杉木毛竹混交林造林效果评价

Evaluation on Silvicultural Effects of Mixed Forests of Chinese fir and Phyllostachys heterocycla cv Pubescens

对不同密度的杉木毛竹混交林及其人工纯林进行调查 ,依据生态学原理 ,分析了各混交林及纯林的林分生长状况、单株和林分生物量变化以及林分的空间分布格局演变 .结果表明 :杉木密度为 1 80 0株· hm-2的混交林中 ,营养空间利用充分 ,叶量占总生物量的比例达 1 7.70 %;生物量最大为 78.43t· hm-2 ,生长最好 ,表现出较高的林分生产力和林分生长量 ,混交效果最好 .

Based on the investigated data from pure forests and their mixed forests of Chinese fir and Phyllostachys heterocycla cv Pubescens with different mixed density, the stand growth condition and construction of organ biomass of individual and stand were analyzed The results showed that the mixed forest with 1 800 individuals Chinese fir per hectare made the best use of nutrient space and its biomass of leaf accounted for 17 70% of the total biomass, which had the best mixed effects, productivity and highest biomass(78 43 t·hm\+\{-2\})