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1973—1981年对450亩衰败毛竹(Phyllostachys pubescens)林,采取封山育竹、砍杂垦复、合理留疏竹笋、调整林分结构、摇梢防冰压、施肥改土等综合技术措施,经济效益和生态效益是非常显著的,综合表现在竹林立竹度提高3.15倍,眉围增大0.25倍,竹全高增高0.29倍,枝下高提高0.43倍,叶面积指数增加4.43倍,单位面积竹材总产量增加4.65倍,年产量接近全国高产林分水平,净增产值每亩近300元。此外,还形成新的森林环境,改善了林地小气候,土壤结构和肥力也得到了改良。
In 1973-1981, 450 mu Phyllostachys pubescens forest was afforested and afforestation was carried out. The comprehensive technical measures such as sealing and bamboo growing, chopping and reclamation, bamboo shoots reasonably, adjusting the stand structure, anti-ice-pressing and soil fertilization were applied. Economic benefits and ecological benefits are very significant. The comprehensive performance is as follows: the bamboo stand degree increased by 3.15 times, the eyebrow circumference increased by 0.25 times, the bamboo total height increased by 0.29 times, the branch height increased by 0.43 times, the leaf area index increased by 4.43 times, the unit area 4.65 times the total output of bamboo increased, the annual output close to the level of the country’s high-yielding forest, net output value of nearly 300 yuan per mu. In addition, a new forest environment has been created that improves the microclimate of the woodlands and the soil structure and fertility have also been improved.