| 生态林业工程水土保持效益计量的研究 |
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| 引用本文： | 王殿文,李长胜,吴艳辉,李波. 生态林业工程水土保持效益计量的研究[J]. 防护林科技, 2003, 0(3): 18-20 |
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| 作者姓名： | 王殿文 李长胜 吴艳辉 李波 |
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| 作者单位： | 齐齐哈尔林业学校,黑龙江,齐齐哈尔,161001;哈尔滨工业大学;齐齐哈尔市第三中学;齐齐哈尔市涌泉林场 |
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| 摘 要： | 通过对影响水土流失因子的分析,确定出影响水土流失量的区域自变量和林分自变量,建立起森林水土保持效益的整体扩散模型。应用STATISTICA软件包对模型中参数进行求解,得到幂函数形式模型。采用对比法计算出森林的保土量。并且进一步核算出三个生态林业工程区内森林水土保持效益的经济价值,结果分别为:三北地区:1.134亿元,长江中上游地区:0.722亿元,沿海地区:0.2463亿元。
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| 关 键 词： | 生态林业工程 水土保持 效益计量 整体扩散模型 |
| 文章编号： | 1005-5215(2003)03-0018-03 |
| 修稿时间： | 2003-03-07 |
STUDY ON MEASUREMENT OF BENEFIT OF SOIL AND WATER CONSERVATION IN ECOLOGIC FORESTRY PROJECTS |
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| Abstract: | Analysing factors effecting soil and water losses,were determined zonal independent and stand independent effecting soil and water losses,and set up global diffusion models for sois and water conservation benefit of forest,Using software package STATISTICA,parameters in the model were solved and obtained the model of power function By comparing was calculated the amount of soil conserved by forest.Turther were derived the economic value of soil and water conservation of forest in three ecologic forest projects:1.134 hundred million Yuan for the Three north area;0.722 hundred million Yuan for the area of moddle and upper reaches of Yangtse River;0.246 3 hundred million yuan for the coast area. |
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| Keywords: | ecologic forestry project soil and water conservation benefit measurement global diffusion model |
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