人工诱导阔叶红松林改良土壤效果分析

文章通过比较不同类型红松针阔混交林和红松纯林的林分枯落物含量、土壤理化性质及土壤酶活性等性状可知,单位面积枯落物总量红松针阔混交林比红松纯林高40%~60%,其半分解的枯落物量均高于未分解的枯落物量,而红松纯林则相反;红松针阔混交林中枯落物的持水量较红松纯林高26%~75%,养分含量明显高于红松纯林;红松针阔混交林土壤理化性质及酶活性都明显优于红松纯林。

Effect analysis of soil improvement by artificial induction in broad-leaved Pinus koraiensis mixed forest

The water-hold characteristics of litter, soil physical and chemical properties and soil enzyme activities were investigated in different types 17 years old broad-leaved and Pinus koraiensis mixed woodlands of Liaoning Experimental Forest Farm. The results showed： The litter amounts per unit area of broad-leaved and Pinus koraiensis mixed woodlands were 40%-60% higher than that of Pinus koraiensis pure woodland. In mixed woodlands, the amount of half-decomposed litter higher than that of un-decomposed, while it was opposite in Pinus koraiensis pure woodland. In mixed woodlands, water-holding capacities were 26%-75% higher than that of ptre woodland, and nutrition amounts in mixed woodlands were also significantly higher than that of pure woodland. Besides, the soil physical and chemical characteristics and enzyme activities in mixed woodlands were better than that of pure woodland.