| 土地利用方式对黄土丘陵土壤CaCO_3含量及分布的影响 |
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| 引用本文： | 贾宇平,段建南.土地利用方式对黄土丘陵土壤CaCO_3含量及分布的影响[J].土壤通报,2003,34(4):319-321. |
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| 作者姓名： | 贾宇平 段建南 |
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| 作者单位： | 1. 山西大学黄土高原研究所,山西,太原,030006;山西太原师范学院地理系,山西,太原,030012
2. 山西大学黄土高原研究所,山西,太原,030006 |
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| 基金项目： | 国家自然科学基金资助项目(49971040) |
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| 摘 要： | 本文以具有典型黄土丘陵特征的砖窑沟流域为例,对该流域梁峁地主要土壤类型上不同土地利用方式下0～200cm层土壤剖面CaCO3含量进行了分析。结果表明:土壤CaCO3含量耕地>林地>荒草地;耕地土壤CaCO3有明显的累积层,累积深度约在20～100cm之间;林地累积层深度约在20～60cm之间;而荒草地无明显累积层。这种现象与一般干旱半干旱地区不同。
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| 关 键 词： | 土地利用 CaCO3含量 CaCO3累积层 |
| 文章编号： | 0564-3945(2003)04-0319-03 |
| 修稿时间： | 2002年7月12日 |
The Effects of Land-Use on Calcium Carbonate in Hilly Loess Soils |
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| Abstract: | Contents of calcium carbonate in the chestnut-cinnamon soils(Usic Cambisols) from zero to two hundred centimeter depth on a slope of the loess plateau were analyzed,taking Zhuanyaogou river basin as an example,which is typical in the loess plateau.Results indicated that contents of calcium carbonate in the soils of cropland were highest and that of uncropped land were lowest.An obvious accumulation layer of calcium carbonate was in the soils of cropland,which was from twenty to one hundred centimeter depth.And an accumulation layer of calcium carbonate in the soils of forest land was from twenty to sixty centimeter depth.There wasn't an obvious accumulation layer of calcium carbonate in the soils of uncropped land. |
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| Keywords: | Land use Content of calcium carbonate Assumulation layer of calcium carbonate |
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