摘要
会泽县作为长江中上游金沙江流域城市代表,其土地利用景观格局变化对区域生态保护和社会发展具有重要意义。选择会泽县2006年和2020年林地利用矢量数据作为基础,利用Arcgis、Envi和Fragsats软件分析了该地区2006~2020年间土地景观格局动态变化特征。结果表明:2006~2020年间,从景观类型变化上看,有林地、建设用地和水域面积增多,农地、宜林地、草地面积减少;建设地、灌木林、宜林地斑块变化速度较快,农地、林地、草地和水域相对稳定。从景观格局特征上看,景观的聚集程度、延展性和连通性减弱,分布离散性增加,将不利于生态功能和生态系统稳定性的发挥。
As a representative of cities in the Jinsha River Basin in the middle and upper reaches of the Yangtze River, it is of great significance to study the change of land use landscape patterns in Huize County for regional ecological protection and social development. Based on the forest land use vector data of Huize County in 2006 and 2020, the dynamic change characteristics of land landscape patterns from 2006 to 2020 were analyzed by using ArcGIS, Fragsats and Envi. The results showed that from 2006 to 2020, the area of forest land, construction land and water area increased, while the area of agricultural land, suitable forest land and grassland decreased;The patches of construction land, shrub forest and suitable forest land change rapidly, while the agricultural land, forest land, grassland and water area are relatively stable. From the perspective of landscape pattern characteristics, the aggregation degree, ductility and connectivity of landscape decreased, and the dispersion of distribution increased, which will not be conducive to the exertion of ecological function and ecosystem stability.
作者
彭兴松
马娟
Peng Xingsong;Ma Juan(Forestry and Grassland Bureau of Huize County,Huize,Yunnan 654200,China)
出处
《绿色科技》
2022年第4期197-200,204,共5页
Journal of Green Science and Technology
关键词
景观格局
转移矩阵
破碎化
会泽县
landscape patterns
transfer matrix
fragmentation
Huize County
