毛竹低产林改造试验效益分析

通过对永安市贡川镇的毛竹低产林的改造试验 ,综合评价了改造所带来的生物和经济效益 ,结果表明 :竹林的各项生长指标较改造前均有了很大的提高 ,中壮龄竹比例增加 ,老龄竹比例下降。试验阶段每年单位面积笋产量比改造前增加2 0 6 85 % ,笋的品质也有显著的提高。试验阶段的成本利润率为 97 97% ,低于改造前的水平 ,但纯收入为改造前的 1 6 5倍。

The Benefit Analysis of Phyllostachys pubescens Low-Yield Forest Remake Experiment

The result shows that various growth indexes of Phyllostachys pubescens forests all increase considerably as compared with those before remake,the proportion of young bamboo increases and that of old bamboo decreases.The annual unit area bamboo shoot yield increases by 206.85% as compared with that before remake during the experiment period,the bamboo shoot quality has an evident improvement,too.The cost profit in experiment period is 97.97%,lower than that before remake,but the net income is 1.65 times as large as that before remake.