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研究了4种伐桩处理强度(0株/hm~2、225株/hm~2、450株/hm~2、675株/hm~2)对毛竹林生产力的影响。结果表明:伐桩处理可以显著提高毛竹用材林的生产力和竹材质量;随伐桩处理强度加大,新竹生物量、新竹质量呈稳定提高的趋势;伐桩处理强度为675株/hm~2的处理效果优于其他处理强度;在伐桩处理强度为675株/hm2的毛竹林中,新竹生物量高达35.4 t/hm~2,较伐桩未处理林地提高了27.57%,大径级(DBH>10 cm)新竹密度是伐桩未处理林地的1.43倍,新竹胸高处节间长度比伐桩未处理林地增加1.8 cm。此外,伐桩处理能显著提高中、小径级新竹的品质,继而提高毛竹材用林培育的整体效益。
The effects of four treatments on the productivity of Phyllostachys heterocycla cv. Pubescens plantations were studied. The results showed that the cutting pile treatment could significantly improve the productivity and the bamboo quality of the timber plantation. With the increase of the cutting pile strength, the biomass and the quality of the new bamboo tended to increase steadily. The strength of the pile cutting treatment was 675 plants / hm ~ 2 Compared with untreated forest land, the biomass of Hsinchu reached 35.4 t / hm ~ 2, increased by 27.57% compared with the untreated forest, and the DBH> 10 cm). The density of Hsinchu was 1.43 times of that of untreated forest. The length of internodes of chest height of Hsinchu increased 1.8 cm than that of untreated forest. In addition, stump pile treatment can significantly improve the quality of middle and small diameter Hsinchu, and then improve the overall benefits of bamboo forest cultivation.