杉木近成熟林林分密度对林下套种闽楠根系生长的影响
Effects of stand density on root growth of intercropping Phoebe bournei in near-mature Chinese fir forest
[目的]为研究杉楠复层林林分密度对林下套种闽楠根系生长的影响。[方法]通过测定不同杉木林分密度下不同土层闽楠根系生物量、细根形态特征及土壤物理性质,分析比较不同杉木密度的杉楠复层林中闽楠的根系分布情况、根系平均直径以及土壤持水性能的变化规律。[结果]在同一杉木林分密度下闽楠根系生物量随着根系在垂直土层分布的深入而增加;在适当的杉木林分密度内,随着杉木林分密度的增加闽楠生物量呈现先下降后上升的趋势;在适当的杉木林分密度内,不同杉木密度对土壤容重、土…查看全部>>
[Objective]In order to study the effect of stand density on the root growth of interplanting Phoebe bournei in the multi-layer forest of Phoebe bournei.[Method]by measuring the root biomass,fine root morphological characteristics and soil physical properties of Phoebe bournei in different soil layers under different Chinese fir stand densities,the root distribution,average root diameter and soil water holding capacity of Phoebe bournei in different Chinese f…查看全部>>
田云龙;李林鑫;杨贵云;钟兆全;马祥庆;吴鹏飞;
Phoebe bournei stand density root distribution physical properties soil depth
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