滇西山地桉树林土壤物理性质研究

Study on soil physical properties under eucalyptus forest in west of Yunnan

研究滇西不同利用类型下(桉树林、旱冬瓜林、示范林、云南松林)土壤的物理性质。结果表明,它们之间的关系是显著或极显著的,不同的利用类型和土层并对之影响显著;桉树林下土壤容重增加孔隙度下降,说明桉树林下土壤退化严重;示范林下土壤各项物理指标有所好转,具有一定的土壤恢复作用。

This paper studied on the soil physical properties under different utilization types （Yunnan pine forest, alnus nepalensis, eucalyptus plantation, demonstration forest） in west of Yunnan. Through the correlations analysis, variance analysis, showed that： the correlation between them is notable or obviously notable; different utilization and different soil depth types had influenced on them. The soil bulk specific gravity increased and the air gate porosity dropped under eucalyptus plantation showed the soil degeneration is serious. under the demonstration forest the soil each physics target had the change for the better, had certain soil to restore the function.