T/GZQXXH 0001-2024 Active Group standards

T/GZQXXH 0001-2024 Regional Ecosystem Quality Evaluation Technical Specification

Publish Date: 2024-12-26 Implement Date: 2025-01-10 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GZQXXH 0001-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Geology, meteorology, and hydrology

Publish Date: 2024-12-26

Implement Date: 2025-01-10

Scope

Scope: This document specifies the terms and definitions of ecosystem quality, regional ecosystem quality evaluation indicators, and calculation methods, etc. This document is applicable to the comprehensive evaluation of ecosystem quality in different regions of provinces, cities, and counties; Main technical content: The evaluation of ecological quality status uses an ecological quality index (EFQI) based on ecosystem functions to quantify the multifunctionality of ecosystems, including the roles of supporting, maintaining, and regulating functions, reflecting the regional ecological quality status. Seven indicators based on three levels of ecosystem functions are selected as candidate indicators for evaluating the ecological quality of terrestrial ecosystems (see Appendix A). The indicator system includes total primary productivity and water storage index under the ecosystem supporting function, Bowen ratio, surface temperature, and water use efficiency under the ecosystem regulating function, and leaf area index and normalized vegetation index under the ecosystem maintaining function. Using a probability-based historical benchmark evaluation method, the ecological quality of the regional ecosystem is evaluated from the perspective of the ecosystem. The evaluation results of the regional ecosystem quality are calculated using the "Ecosystem Ecological Quality Index Calculation System Based on Ecosystem Service Functions" software.