| 遥感区域大小对森林蓄积估测影响规律的研究 |
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| 引用本文： | 李崇贵,赵宪文,蔡体久.遥感区域大小对森林蓄积估测影响规律的研究[J].北京林业大学学报,2001,23(4):29-34. |
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| 作者姓名： | 李崇贵 赵宪文 蔡体久 |
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| 作者单位： | 1. 中国林业科学研究院资源信息研究所
2. 东北林业大学森林资源与环境学院 |
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| 基金项目： | 国家自然科学基金;49971061; |
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| 摘 要： | 该文将 1幅TM遥感图像分别分成 1 4及 1 2幅 ,通过实例分析了 1 4,1 2及整幅TM图像所能达到的几何精校正精度 .然后 ,以样地对应的遥感和GIS信息为影响森林蓄积估测的变量 ,采用最小二乘原理及岭迹分析 ,研究了上述 3种不同面积幅值图像对应林区影响森林蓄积估测的主要变量 .由 3种不同面积遥感区域蓄积估测方程中所含变量的个数、种类及预报精度 ,详细分析了遥感区域大小对蓄积估测的影响规律
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| 关 键 词： | 森林蓄积 几何精校正 最小二乘估计 岭迹分析 复共线性 |
| 修稿时间： | 2001年2月8日 |
Influence of the size of remote sensing area on forest volume esti-mation. |
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| Li Chonggui,Zhao Xianwen,Cai Tijiu.Influence of the size of remote sensing area on forest volume esti-mation.[J].Journal of Beijing Forestry University,2001,23(4):29-34. |
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| Authors: | Li Chonggui Zhao Xianwen Cai Tijiu |
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| Institution: | Li Chonggui,Zhao Xianwen,Cai Tijiu. The Research Institute of Forest Resource Information,Beijing 100091,P.R. China. |
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| Abstract: | In this paper, a one\|fourth and a one\|second part is separately broken up from a full TM remote sensing image. The possible geometry exact correcting precision of one\|fourth part, one\|second part and a full TM remote sensing image are analyzed through a practical example. With the information of remote sensing and GIS of the ground sample plots as independent variables that influence forest stock estimation, the main variables affecting forest stock estimation in the different forest zones corresponding to the above 3 kinds of remote sensing image area are investigated by means of ridge trace analysis. According to the different variable number, variable variety and predicting precision of the stock estimation equation corresponding to 3 kinds of remote sensing image area, the influencing laws of remote sensing area size are analyzed in detail. |
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| Keywords: | forest stock geometry exact correction least square estimation ridge trace analysis Multi-Collinearity |
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