水稻种植区农业面源污染时空扩散特征研究

Analysis on Spatiotemporal Diffusion Characteristics of Agricultural Non-point Source Pollution in Rice Planting Areas

为实现中国农业健康的平稳发展,文章提出水稻种植区农业面源污染时空扩散特征分析方法。首先分析水稻种植区农业面源污染特性,包括分散性、隐蔽性以及随机性、不确定性;其次分析了水稻种植区农业面源污染在当前时代背景下的主要影响因素,包括农药化肥污染、农村生活污染及水稻秸秆污染。最后分析中国水稻种植区农业面源污染时序扩散特征及空间扩散特征。通过分析可知,该方法可以促进农业经济健康快速发展,水稻种植区农业面源污染排放总量呈现出由北向南逐渐减弱的趋势,直到出现负增长后又发生反弹。

In order to achieve the healthy and stable development of agriculture in China,a method for analyzing the spatial and temporal diffusion characteristics of agricultural non point source pollution in rice planting areas has been proposed.Firstly,the characteristics of agricultural non point source pollution in rice planting areas were analyzed,including dispersion,concealment,randomness,and uncertainty.Secondly,the main influencing factors of agricultural non-point source pollution in rice planting areas under the current era background were analyzed,including pesticide and fertilizer pollution,rural living pollution,and rice straw pollution.Finally,the temporal and spatial diffusion characteristics of agricultural non-point source pollution in rice growing areas in China were analyzed.The results show that this method could promote the healthy and rapid development of agricultural economy,and the total amount of agricultural non-point source pollution emissions in rice planting areas shows a trend of gradually weakening from north to south,until negative growth followed by a rebound.