摘要
以黔中喀斯特山地城市贵阳市为研究对象,选取2005年度、2017年度两期林地数据,结合ArcGIS和Fragstats软件,依据景观生态学原理分析森林景观在不同城市开发强度下景观格局指数动态变化情况。结果表明,贵阳市林地基本由森林斑块构成,且近12年来面积处于扩张趋势,森林斑块逐渐集中连片,斑块间连通性不断增强,形状趋于复杂,景观破碎度下降;从城市外围区、城市规划区、中心城区到建成区,随城市开发强度的加大,区域森林景观连通性不断变差,说明森林景观格局的变化与城市开发强度关系紧密。
Taking Guiyang City in Karst mountainous urban of Central Guizhou as the research object,we selected two forest land data of 2005 and 2017,combined ArcGIS and fragstats software to analyze the dynamic change of landscape pattern index under different city development intensities based on the theory of landscape ecology.The results showed that the forest land of Guiyang City was basically composed of forest speckle,and the area was increasing in the past 12 years.The forest speckle was gradually concentrated,the connectivity between patches was increasing,the shape was complicated,and the landscape fragmentation was decreasing.From the outskirts of cities,urban planning areas,central urban areas to built-up areas,with the increase of urban development intensity,regional forest landscape connectivity continued to deteriorate,indicating that the changes in forest landscape patterns are closely related to the intensity of urban development.
作者
吴际通
颜伟
霍达
WU Ji-tong;YAN Wei;HUO Da(Forest Resources and Management Station of Guiyang,Guiyang,Guizhou 550003;Guizhou Academy of Forestry,Guiyang,Guizhou 550005)
出处
《安徽农业科学》
CAS
2020年第10期99-101,108,共4页
Journal of Anhui Agricultural Sciences
基金
贵州省林业厅项目(黔林科合〔2017〕15号)
贵州省林业厅项目(黔林科合〔2017〕16号)
贵州省基础研究计划项目(黔科合基础〔2017〕1097)。
关键词
喀斯特山地城市
森林景观
城市开发强度
Karst mountainous urban
Forest landscape
Urban development intensity
作者简介
吴际通(1986—),男,河北故城人,工程师,硕士,从事森林生态学研究。
