-IBI). A clear, complete, detailed and quantifiable evaluation criterion system is provided for carrying out cascade development on the health condition change of the river water ecosystem and carrying out long-term tracking, monitoring and evaluation on the river ecosystem; therefore, a scientific, simple, easy and economical evaluation method is provided for optimizing a river cascade development scheme and carrying out river ecosystem health condition evaluation and fixed-point long-term tracking monitoring.

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