摘要
利用遥感手段估算三峡库区植被的生物量,综合野外观测数据,分析了Landsat TM数据的光谱信息与植被生物量的关系,通过相关性分析表明Landsat TM多光谱数据能较好地反映该地区的植被生物量水平。然后,利用Landsat TM数据分别建立了针对三峡库区的阔叶林、针叶林、针阔混交林、灌木林和草本植被5种主要植被类型的生物量遥感估算模型,并利用所得模型计算了该区域2002年植被的地上生物量总量为1.05×108Mg。
The method of estimating biomass by remote sensing was studied in this paper.Integrating the field data and remote sensing images,the correlation of Landsat TM data and sample biomass was analyzed.The result shows that the Landsat TM spectral information can reflect the biomass level of the Three Gorges Region.Then Landsat TM is used to build up the biomass calculation model for the main vegetation types in the Three Gorges Region,in which mainly are conifer,hardwood,shrub and herbaceous vegetation.At last,the biomass of the Three Gorges Region in the year of 2002 is calculated using these models.
出处
《遥感技术与应用》
CSCD
北大核心
2009年第6期784-787,I0003,共5页
Remote Sensing Technology and Application
基金
中国科学院知识创新工程重大项目"重大工程生态环境效应遥感监测与评估"(KZCX1-YW-08-01-01)
