摘要
利用遥感和地理信息系统技术对长白山林区抚松和安图县1986、1995、2000年3个时期的土地利用类型和森林景观及其变化进行定量分析,并引入平均周长面积比、相对聚集度、斑块密度和周长面积分维数景观指数对该地区的景观格局进行了分析。海拔、坡度等自然因素对山区的土地利用和景观格局及其变化产生非常明显的影响,受人类影响程度较大的耕地、城乡工矿居民用地等土地利用类型主要集中在海拔较低和坡度较小的区域,而且变化幅度较大的几种土地利用类型也主要集中在海拔较低和坡度较小的区域范围内。作者认为人类活动和国家政策的影响是研究区土地利用和景观格局变化的主要和直接因素,土地利用更加注重经济和生态效益相结合,后期的择伐代替皆伐等采伐方式、封山育林、生态省建设政策的实施和森林分类经营管理方式,有效地保护了研究区的森林资源和景观生态。
Based on Remote sensing and Geographic information system,this paper quantified analyzes the land use and the change of Antu and Fusong counties in Changbai Mountain forest areas of 1986,1995,2000 years,and carries on the analysis of the landscape pattern and the changes by introducing mean perimeter area ratio,relative contagion,patch density and perimeter-area fractal dimension four indexes.Natural factors of elevation and slope make much influences on the mountainous land use and landscape patterns.Farming,city,countryside,industry and inhabitant lie mainly in the low elevation and slope areas,and also the dynamic changing of the land use types.The author considers that human activities and national policy influences are the main and direct reasons of Changbai Mountain land use and landscape pattern changes,much more attention is being paid to the economy and the ecology benefit unification in the land utilization.The later period national polices,like selective felling replaces all-cut-down and some other felling mode,closing off hillsides felling for afforestation,the ecological province construction policy and the forest classified management,have protected effectively the Changbai Mountain area forest resources and landscape ecology.This paler provides the references for the optimal land use structure and the sustainable forest landscape management.
出处
《农业系统科学与综合研究》
CSCD
2010年第4期431-437,共7页
System Sciemces and Comprehensive Studies In Agriculture
基金
国家自然科学基金项目(40771146)
中国科学院东北振兴科技行动计划重点项目(DBZX-2-030)
关键词
长白山
森林
土地利用
景观
Changbai Mountain
forest
land use
landscape
