1998-2010年五指山市土地利用景观格局变化分析  

Changes of Land Use and Landscape Pattern in Wuzhishan During 1998-2010

作　　者：张利利[1] 佘济云[1] 李锐[1] 程玉娜[1] 

机构地区：[1]中南林业科技大学,湖南长沙410004

出　　处：《西北林学院学报》2016年第1期221-225,249,共6页Journal of Northwest Forestry University

基　　金：国家林业公益性行业项目"南方集体林区次生林抚育间伐与高效利用技术研究"(201004032);海南省林业厅重点科研项目"海南省五大湖河流域植被恢复与保护研究"(LK20118478);湖南省"十二五"重点学科-森林经理学科(034-0014)

摘　　要：以五指山市为研究区域,利用五指山市五指山1998、2003、2007、2010年4期遥感影像为数据源,对遥感图像进行解译,得到4期五指山市土地利用数据,借助RS和GIS技术,利用转移矩阵以及土地利用动态度模型分析了五指山市1998-2010年间的土地利用景观格局变化。结果表明:林地景观斑块类型在整个五指山市的景观中占主导地位,是五指山市的优势景观;1998-2010年期间五指山市土地利用变化显著,主要表现为:农地、林地、未利用地均呈增加趋势,草地、建设用地减少,水域变化不大;各土地类型间转化突出表现为牧草地、建设用地的转出,林地和农地的转入,1998-2003年期间牧草地急剧减少,93.90%的牧草地转化为林地;土地利用景观破碎度增加,多样性减弱,优势度上升,景观中各斑块类型面积比重趋向不均衡。研究五指山市土地利用和景观格局变化,可为五指山市景观格局的优化以及生态城市建设提供参考。Land use information of Wuzhishan was extracted from the remote sensing images in the years of 1998,2003,2007,2010. Using RS and GIS technologies,changes of land use and landscape pattern were an- alyzed by transfer matrix and land use dynamic degree model during 1998--2010. The results show that： woodlands were the main landscape types and they constituted the dominant landscape in the region. During 1998--2010, significant changes occurred in land use.. agricultural land, forest land and unused land in- creased,grassland and construction land decreased, no significant changes were observed in waters. The conversion of land use among different land types manifested by the transferring out of construction land and transferring in of forest and agricultural lands; pastures drastically reduced during 1998--2003,93. 90% of grassland converted to forest land. Landscape fragmentations increased, diversity decreased, and dominance increased. The area proportions of different landscape patches were not balanced. Woodland landscape patche dominated the landscape of the entire area. The results would provide references to the landscape pattern optimization in Wuzhishan and the construction of eco-city.

关 键 词：土地利用 景观格局 动态变化 五指山市 

分 类 号：S731.2[农业科学—林学]