县域土地利用动态变化研究——以河南省新郑市为例

根据河南省新郑市2000~2005年土地利用详查数据和变更数据,运用数理统计方法研究该市土地利用结构的动态变化特征,结果表明:新郑市土地利用类型在2000~2005年变化幅度较大,年均变化率达0.75%,总体上呈现耕地、林地、未利用地面积减少和园地、建设用地面积增大的趋势,5年间土地利用类型变化最大的是园地,新郑市土地利用处在发展期。最后,提出合理利用土地资源的建议。

Study on Dynamic Change of Land Use in County District

According to the data of investigation for land resources from 2000 to 2005 in Xinzheng City,dynamics of land use structure was detected with mathematical statistical method.The results showed that the extents of various land use types were large from 2000 to 2005,and the average annual change rate reached 0.75% per year.As a whole,the area of cultivated land,forest land and unutilized land tended to decrease while that of landscape and buildings increased.During the five years,the change extent of landscape was the largest.The land use of Xinzheng City was in the process of development.Some suggestions were presented.