Forest Volume Estimation Method Based on ALOS PALSAR Data

Abstract

Abstract: Based on the ALOS PALSAR data and forest management inventory fixed plot data, nonlinear regression method was used for analyzing the relationship between backscattering coefficient and plot forest volume (m³/hm²). The test site was located in Wangqing Forest Bureau of Jilin Province. Results showed that HV polarization backscattering coefficient has good positive correlation with forest volume except forest stand with Poplar (Populus ussuriensis) as the dominant tree species. For most forest stands no matter what kinds of dominant tree species, the coefficient of determination between HV polarization and forest volume is higher than that between HH polarization and forest volume. Results also showed the difference between the result estimated from SAR data using regression method and that estimated directly from plots data is small when the forest farm is taken as a basic statistic unit.

Key words: ALOS PALSAR, backscattering coefficient, forest volume

CLC Number:

TP79
S758.5

YANG Yongtian, LI Zengyuan, CHEN Erxue, LING Feilong. Forest Volume Estimation Method Based on ALOS PALSAR Data[J]. FOREST RESOURCES WANAGEMENT, 2010, 0(1): 113-117.

References

[1] 杨洪晓,吴波,张金屯,等.森林生态系统的固碳功能和碳储量研究进展[J].北京师范大学学报:自然科学版,2005,41(2):172-177.
[2] Brown S, Sathaye J, Canell M, et a1.Mitigation of carbon emission to the atmosphere by forest　management[J].Com For Rev, 1996, 75: 80-91.
[3] 江东,王礼茂.森林碳循环研究中的空间信息技术[J].甘肃科学学报,2005,17(2):88-92.
[4] 庞勇,李增元,陈尔学,等.激光雷达技术及其在林业上的应用[J].林业科学,2005,41(3):129-136.
[5] 陈尔学.合成孔径雷达森林生物量估测研究进展[J].世界林业研究,1999,12(6):18-23.
[6] Luckman A, Baker J, Wegm¨uller U.Repeat-pass interferometric coherence measurements of disturbed tropical forest from JERS and ERS satellites[J].Remote Sensing of Environment, 2000,73:350-360.
[7] Fransson J, Smith G, Askne J, et al.Stem volume estimation in boreal forests using ERS-1/2 coherence and Spot XS optical data[J].International Journal of Remote Sensing,2001,22(14):2777-2791.
[8] Pulliainen J, Engdahl M, Hallikainen M.Feasibility of multi-temporal interferometric SAR data for stand-level estimation of boreal forest stem volume[J].Remote Sensing of Environment,2003,85:397-409.
[9] Tansey K J, Luckman A J, L Skinner, et al.Classification of forest volume resources using ERS tandem coherence and JERS backscatter data[J].International Journal of Remote Sensing,2004,25:751-768.
[10] 王臣立,牛铮,郭治兴,等.Radarsat SAR的森林生物物理参数信号响应及其蓄积量估测[J].国土资源遥感,2005(2):24-28
[11] 朱海珍,庞勇,杨飞,等.基于ENVISAT ASAR数据的森林蓄积量估计研究[J].地理与地理信息科学,2007,23(2):51-55.
[12] Dobson M C, Ulaby F T, Letoan, et al.Dependence of radar backscatter on coniferous forest biomass[J].IEEE Transactions on Geoscience and Remote Sensing.1992,30:412-415.