Analysis of Forest Resource Change in Maoer Mountain Forest Farm Based on GIS
This paper,based on the forest map of Maoer Mountain in 1983 and forest inventory sub-compartment database of Maoer Mountain in 2004,and with the support of geographical information system (GIS),presents the results of study of forest resource change in the periods,which reflected the change of forest type spatial distribution.Furthermore,this study focuses on the construction and present situation of dynamic forest resource by overlaying the forest resource distribution with DEM in which the vectorization of topographical maps was made by using the vector data for creating the digital elevation model (DEM).The results demonstrate that the area of study region decreased to 216 hm2;and the area of open forest land,new afforestation,non-standing forest,farmland and wetland were decreased;the area of forest land,rivers and lakes,agricultural land and the road land are increasing.Meanwhile,it also indicts that the construction of forest resources was not reasonable,in which the proportions of midlife and near-mature forest are larger,the stocks of midlife and near-mature forest increases,and the stock of mature forest decreased greatly.Finally,the study focuses on the forest resource spatial distribution by overlay analysis combined DEM with forest resources construction,which aimed to adjust the current unreasonable situation for the sustainable management of forest resources in the future.
forest resource change digital elevation model (DEM) overlay analysis GIS
Tie Dong Liu Wen Feng Gong Wei Hong Wang
College of Landscape,Northeast Forestry University,Harbin,150040,China College of Hydraulic and Electrical Engineering,Heilongjiang University,Harbin 150086,China Life Science College,Northeast Forestry University,Harbin,150040,China
国际会议
哈尔滨
英文
1250-1255
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）