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六道沟小流域地形序列土壤碳剖面分布特征及影响因素

Shuitu Baochi Xuebao, 2017
为了更好地理解黄土高原植被恢复与生态重建过程对土壤碳循环过程的影响，研究选取位于黄土高原六道沟小流域的典型土壤地形序列（东北坡NE序列，西坡W序列），分析了不同坡向间及同一坡向内随植被类型变化土壤有机碳和无机碳的剖面分布特征及其影响因素。结果表明:六道沟小流域地形序列土壤有机碳含量在0—50 cm土层内随土层深度增加而显著降低，50 cm土层以下基本趋于稳定，且剖面上层（0—50 cm）有机碳含量显著高于剖面下层（50—200 cm，p0.05）。与有机碳相比，无机碳含量相对较高并且主要在剖面下部（50
毛, 邵明安, 黄来明
doaj  

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