土地利用生态健康动态评价方法及应用研究

Research on the Land Use Ecological Health Dynamic Evaluation and Application

土地利用模式直接影响着生态系统的健康,开展土地利用生态健康评估,对于促进土地资源的可持续利用具有现实意义。基于马尔可夫理论(Markov)构建了土地利用转化模型,经筛选确定了19项指标,构成土地利用生态健康评价指标体系。提出了土地利用转化生态健康影响的动态评价方法。以河南省卫辉市为例,对土地利用的生态健康进行评价。结果表明,从2010到2020年,土地利用转化主要集中于7种类型,以农耕地、住宅、工业用地和果林用地为主。2010年属于健康的生态类型面积占总评价面积的40.51%,2020年属于健康的生态类型面积占总评价面积的36.20%,生态健康对比下降了6.31%。研究结果对于改善土地利用生态健康,促进经济社会可持续发展具有参考价值。

The land use mode directly affects the health of the ecosystem.The ecological health evaluation of land use is of practical significance to promoting the sustainable land resources utilization.This paper applies the Markov theory to construct the land use conversion matrix.19 indexes are selected to construct evaluation index system for land use ecological health.A dynamic evaluation method is put forward.Taking Weihui County,Henan Province as an example,the evaluated results show that from 2010 to 2020,land use and transformation is mainly concentrated in 7 types,i.e.agricultural,residential,industrial,fruit and forest land use.The health ecological types accounted for 40.51%and 36.20%of the total evaluated area both in 2010 and 2020 respectively,which decreased by 6.31%with the comparison of two periods.The results have certain reference value for improving land ecological health and promoting local sustainable economic and social development.