| 黄土高原沟壑区林地土壤水分特征的研究（I）——土壤水分的垂直变化和季节变化特征 |
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| 引用本文： | 陈海滨,孙长忠,安锋,党坤良.黄土高原沟壑区林地土壤水分特征的研究（I）——土壤水分的垂直变化和季节变化特征[J].西北林学院学报,2003,18(4):13-16. |
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| 作者姓名： | 陈海滨 孙长忠 安锋 党坤良 |
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| 作者单位： | [1]西北农林科技大学林学院，陕西杨陵712100 [2]中国林业科学研究院林业研究所，北京10009l |
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| 基金项目： | 国家自然科学基金(39770612) |
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| 摘 要： | 对黄土高原沟壑区南缘的油松(Pinus tabulaeformis)、刺槐(Robinia psedudoacacia)人工林及荒坡的土壤水分动态的研究分析，认为林地土壤水分的垂直变化可以分为：土壤水分微弱利用层、土壤水分利用层、土壤水分调节层和土壤水分微弱调节层，荒坡土壤水分的垂直变化可分为：速变层、活跃层、次活跃层和相对稳定层。各立地土壤水分的季节变化可以分为：土壤水分积累期、土壤水分消退期、土壤水分恢复期、土壤水分稳定期和土壤水分消耗期。
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| 关 键 词： | 黄土高原 土壤水分 垂直变化 季节变化 |
| 文章编号： | 1001-7461(2003)04-0013-04 |
| 修稿时间： | 2003年1月3日 |
A Study on Forest Soil Water Features of Loess Plateau Gully and Hilly Region ( I )- Vertical and Seasonal Variation of Soil Water |
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| CHEN Hai-bin,SUN Chang-zhong,AN Feng,DANG Kun-liang.A Study on Forest Soil Water Features of Loess Plateau Gully and Hilly Region ( I )- Vertical and Seasonal Variation of Soil Water[J].Journal of Northwest Forestry University,2003,18(4):13-16. |
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| Authors: | CHEN Hai-bin SUN Chang-zhong AN Feng DANG Kun-liang |
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| Abstract: | The dynamic of soil water in the artificial Pinus taulaeformis, Robinia pseudoacacia forest and the uncultivated lands in Chunhua county, Shaannxi province, were studied during April 1999 - March 2000. The results indicate that according to the vertical variation, the soil profile in the forest can be divided into four layers, i. e. weak absorbing layer, absorbing layer, regulating layer, and weak regulating layer, and in the uncultivated lands can be speedy changing layer, changeful layer, second-changeful layer and relative stability layer. According to the seasonal variation, the soil water condition in all site can be divided into the following five periods; accumulating period, decreasing period, restoring period, stable period and consuming period. |
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| Keywords: | Loess Plateau soil water vertical variation seasonal variation |
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