Influence Factors of Soil Potassium in Zoology Fragility Area in Northern Hengduanshan Mountains

LI Ting; ZHANG Shi-rong; ZHANG Lin; LI Yi; GAN Wen-zhi

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Influence Factors of Soil Potassium in Zoology Fragility Area in Northern Hengduanshan Mountains

更新时间：2024-11-07

- Influence Factors of Soil Potassium in Zoology Fragility Area in Northern Hengduanshan Mountains
- Vol. 20, Issue 3, Pages: 102-105(2006)
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  CLC： S158.2
- Published：2006
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LI Ting, ZHANG Shi-rong, ZHANG Lin, et al. Influence Factors of Soil Potassium in Zoology Fragility Area in Northern Hengduanshan Mountains[J]. 2006, 20(3): 102-105.
DOI：

LI Ting, ZHANG Shi-rong, ZHANG Lin, et al. Influence Factors of Soil Potassium in Zoology Fragility Area in Northern Hengduanshan Mountains[J]. 2006, 20(3): 102-105. DOI：

摘要

采用SPSS统计软件和地统计学方法研究了横断山北部生态脆弱区土壤钾素的影响因素。结果表明

该区土壤有机质层全钾的平均含量为(21.74±5.97)g/kg

速效钾的平均含量为(183.9±107.4)mg/kg。由不同母质发育的土壤中

全钾的含量为板岩残坡积物>砂岩残坡积物>花岗岩残坡积物>洪积物>第四系冲积物;速效钾含量为砂岩残坡积物>板岩残坡积物>第四系冲积物>洪积物>花岗岩残坡积物。在林地、草地和耕地3种土地利用方式中

土壤全钾含量为草地>林地>耕地;速效钾含量为耕地>草地>林地。在不同坡度的土壤中

其全钾和速效钾含量变化较复杂。在不同地貌类型上发育的土壤中

全钾含量为山体>洪积扇>阶地>丘状高原;速效钾含量则为丘状高原>阶地>洪积扇

在山体土壤中的分布是山体下部最低

并随山体部位增高而逐渐增加。

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Influence Factors of Soil Potassium in Zoology Fragility Area in Northern Hengduanshan Mountains

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