| 禹城沙地水分动态规律及其影响因子 |
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| 引用本文： | 冯起,高前兆.禹城沙地水分动态规律及其影响因子[J].中国沙漠,1995,15(2):151-157. |
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| 作者姓名： | 冯起 高前兆 |
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| 作者单位： | 中国科学院兰州沙漠研究所 |
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| 摘 要： | 通过对禹城沙河地沙土土壤水分动态监测，分析其土壤水分剖面变化，得出本沙地土壤水分动态变化规律：依据降水、植被、地下水和土壤将土壤水分垂直剖面划分为表层０－１０ｍ或０－２０ｃｍ干沙层，２０－４０ｃｍ土壤水分变化剧烈层，４０－８０ｃｍ土壤水分活跃层，８０－１２０ｃｍ以下土壤水分深部稳定层；沙地土壤水分随季节变化划分为，春季水分变化较微──弱失水阶段，夏季水分剧烈变化──降水补给阶段，秋季水分变化缓慢─—失水阶段，冬季水分变化较微弱──调整阶段。
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| 关 键 词： | 沙地水分，动态变化规律，影响因子 |
ANALYSIS ON VARIATION LAW OF SANDY SOIL MOISTUER AND ITS INFLUENCING FACTORS IN YUCHENG,SHANDONG |
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| FengQi,Gao Qianzhao.ANALYSIS ON VARIATION LAW OF SANDY SOIL MOISTUER AND ITS INFLUENCING FACTORS IN YUCHENG,SHANDONG[J].Journal of Desert Research,1995,15(2):151-157. |
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| Authors: | FengQi Gao Qianzhao |
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| Abstract: | Through three years of obervation to sandy soil moisture varhtion in Shahe, Yucheng, and analysing soil moisture profole , it has reached the conclusion: from the top to the bottom thereexist four distinctive layers of soil moisture , namely surface dry sand layer,0-10 cm or 0-20 cm; extremely active soil moisture layer , 20-40 cm; active soil moisture layer, 40-80 cm; and stablesoil moisture layer,80-120 cm. Based on the seasonal variation of sandy soil moisture, it can bedivided into four phrases: the soil moisture varies weakly in spring and autumn is highly, variablephrase, summer is active increase phrase, winter is stable and regulational phrase. |
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| Keywords: | Soil moisture Sand soil Dynamic variation |
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