地理国情监测在生态环境质量综合评价中的应用研究

Application of Geographical Conditions Monitoring in Comprehensive Evaluation of Ecological Environment Quality

利用基础性地理国情监测数据、数字高程模型和中分辨率遥感影像数据完成陕西省县域生态环境质量综合评价数据提取和空间分析。以县级行政区划为单元,选取生物丰度、植被覆盖、水网密度、土地胁迫和污染负荷5个指数,按照生态环境质量综合评价指标体系及评价方法,计算2018年生态环境状况指数(EI),完成生态环境质量评价与分析,该研究成果可为政府提供对策参考。

The comprehensive evaluation data extraction and spatial analysis of eco-environmental quality of counties in Shaanxi Province are completed by using basic geographical conditions monitoring data,digital elevation model and medium-resolution remote sensing image data.Taking county-level administrative divisions as a unit,five indices,including biology abundance,vegetation cover,water network density,land stress and pollution load,were selected.According to the comprehensive evaluation index system and method of ecological environment quality,the ecological environment condition index(EI)in 2018 was calculated to complete the evaluation and analysis of ecological environment quality,the results of this study can provide reference for the government.