基于栅格尺度的景谷县思茅松林土壤碳库空间格局模拟与估测  

Simulation and Estimation of Pinus kesiya Forest Soil Carbon Pools in Jinggu County Based on Grid-scale Spatial Pattern

作　　者：戴柔毅[1] 周汝良[1] 赵南[1] 李俊[1] 

机构地区：[1]西南林业大学林学院,云南昆明650224

出　　处：《安徽农业科学》2012年第25期12479-12480,12535,共3页Journal of Anhui Agricultural Sciences

基　　金："十一五"国家科技支撑计划课题(2008BAD95B09)

摘　　要：采用来自于中国科学院科学数据库提供的SRTM数据和美国陆地卫星7号(即Landsat-7)遥感数据,结合直接估算和间接估算的优点,以30 m的栅格为地面单元,模拟和表达地面立地条件和森林分布的连续变化,实现土壤碳库的精细化估测。利用SPSS对导出的数据进行处理,分析地表土壤有机碳含量与年均温、年平均降水量、NDVI、坡度、坡向、坡位及DEM数字高程之间的统计关系,拟合出土壤有机碳的估算模型,并以此来进行思茅松土壤有机碳储量的统计计算。According to the SRTM（Shuttle Radar the Topography Mission） data provided by Chinese Academy of Science and the Landsat-7 remote sensing data,as well as the advantages of direct estimates and indirect estimates,the raster with tens of meters was used for ground units to simulate and express the continuous change of the ground site conditions and the distribution of forests,and realize the refinement of soil carbon pool estimation.Using SPSS for processing the exported data,the statistical relationships betweens surface soil organic carbon content and mean annual temperature,and among the average annual rainfall,NDVI,slope,aspect,slope position and DEM digital elevation were analyzed,a soil organic carbon estimation model was fitted to carry out the statistical calculations of Pinus kesiya var.langbianensis soil organic carbon storage.

关 键 词：遥感 土壤碳库 思茅松 植被指数 

分 类 号：S127[农业科学—农业基础科学]