Spatial Distribution and Influencing Factors of N and P in Soils Under Three Types Riparian Forests

FAN Lan-ying; GUO Jin-ping

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Spatial Distribution and Influencing Factors of N and P in Soils Under Three Types Riparian Forests

- Spatial Distribution and Influencing Factors of N and P in Soils Under Three Types Riparian Forests
- Bulletin of Soiland Water Conservation Vol. 31, Issue 2, Pages: 17-20(2012)
- 作者机构：
  
  山西农业大学林学院，山西太谷,030801
- 作者简介：
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- Published：2012
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FAN Lan-ying, GUO Jin-ping. Spatial Distribution and Influencing Factors of N and P in Soils Under Three Types Riparian Forests[J]. Bulletin of Soiland Water Conservation, 2012, 31(2): 17-20.
DOI：

FAN Lan-ying, GUO Jin-ping. Spatial Distribution and Influencing Factors of N and P in Soils Under Three Types Riparian Forests[J]. Bulletin of Soiland Water Conservation, 2012, 31(2): 17-20. DOI：

摘要

通过等距离梯度密集采样，结合主成分分析和相关性分析，研究了3种河岸林土壤全氮和全磷的空间分布及其影响因素。结果表明，3种河岸林全氮储量表层显著高于中层和底层；全磷储量层次性不明显。3种河岸林中，云杉河岸林土壤的氮磷储量最大，青杨辽东栎混交林次之，落叶松辽东栎最小。影响全氮分布的主要因子为有机质和植被盖度；影响全磷分布的主要因素为土层厚度和土壤容重。

Abstract

Spatial distribution of total nitrogen(TN) and total phosphorus(TP) in soils under three riparian forests were studied with a dense equidistance sampling scheme．The results of correlation and principal component analysis showed that the contents of TN in surface soil were significantly higher than those in subsoil，while the contents of TP in surface were that almost same level with those in subsoil． The contents of TN and TP of the spruce forest soil were the highest，followed by the mixed forest of Populus and oak，and the soil under the mixed forest of larch and oak had lowest levels． The main factors affecting TN distribution were organic carbon and vegetation coverage，and soil depth and bulk density controlled the distribution of TP．

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