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Title: |
Research on Accuracy Analysis Model for Spruce Dual Volume and Reserves |
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Source: |
International Conference on Information, Electronic and Computer Science (ICIECS 2010 E-BOOK)
(pp 1392-1395)
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Author(s): |
Cheng He, Institute of GIS RS & GPS，Beijing Forestry University，Beijing 100083,China；
Zhongke Feng, Institute of GIS RS & GPS，Beijing Forestry University，Beijing 100083,China；
Kezhen Liu, Chinese Academy of Forestry Science Institute of Wood Industry, Beijing 100091,China Email: address, address
Jinjun Yuan, Institute of GIS RS & GPS，Beijing Forestry University，Beijing 100083,China；
Yinxi Gong, Institute of GIS RS & GPS，Beijing Forestry University，Beijing 100083,China； |
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Abstract: |
To improve the regression accuracy of the high picea binary volume regression model parameters and then improve the estimation accuracy of growing stock, nonlinear least square method and additional limitations of the onlinear least square method in this paper established a picea volume model, and to assess the precision estimate for the modeling of model parameters. On the basis of the volume accuracy estimation of Slovakia's Weibull model, calculating the accuracy assessment model of the spruce volume by using tree by tree method, and then assessing the accuracy by the spruce volume estimated in the built model, so that both the specific values obtained growing stock volume , can be the growing stock volume error range. Compiled by VB language model building and precision analysis of the procedures, to achieve the automation of modeling and accuracy assessment, and increased the efficiency and accuracy of amount of timber processing data and accumulated data.
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