农用地环境质量评价与类别划分方法研究

梳理了我国现行标准中有关农用地环境质量评价与类别划分所采用的技术方法,并探讨了发达国家所采用的技术方案。结果表明,我国现行农用地环境质量评估方法以指数法为主,评估方法多集中在监测点环境质量评价上,区域环境质量评价方法虽有涉及,但可操作性差,距离发达国家相关研究还存在差距。在此基础上,从数据支撑、方法选择、保护目标设定等3个方面探讨了我国农用地环境质量类别划分存在的问题及改进建议。

Technical Analysis of Evaluation and Classification of Farmland Environmental Quality

In this paper, methods used in evaluation and classification of farmland environmental quality in the existing national standards were studied, and corresponding technical plans adopted by the developed countries were also discussed. The results showed that index method was the main method to evaluate the environmental quality of agricultural lands in China, with focus on environmental quality assessment of monitoring points. Regional environmental quality assessment was involved but with poor operability as well as a gap compared to the relative standards stipulated in the developed counties. Then, defects existing in the category classification of farmland environmental quality in China were discussed from the aspects of data support, method selection and protection goal setting and suggestions of improvement were proposed accordingly.