科尔沁沙地林地适宜性评价——以科尔沁左翼后旗为例

Evaluation on Forestry Suitability in the Horqin Sandy Land——A Case Study in Horqinzuoyihouqi Banner

研究基于2009年遥感影像数据和反映该研究区自然、社会、经济方面的资料,通过3S技术、数学统计方法及文献资料法,并多次叠加与对比分析,得到研究区林地适宜性评价结果,并进一步将林地适宜性评价结果与2009年林业现状进行对比分析。结果表明:高度适宜林地面积为287 233.56hm2,中度适宜林地所占面积比重最大,达484 501.09hm2,勉强适宜林地面积为307 407.94hm2,不适宜林地面积为10 523.10hm2。因此,今后还需要加大力度,调整林地利用结构的面积为295 436.20hm2。

Based on the remote sensing image in 2009 and the data reflecting nature,society and economy of the study area,unit map and last map of woodland suitability were obtained through the 3S technology,mathematical statistic methods,multiply superimposing and comparatively analysis.And the evaluation result of woodland suitability was analyzed and further compared with the woodland condition in 2009 in order to provide basis for the further sustainable development of woodland.The results showed that the area of the highly suitable,the medium suitable,the margin suitable and unsuitable forest land in the study area are 287 233.56 hm2,484 501.09 hm2,307 407.94 hm2 and 10 523.10 hm2,respectively.The woodland area needed to be improved in the future was 295 436.20 hm2.And the structure of land use need to be intensified and adjusted.