扎鲁特旗土地利用变化及其驱动力分析

Change in Land Use/Cover and Its Driving Force in Zhalute.

利用 1988年和 1997年的TM影像数据 (覆盖范围主要包括扎鲁特旗行政辖区的中部低山丘陵区和南部倾斜冲积平原区的 2 0个苏木 ) ,通过计算扎鲁特旗 1988年至 1997年间土地利用转移矩阵 ,分析了该区域近 10a来土地利用 /覆盖的时空变化规律 ,并进而探究了导致该变化发生的自然、人文驱动因素。结果表明 :在 1988年至 1997年间 ,该区域林地和草地大面积减少 ,耕地大面积增加 ,土地沙化和盐碱化现象严重。探其原因主要是由社会、经济等人文因素造成 。

The study on regional land use/cover is now the main topic of the research on current change in land use/cover.Based on the TM data of 1988 and 1997 and through computation of the transition matrix of land use between 1988 and 1997 in Zhalute,temporal spatial characteristics of the change are analyzed.Further,the main driving forces of the change are identified.Results showed that the land use/cover changed greatly during the period as a result of socio economic factors.Biophysical factors were, however, only the context.