Changes of Soil Fertilities in Michelia Macclurei Stands with Different Slope Positions

XUE Li; XUE Ye; WU Min1; GUO Shi-hong; ZHANG Rou; YANG Zhen-yi

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Changes of Soil Fertilities in Michelia Macclurei Stands with Different Slope Positions

- Changes of Soil Fertilities in Michelia Macclurei Stands with Different Slope Positions
- Bulletin of Soiland Water Conservation Vol. 30, Issue 6, Pages: 51-54(2011)
- 作者机构：
  
  1. 华南农业大学林学院,广东,广州,510642
  2. 浙江工业大学,浙江,杭州,310023
  3. 琉球大学理学部,冲绳,日本,903-0213
- 作者简介：
- 基金信息：
- DOI：
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- Published：2011
- 稿件说明：
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XUE Li, XUE Ye, WU Min1, et al. Changes of Soil Fertilities in Michelia Macclurei Stands with Different Slope Positions[J]. Bulletin of Soiland Water Conservation, 2011, 30(6): 51-54.
DOI：

XUE Li, XUE Ye, WU Min1, et al. Changes of Soil Fertilities in Michelia Macclurei Stands with Different Slope Positions[J]. Bulletin of Soiland Water Conservation, 2011, 30(6): 51-54. DOI：

摘要

对不同坡位的火力楠林土壤肥力动态进行了研究。与2004年相比

2007年火力楠林上坡、中坡和下坡的土壤容重、毛管孔隙、非毛管孔隙、总孔隙变化不明显

土壤含水量显著增加;3个坡位的土壤pH值均略有减少

土壤有机质、全氮和全钾含量显著增加

全磷含量减少;3个坡位的土壤碱解氮、速效磷及中坡和下坡的速效钾含量显著增加

上坡的速效钾含量略增。2004和2007年火力楠林的土壤物理性质无明显变化规律。2004和2007年

3个坡位的pH值相近

土壤有机质、全氮和全磷含量均表现为:下坡>中坡>上坡。2004和2007年

土壤碱解N含量为中坡和下坡大于上坡

3个坡位的速效磷含量均相近。2004年上坡和中坡的速效钾含量小于下坡

2007年速效钾含量则表现为:下坡>中坡>上坡。

Abstract

The study on changes of soil fertilities was conducted in Michelia macclurei stands with different slope positions in 2004 and 2007.Compared with those in 2004

no significant changes in the soil density

capillary porosity

non-capillary porosity

total porosity and capillary moisture were observed in the upper-slope

middle-slope and lower-slope

whereas the natural water significantly increased in 2007.The pH value of the three positions decreased slightly

the contents of soil organic matter

total N and total K significantly increased

whereas total P content decreased in the three positions.The contents of soil hydrolyzable N and available P in the three positions and available K of the middle-slope and lower-slope significantly increased

and K of the upper-slope increased slightly.Soil physical properties changed with a non-regular pattern.The pH value and available P content of the three slopes were close to each other

the contents of soil organic matter

total N and total P were lower-slopemiddle-slopeupper-slope in 2004 and 2007.The content of soil hydrolyzable N of middle-slope and lower-slope was greater than that of upper-slope

and available K content of the upper-slope

middle-slope was smaller than that of the lower-slope in 2004

whereas it was lower-slopemiddle-slopeupper-slope in 2007.

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