水土保持通报2011，Vol.31Issue(6)：51-54,4.
不同坡位火力楠林土壤肥力变化特征
Changes of Soil Fertilities in Michelia Macclurei Stands with Different Slope Positions
摘要
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.关键词
火力楠/坡位/土壤物理性质/土壤养分Key words
Michelia macclure/slope position/soil physical properties/soil nutrient分类
农业科技引用本文复制引用
薛立,薛晔,吴敏,郭淑红,张柔,杨振意..不同坡位火力楠林土壤肥力变化特征[J].水土保持通报,2011,31(6):51-54,4.基金项目
广东省林业局资助项目“林分改造优良乡土阔叶树种筛选” （）
