Simulation of leaf area index and biomass at landscape scale

编号 zgly0000311023

文献类型 期刊论文

文献题名 Simulation of leaf area index and biomass at landscape scale

学科分类 220.1060;森林生态学

作者 ZHANGNa  YUGuirui  YUZhenliang  ZHAOShidong 

作者单位 DempartmentofEarthScience  GraduateSchool  CAS  Beijing100039  China 

母体文献 Journal of Geographical Sciences;地理学报: 英文版 

年卷期 2003,13(2)

页码 139-152

年份 2003 

分类号 Q948.2  TP79 

关键词 长白山  地形  分析模型  生物量  植被类型  遥感  土地测量 

文摘内容 The method for simulating the temporal and spatial distribution patterns of leaf area index (LAI) and biomass at landscape scale using remote sensing images and surface data was discussed in this paper,The procedure was:(1) annual maximum normalized difference vegetation index (NDVI) over the landscape was calculated from TM images;(2) the relationship model between NDVI and LAI was built and annual maximum LAI over the landscape was simulated;(3) the relationship models between LAI and biomass were built and annual branch ,stem ,root and maximum leaf biomass over the landscape were simulated;(4) spatial distribution patterns of leaf biomass and LAI in different periods all the year round were obtained.The simulation was based on spatial analysis module GRID in ArcoInfo software ,The method is laso a kind of scaling method from patch scale to landscape scale ,A case study of Changbai Mountain Nature Reserve was dissertated ,Aalysis and primary validation were carried out to the simulated LAI and biomass for the major vegetation types in the Changbai Mountain in 1995。