中国农田重金属污染预警系统研究

The Warning System of Heavy Metal Pollution in the Farmland of China

本文分析了农田重金属污染的"物质-驱动力-环境因素"的相互关系,结合中国国情,初步建立了中国农田重金属污染预警系统。它包括:农田重金属污染预警的"天-地-人通用概念模型";国家级、省级综合预警和县级单一预警方法;粮食季单产、耕地人口密度、耕地工业产值三个预警指标;"红橙黄绿青蓝紫"7个警级;省级预警中的工业和经济开发区等标记方法,县级预警中的城郊区、矿山区、污灌区、交通线、污染水体、养殖基地等标记方法;国家级、省级预警实例。研究结果表明:系统适合中国国情;预警方法科学、通用、实用、简单;预警指标符合中国国情和实际,所需数据容易获得。

The relationship of ＂material-driving force-environmental factors＂ in farmland heavy metal pollution was analyzed and warning system of heavy metal pollution in the farmland of China was initial established combined with the situation of China.It contains： ＂ heaven,earth and human universal conception model＂ of farmland heavy metal pollution warning;comprehensive warning method of national level,province level and single warning method of county level;grain yield per unit,farmland population density,farmland industrial output warning indexes;＂all colors of the rainbow＂ 7 warning levels;labeling method for industry and economic development zone et al.in province warning and suburb,mining area,sewage irrigation area,traffic road,polluted water body and breeding base et al.in county warning;warning examples in national level and province level.Results showed that： the system is suitable for Chinese situation;the method of warning is scientific,universal,practical and simple;the index of warning meets the Chinese situation and practice,desired data is easy to obtain.