红枫湖流域森林景观格局尺度效应敏感性研究  

Scale Effect Sensitivity of Forest Landscape Patterns in Hongfeng Lake Watershed

作　　者：王涛 禄鑫 肖彩霞 WANG Tao;LU Xin;XIAO Caixia(Guizhou Forestry Survey and Design Co.,Ltd.,Guiyang 550003,China;Guizhou Forestry Survey and Planning Institute,Guiyang 550003,China)

机构地区：[1]贵州林业勘察设计有限公司,贵州贵阳550003 [2]贵州省林业调查规划院,贵州贵阳550003

出　　处：《林业调查规划》2019年第4期81-88,共8页Forest Inventory and Planning

基　　金：贵州省林业厅2018年度林业优秀青年人才培养专项资金项目“基于遥感植被指数的贵州省马尾松林松材线虫病遥感监测技术”

摘　　要：基于红枫湖流域第四次森林资源二类调查数据,通过重采样得到不同空间粒度的流域景观数据,在Fragstats软件中计算得到不同粒度和幅度下的景观格局指数值,通过绘制景观水平和景观类型水平2个层面的景观指数尺度效应曲线,量化分析了流域森林景观格局尺度效应,并对流域森林景观格局尺度效应的敏感性特征进行初步探讨。结果表明:1)红枫湖流域森林景观格局具有明显的粒度和幅度效应;2)景观水平指数随粒度变化均表现为较强的敏感性,景观类型指数随粒度变化反映为差异显著的敏感性特征;3)多数景观格局指数在10km幅度范围出现明显的尺度转折点,敏感性较强,大于10km幅度范围后逐渐趋于平稳,敏感性减弱。Based on the data of the fourth forest resources survey in Hongfeng Lake Watershed,the landscape data of different spatial grain size were obtained by re-sampling method.The landscape pattern index values were calculated by Fragstats software.The scale effect of forest landscape pattern in the basin was quantitatively analyzed by plotting the scale effect curve of landscape index at landscape level and landscape type level,and the sensitivity characteristics of scale effect of forest landscape patterns was preliminary studied in this paper.The results showed that the landscape indexes were sensitive to the variance of grain size and rang size,that the landscape level index showed strong sensitivity with the change of grain size,and the patch type level index showed significant sensitivity with the change of grain size,and that the sensitivity of landscape index to the rang change was generally strong within the range of 10 km,with the increase of the rang,the sensitivity gradually decreased.

关 键 词：森林景观 尺度效应 景观格局 粒度 幅度 敏感性 红枫湖流域 

分 类 号：S718.542[农业科学—林学] Q149[生物学—生态学]