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《Beijing Surveying and Mapping》 2018-10
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Forest Biomass Extraction Based on ZY-3 Remote Sensing Image

GAO Yongming;GAO Chao;Jilin Basic Surveying and Mapping Institute;Beijing Institute of Surveying and mapping;Beijing Key Laboratory of Urban Spatial Information Engineering;  
The investigation of land and resources is an important means for our country to check and ascertain the status of land use and the utilization of land resources.As one of the most important types of land use in our country,forest resources are particularly important in land and resources survey.Taking the Songshan Nature Reserve in Yanqing,Beijing as the research area,the biomass was estimated by using the satellite imagery of ZY-3,and the spectral factor,vegetation factor,topographical factor and texture factor were taken as the factors for inverting the biomass,and the relationships between different factors and forest biomass 10 multivariate modeling factors with high correlation were obtained and the biomass models of the optimal coniferous forest and broad-leaved forest were obtained by multiple linear regression with the precision of 70.3% and 66.8%,respectively,which met the requirements of forest survey accuracy.
【CateGory Index】: S771.8
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