文献类型：会议论文

英文题名：Forest stand volume estimation using airborne LiDAR and polarimetric SAR over hilly region

作者：Fan, Fengyun[1] Chen, Erxue[1] Li, Zengyuan[1] Liu, Qingwang[1] Li, Shiming[1] Ling, Feilong[1] Pottier, Eric[2] Cloude, Shane[3]

第一作者：Fan, Fengyun

通信作者：Fan, F.

机构：[1] Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing, China; [2] Institute of Electronics and Telecommunications of Rennes, University of Rennes1, France; [3] AEL Consultants, United States

会议论文集：Proceedings of the Symposium - Dragon 2 Programme Mid-Term Results 2008 - 2010

会议日期：17 May 2010 through 21 May 2010

会议地点：Guilin City

语种：英文

外文关键词：Forestry - Mapping - Synthetic aperture radar - Backscattering - Polarimeters - Optical radar - Geometry

年份：2010

摘要：In order to investigate the potential capability of mapping forest stand volume using the multi-sources data, ALOS PALSAR, airborne LiDAR and high resolution CCD image in forest stand level, one test site located in the warm temperate hilly forest region of Shandong Province in China was established. Airborne LiDAR and CCD campaign was carried out in the end of May, 2005. One scene of ALOS PALSAR quad-polarization image was acquired in May 19th,2007. Ground forest plot data for Black Locust and Chinese Pine dominated forest stands were collected through field work from May to June of 2008. The correlations of forest stand volume to PALSAR backscattering coefficient of HH, HV,VH,VV, their ratio and some H-Alpha polarimetric decomposition parameters were analyzed in stand level through regression analysis. Mean forest stand volume of each polygons (forest stand) was finally estimated based on the regression model established using ground measured forest volume data and the corresponding parameters (polygon mean) derived from LiDAR CHM and polarimetric SAR data. Results show that it is feasible to combine low density LiDAR data, L-band SAR data and forest polygon data from high resolution CCD image for stand level forest volume estimation in hilly regions, the RMSE is 20.064m3/ha for Black Locust and 24.730m3/ha for Chinese Pine.