In the past, climate, soil, the community structure and function of plantation, changes of soil microorganism divisions and cultivation measures were studied for soil degradation,lacking of necessary studies on effects of cultivars alternative continuous cropping and exogenous phenolic acids .
以往人工林地力衰退研究主要集中在气候、土壤、人工林群落结构及其功能、土壤微生物种群区系变化、栽培措施等方面,对杨树人工林连作效应、特别是品种更替连作效应及外源酚酸类物质化感效应缺少必要的研究。
参考来源 - 杨树品种更替连作对土壤生态环境的影响及外源酚酸的化感效应·2,447,543篇论文数据,部分数据来源于NoteExpress
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