Estimation of forest volumes by integrating Landsat TM imagery and forest inventory data

CORC > 沈阳应用生态研究所 > 中国科学院沈阳应用生态研究所 > 沈阳应用生态研究所

	Estimation of forest volumes by integrating Landsat TM imagery and forest inventory data
	Wang, H; Gu, HY; Dai, LM; Wu, G; Xu, D; Wang, SZ; Wu, G, Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Syst Ecol, Beijing 100085, Peoples R China
刊名	SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES
	2006
卷号	49 页码:54-62
关键词	Forest Inventory Landsat Tm K-nearest Neighbors Spectral Extraction
ISSN号	1006-9321
英文摘要	Accurate information about forest volumes is essential for forest management planning. The survey interval of the Forest Resource Inventory of China (FRIC) is too long to meet the demand for timely decision-making required for forest protection, management, and utilization. Analysis of satellite imagery provides good potential for more frequent reporting of forest parameters. In this study, we describe an application of the k-nearest neighbors (kNN) method to Landsat TM imagery for improving estimation of forest volumes. Several spectral features were tested and compared in forest volume estimations, including normalized difference vegetation index, environmental vegetation index, and the combination of the spectral features. The combined index resulted in the most accurate volume estimations. The kNN estimator and the combined index were then used in forest volume estimation. The estimation error (RMSE) of the total volume was 44.2%, much lower than those for Larix forest (the RMSE was 51.7%) and those for the Korean pine and broadleaved forests (the estimation errors were over 71.7% and 88.19%, respectively). This preliminary study demonstrates the potential of forest volume estimations with remote sensing data to provide useful information for forest management if only limited ground information is available.
学科主题	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000240203200007
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54865]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Wu, G, Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Syst Ecol, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Wang, H,Gu, HY,Dai, LM,et al. Estimation of forest volumes by integrating Landsat TM imagery and forest inventory data[J]. SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES,2006,49:54-62.
APA	Wang, H.,Gu, HY.,Dai, LM.,Wu, G.,Xu, D.,...&Wu, G, Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Syst Ecol, Beijing 100085, Peoples R China.(2006).Estimation of forest volumes by integrating Landsat TM imagery and forest inventory data.SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES,49,54-62.
MLA	Wang, H,et al."Estimation of forest volumes by integrating Landsat TM imagery and forest inventory data".SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES 49(2006):54-62.