河南省东北部农用地健康评价

Assessment on the Health of Agricultural Land in the Northeastern Part of Henan Province

研究目的:基于土地生态健康评价原理,选取土地肥力和相关污染指标对土地健康进行评价,为区域土地利用提供依据。研究方法:以河南省东北部为例,通过对研究区内土地质量样点实验分析,得到土地肥力和污染物相关指标实验数值,以此为依据计算土地健康综合指数,并给予相应的评价。研究结果:研究区土地质量综合指数居中等以上,土地健康状态良好。研究结论:研究区土地健康综合评价指标较为合理地反映了土地利用、经济布局与资源环境承载力,能够为区域可持续发展提供指导。

The purpose of this paper is to discuss the idea of taking land fertility and pollution metrics as standards to assess the health of farmland based on the principle of land ecological health assessment,aiming to provide reference for regional land use.The paper selects three counties in northeastern part of Henan Province as examples.The integrated agricultural land health is determined by the experimental data of soil fertility and pollution metrics.The results indicate that the agricultural land health quality is at the middle and upper level.It is concluded that the agricultural land health assessment can clearly reflect the relationship between changes in land use and social economic development.It can further accelerate the compatibleness among land use,economic zoning,and carrying capacity of resources and environment,and also enhance the sustainable development ability.