Study on Water Holding Capacity of Yellow Soil in Karst Area of Central Guizhou

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Study on Water Holding Capacity of Yellow Soil in Karst Area of Central Guizhou

更新时间：2024-11-07

- Study on Water Holding Capacity of Yellow Soil in Karst Area of Central Guizhou
- Issue 6, Pages: 25-29(2006)
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- Published：2006
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Study on Water Holding Capacity of Yellow Soil in Karst Area of Central Guizhou[J]. 2006, (6): 25-29.
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Study on Water Holding Capacity of Yellow Soil in Karst Area of Central Guizhou[J]. 2006, (6): 25-29. DOI：

摘要

在贵州中部采取0～1000cm土层的黄壤样品，分析了土壤基本理化性质，测定了土壤水分特征曲线，采用数理统计方法对数据进行了整理与分析。贵州中部低山丘陵区黄壤粘粒含量高。〈0．01mm颗粒含量806．23～686.2g／kg，〈0．001mm粒径颗粒含量651．05～263．57g／kg，粘粒含量高．犁底层透水性差，不利于降雨入渗。黄壤的持水量高，有效水的范围极窄10～100cm土层总库容5515．3m^3／hm^2。贮水库容4094．1m^3／hm^2，有效水库容仅9．69％，其比例较广州赤红壤、华北潮土和东北黑土低35．65，43．17和41．19个百分点；黄壤的通透库容小，不利于水分的上、下运行。

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