贵州省2011～2015年林地利用变化分析——以贵阳市白云区、普定县和施秉县为例

Analysis of Changing of forest land use in Guizhou Province from 2011 to 2015——A Case Study of Baiyun District,Puding county and Shibing County of Guiyang City

根据贵州省贵阳市白云区、普定县和施秉县三个县级单位2011年林地落界、2015年林地年度变更成果,分别利用单一土地利用类型动态度、地类的变化量和土地利用转移矩阵等方法从多个角度分析5年间各种地类变化情况。结果表明:白云区非林地转入林地1784.6公顷,林地转出为非林地578.6公顷,5年间林地净增加面积为1206公顷;普定县非林地转入林地9266.6公顷,林地转出为非林地843.2公顷,5年间林地净增加面积为8423.4公顷;施秉县非林地转入林地184.9公顷,林地转出为非林地964.2公顷,5年间林地净增加面积为-779.3公顷。

Based on the results of the forest land boundary in 2011 and the annual change of forest land in2015 in Baiyun District,Puding county and Shibing County of Guiyang Guizhou province,this paper analyzed the changes of various types of land in the past 5 years from various angles by means of the single land use type dynamic degree,amount of various types of land change and land use transfer matrix respectively. The results showed that there were 1784. 6 hectares non-forestland transferred to forest land,578. 6 hectares forest land turned out to non-forestland,and the net increase area of forest land was 1206 hectares in the last 5 years in Baiyun District; There were 9266. 6 hectares non-forestland transferred to forest land,843. 2 hectares forest land turned out to non-forestland,and the net increase area of forest land was 842. 4 hectares in the last 5 years in Puding County; There were 184. 9 hectares non-forestland transferred to forest land,964. 2 hectares forest land turned out to non-forestland,and the net increase area of forest land was-779. 3 hectares in the last 5 years in Shibing County.