| 试论黄土区旱地土壤水资源的地带性与非地带性 |
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| 引用本文： | 穆兴民.试论黄土区旱地土壤水资源的地带性与非地带性[J].土壤学报,1999,36(2):237-244. |
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| 作者姓名： | 穆兴民 |
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| 作者单位： | 中国科学院、水利部水土保持研究所,陕西,杨陵,712100 |
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| 基金项目： | 国家科技攻关项目，96-004-05-12， |
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| 摘 要： | 土壤水资源是干旱半干旱地区重要的水资源之一。本文主要以天然草地深层土壤含水量为基础，明确了土壤水资源的地带与非地带性概念，分析了黄土区埋地土壤水分资源的地带性与非地带性分异规律。指出，在相似的植被及地形条件下，黄土高原土壤深层水分从面向北和从东向西逐渐降低以及从山顶到坡脚逐渐增大，表面出水平和垂直地带性分异规律。在相似的土壤水资源带内，土地类型、坡度及坡向等地形因素导致土壤水分的局地分异，即土壤水
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| 关 键 词： | 黄土区 土壤水资源 地带性 非地带性 土壤水分 |
| 收稿时间： | 1998/6/29 0:00:00 |
| 修稿时间： | 1998/11/15 0:00:00 |
AN EXPLORATORY RESEARCH ON THE GEO-ZONAL AND UNZONAL DISTRIBUTIONS OF SOIL WATER IN LOESS REGION,CHINA |
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| Mu Xing-min.AN EXPLORATORY RESEARCH ON THE GEO-ZONAL AND UNZONAL DISTRIBUTIONS OF SOIL WATER IN LOESS REGION,CHINA[J].Acta Pedologica Sinica,1999,36(2):237-244. |
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| Authors: | Mu Xing-min |
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| Institution: | Institute of Soil and Water Conservation, Chinese Academy of Sciences & Ministry of Water Resources, Yangling, Shaanxi 712100 |
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| Abstract: | In the present paper the concept of the geo-zonal and unzonal distributions of soil water resouces is defined and the variation rules of the distribution of soil water resources in loess region,China is analyzed.Under homogeneous condition of vegetation and landfonn there is a geologically zonal distribution law which soil water content decreases from south to north and increases from the mountain top to bottom in loess region,China.In the ogeneous soil water zone the differences in land-types,variation of slope direction and mountain slope gradient soil water content,namely unzonal distribution of result in the local water resources. |
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| Keywords: | Loess region Soil water Geo-tonal and unzonal distributions |
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