摘要
从土壤养分、腐殖质、酶活性和微生物含量的变化,研究了落叶松纯林土壤衰退的问题。探讨了间伐、混交林和二代连栽对土壤肥力的影响。并对导致土壤衰退的原因进行了分析,提出了相应的防治对策。
In this paper,the probleln of soil degradation was studied inpure larch plantation, from soii nutrients,lumus, soil enzyme activity to soilmicroorganism content, At the same time,the influence on the soil fertilitywas discussed of intermediate cuttings,the second rotation stand and mixed fo-rest. The reasons of leading to soil degradation in pure larch plantations werediscussdand some appropriate control countermeasure were put forward.
出处
《内蒙古林业科技》
北大核心
1996年第3期93-98,共6页
Journal of Inner Mongolia Forestry Science and Technology
基金
内蒙古青年基金