Changes in Soil Nutrients with Profile Depth in Aquic Brown Soil under Different Land Use

JIANG Yong; HAO Wei; ZHANG Yu-ge; LIANG Wen-ju

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Changes in Soil Nutrients with Profile Depth in Aquic Brown Soil under Different Land Use

更新时间：2024-11-07

- Changes in Soil Nutrients with Profile Depth in Aquic Brown Soil under Different Land Use
- Vol. 20, Issue 3, Pages: 93-96(2006)
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  CLC： S153.6S158.3
- Published：2006
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JIANG Yong, HAO Wei, ZHANG Yu-ge, et al. Changes in Soil Nutrients with Profile Depth in Aquic Brown Soil under Different Land Use[J]. 2006, 20(3): 93-96.
DOI：

JIANG Yong, HAO Wei, ZHANG Yu-ge, et al. Changes in Soil Nutrients with Profile Depth in Aquic Brown Soil under Different Land Use[J]. 2006, 20(3): 93-96. DOI：

摘要

对中国科学院沈阳生态实验站潮棕壤水稻田、玉米地、撂荒地和人工林地营养元素随剖面深度变化的研究表明，4种土地利用方式的有机C、全N、全S及DTPA浸提态Fe、Mn、Cu、Zn等具有随剖面深度增加而下降的趋势，交换性Ca、Na及交换性盐基总量在土层间的分异不明显。有机C、全N、碱解N、NO3^-N、全S及DTPA浸提态微量元素在0～10cm和0～20cm的含量与0～100cm含量的比值分别为0．1和0．2以上．表明这些养分指标具有明显的表聚性特征；NH4^-N、全P、速效S无明显的表聚性；交换性Mg、Na及交换性盐基总量在0～20cm与0～100cm含量的比值小于0．2．反映了供试潮棕壤较强的淋溶作用。不同土地利用方式营养元素在土壤剖面中的分布差异及表聚性特征，主要受到植物循环的影响，另外还受到淋溶及人为干扰的影响。

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