Exchangeable cations in deep forest soils: Separating climate and chemical controls on spatial and vertical distribution and cycling
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- 作者：Jason James ; jajames@uw.edu" class="auth_mail" title="E-mail the corresponding author ; Kim Littke ; Thiago Bonassi1 ; Rob Harrison
- 关键词：Exchangeable cations ; Deep soil ; Calcium ; Potassium ; Magnesium ; Soil carbon
- 刊名：Geoderma
- 出版年：2016
- 出版时间：1 October 2016
- 年：2016
- 卷：279
- 期：Complete
- 页码：109-121
- 全文大小：2145 K
文摘
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The majority of exchangeable cation stocks are found below 1 m in deep forest soils.
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Differences in climate drive the distribution of cations between sites.
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As soil carbon increases, exchangeable Ca and Mg decrease within the soil profile.
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Plant uptake is the major driver of exchangeable K vertical distribution.
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Deep soil is an important resource for plant nutrition.