基于GIS的长白山保护区林地时空变化图制作方法研究

Study on the Method of Making Spatial Temporal Change Map of Forest Land in Changbai Mountain Nature Reserve Based on GIS

以间隔25年的两期长白山保护区土地覆被栅格数据为基础,在ArcGIS10.6软件的支持下,提取出第一期和第二期长白山保护区土地覆被数据,运用转移矩阵模型和净变化量模型,对长白山保护区的土地覆被数据进行处理,研究长白山保护区林地的变化情况。结果表明,林地面积呈现增长趋势,发生转移变化的位置主要集中在研究区的西南和东南部,可以看出该保护区在这25年内林地保护取得了一定的成效。

Based on the grid data of land cover in two phases of Changbai Mountain Nature Reserve with an interval of 25 years,with the support of ArcGIS10.6 software,the first and the second phase data of land cover in Changbai Mountain Nature Reserve were extracted,and the transfer matrix model and net change model were used to process the data of land cover in Changbai Mountain Nature Reserve,so as to study the change of forest land in Changbai Mountain Nature Reserve.The results showed that the woodland area showed a growing trend,and the location of transfer changes was mainly concentrated in the southwest and southeast of the study area.It can be seen that the forest protection of the reserve has achieved certain results in these 25 years.