江西省水污染物排放结构组成及空间分布研究

Study on the Composition and Spatial Distribution of Water Pollutant Emission Structure in Jiangxi Province

本研究在实地调查数据基础上,结合GIS技术,通过构建10 km×10 km水污染物空间排放图等方式,以行政区划为分割模块,探索分析水污染物排放结构组成和空间分布。结果表明,江西省水污染物排放以农业源和生活源为主,工业源占比不超过20%;影响水污染物排放的重要因素是人口数量,单位空间面积下人口密度较高的地区水污染物排放强度也相应较高,污染物排放集中于人口密集、工业和农业较为发达的地区。

Based on the field survey data,combined with GIS technology,this study explores and analyzes the structural composition and spatial distribution of water pollutant discharge by constructing a spatial discharge map of water pollutants of 10 km×10 km,and using administrative division as a segmentation module.The results show that the discharge of water pollutants in Jiangxi Province is mainly from agricultural sources and domestic sources,and industrial sources account for less than 20%.An important factor affecting the discharge of water pollutants is the number of people,and the discharge intensity of water pollutants in areas with higher population density per unit space area is correspondingly higher,and pollutant discharge is concentrated in areas with dense population and more developed industry and agriculture.