| 黄土丘陵沟壑区不同水保措施条件下土壤水分状况 |
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| 引用本文： | 张北赢,徐学选,刘文兆.黄土丘陵沟壑区不同水保措施条件下土壤水分状况[J].农业工程学报,2009,25(4):54-58. |
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| 作者姓名： | 张北赢 徐学选 刘文兆 |
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| 作者单位： | 1. 徐州师范大学城市与环境学院,徐州,221116
2. 中国科学院水利部水土保持研究所,杨凌,712100 |
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| 基金项目： | 国家自然科学基金“黄土高原生态恢复的环境效应及评价”（90502007）中国科学院西部行动计划“黄土高原退耕还林（草）环境效应与效益评价”（KZCX2-XB2-05-03）；徐州师范大学博士科研启动基金（08XLR11） |
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| 摘 要： | 黄土高原土壤水资源对植物的生长发育意义重大。水土保持措施会影响土壤水分的静态分布和动态过程。该文通过定位监测并引入土壤水分亏缺补偿度指标，旨在明确黄土丘陵沟壑区不同水土保持措施下土壤水分动态特征和雨季前后土壤水分的亏缺与补偿情况。结果表明：不同水土保持措施雨季前后土壤储水均处于亏缺状态，7月份土壤储水亏缺得到缓解；8月份表层土壤储水亏缺加剧；雨季后的10月份土壤储水均得到恢复。降雨对退耕坡地和梯田土壤水分均有正补偿作用。水平阶90 cm处和160 cm以下出现负补偿现象。鱼鳞坑在30 cm处出现负补偿。在0～200 cm土壤剖面上，土壤储水亏缺补偿度依次为退耕坡地＞梯田＞鱼鳞坑＞水平阶。由此可见，不同水土保持措施对土壤水分季节变化和垂直变化，以及降雨对土壤水分的补偿作用均产生不同影响。
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| 关 键 词： | 水土保持 土壤水 土壤水分亏缺 补偿与恢复 黄土丘陵区 |
| 收稿时间： | 2007/8/15 0:00:00 |
| 修稿时间： | 2/5/2009 12:00:00 AM |
Soil water condition under different measures of soil and water conservation in loess hilly and gully region |
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| Zhang Beiying,Xu Xuexuan and Liu Wenzhao.Soil water condition under different measures of soil and water conservation in loess hilly and gully region[J].Transactions of the Chinese Society of Agricultural Engineering,2009,25(4):54-58. |
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| Authors: | Zhang Beiying Xu Xuexuan and Liu Wenzhao |
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| Institution: | 1. College of Urban and Environmental Sciences;Xuzhou Normal University;Xuzhou 221116;China;2. Institute of Soil and Water Conservation;Chinese Academy of Sciences and Ministry of Water Resources;Yangling 712100;China |
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| Abstract: | Soil water resource is very important to the growth and development of plants on the Loess Plateau. Soil and water conservation measures have impacted on the static distribution and dynamic process of the soil water resource. Based on data collected by random survey of soil moisture and compensation degree of soil water storage deficit,the soil moisture dynamics and the compensation characteristics of soil water deficit under different measures of soil and water conservation in the loess hilly and gully reg... |
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| Keywords: | soil and water conservation soil moisture soil water deficit compensation and rehabilitation Loess hilly region |
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