内蒙古生态用地时空演变过程及其影响因素分析

Spatiotemporal Evolution of Ecological Land in Inner Mongolia and Its Influencing Factors

以内蒙古1990年、2000年、2010年和2018年四期土地利用数据为基础,利用其空间分析和数学模型剖析了生态用地的时空变化过程。研究结果表明:研究时段内生态用地面积在数量上呈现持续减少趋势,净减少了5611.23 km2;该区生态用地总面积动态度变化不大,基本保持在稳定的水平,但生态用地内部变化较为剧烈,各类生态用地动态变化的相对值依次为耕地>草地>其他用地>林地>水域;区域生态用地变化在空间上具有显著的差异性,大部地区呈现负增长趋势,东部与中部地区尤为明显,全区仅有巴彦淖尔市的生态用地数量呈正增长趋势。同时该研究对推动生态用地演变的驱动力因素做了宏观性分析,可为今后内蒙古有效利用生态用地提供方向,进而可以合理有序地编制该区国土空间规划和国土空间生态修复等工作。

Based on the land use data of Inner Mongolia in 1990,2000,2010 and 2018,the spatial analysis and mathematical model were used to analyze the temporal and spatial change process of ecological land.The results showed that the ecological land area in the study period showed a continuous decreasing trend,with a net decrease of 5611.23 square kilometers.The dynamic degree of the total area of ecological land in this area has little change,and basically remains at a stable level,but the internal change of ecological land is more dramatic.The relative value of dynamic change of various types of ecological land is like:cultivated land>grassland>other land>woodland>water area.The change of regional ecological land has a significant difference in space,and most of the areas show a negative growth trend,especially in the eastern and central regions.Only Bayannaoer City has a positive growth trend.This paper makes a macro analysis of the driving factors of promoting the evolution of ecological land,which can provide directions for the effective use of ecological land in Inner Mongolia in the future,and then reasonably and orderly work out the land space planning and land space restoration in this area.