摘要
通过测定马尾松低效林改造20 a后的林地土壤物理性质(土壤容重、孔隙状况和持水性能),评价了不同改造措施对林地土壤物理性质的影响。研究表明,马尾松低效林改造20 a后的林地土壤物理性质总体上比改造前有明显好转,但相对于改造后的初期几年变化不明显,有的物理指标甚至出现下降趋势,可能是人为干扰的结果。
Through determining the soil physical properties（volume weight of soil,porosity and water-holding capacity） of Pinus massoniana low-efficiency forest after 20 years of rebuilding,the effect of different improvements on soil physical properties was evaluated.The results indicated that the soil physical properties of Pinus massoniana low-efficiency forest after 20 years of rebuilding were better than pre-rebuilding,but comparing with the initial several years of rebuilding,the variation was not obvious,in addition,some physical indexes even presented the decline trend,which may the results of artificial interference.
出处
《安徽农业科学》
CAS
北大核心
2011年第6期3436-3438,共3页
Journal of Anhui Agricultural Sciences
基金
四川省教育厅重点项目(2004A015)
关键词
低效林改造
土壤物理性质
人为干扰
The improvement of low-efficiency forest
Soil physical properties
Artificial interference
