| 土壤水分植被承载力数学模型的初步研究 |
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| 引用本文： | 郭忠升,邵明安. 土壤水分植被承载力数学模型的初步研究[J]. 水利学报, 2004, 35(10): 0095-0099 |
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| 作者姓名： | 郭忠升 邵明安 |
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| 作者单位： | 1. 中科院水利部、西北农林科技大学,水土保持研究所,陕西,杨凌,712100
2. 中科院水利部、西北农林科技大学,水土保持研究所,陕西,杨凌,712100;中科院,地理科学与资源研究所,北京,100101 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)(G2000018605)、中国科学院知识创新工程项目(KZCX2-411)、国家自然科学基金(30230290) |
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| 摘 要： | 本文通过对不同密度林地根层土壤水分补给和消耗量的分析，提出确定土壤水分植被承载力的概念模型。通过对不同密度人工林地根层土壤水分补给和消耗的定位监测资料分析，建立了土壤水分植被承载力的数学模型。通过实例分析可以看出，该方法是简便易行。
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| 关 键 词： | 土壤水分植被承载力；密度；土壤水分补给；土壤水分消耗；数学模型 |
| 文章编号： | 0559-9350(2004)010-0095-05 |
| 收稿时间： | 2003-06-18 |
| 修稿时间： | 2003-06-18 |
Mathematical model for determining vegetation carrying capacity of soil water |
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| GUO Zhong-sheng. Mathematical model for determining vegetation carrying capacity of soil water[J]. Journal of Hydraulic Engineering, 2004, 35(10): 0095-0099 |
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| Authors: | GUO Zhong-sheng |
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| Affiliation: | Institute of Soil and Water Conservation, Yangling 712100, China |
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| Abstract: | Based on the analysis of soil water supply and consumption in forest ecological system the method for determining vegetation carrying capacity of soil water is proposed. The data of soil water supply and consumption for different density of root zone soil layer are derived from field experiment. The quantitative relationship between planting density and soil water supply and water consumption is derived consequently. According to the principle of balance between water supply and water consumption the carrying capacity is obtained by solving the set of equations expressing the relationship. The mathematical model for describing the vegetation carrying capacity of soil water in a Caragana forestland in semi arid loess hilly area based on the observation data is presented as an example for demonstration of the proposed method. |
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| Keywords: | vegetation carrying capacity of soil water planting density soil water supply soil water consumption mathematical model |
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