500米分辨率2000-2024逐年EQI数据集

本数据集基于《HJ 1172-2021》国家标准，生成了2000-2024年中国陆域500米分辨率的逐年生态系统质量指数（EQI）。通过反演植被覆盖度、叶面积指数和总初级生产力三个关键参数，并分区、分生态系统类型计算相对密度后合成EQI，最终将生态系统质量划分为优、良、中、低、差五个等级。

This dataset was developed in accordance with the national standard HJ 1172-2021, and produced the annual Ecosystem Quality Index (EQI) with 500-meter resolution for the terrestrial territory of China from 2000 to 2024. First, three key parameters, namely fractional vegetation cover, Leaf Area Index (LAI) and Gross Primary Productivity (GPP), were retrieved via remote sensing inversion. Subsequently, relative densities were calculated by regional divisions and ecosystem types, and the EQI was synthesized based on these calculated results. Finally, the ecosystem quality was classified into five grades: excellent, good, moderate, low and poor.

搜集汇总

背景与挑战

背景概述

本数据集基于《HJ 1172-2021》国家标准，生成了2000-2024年中国陆域500米分辨率的逐年生态系统质量指数（EQI）。它通过反演植被覆盖度、叶面积指数和总初级生产力三个关键参数，分区、分生态系统类型计算相对密度后合成EQI，最终将生态系统质量划分为优、良、中、低、差五个等级，提供了长期、高精度的生态系统质量监测数据。