坡向与坡位对雷竹竹笋产量的影响

采用随机区组试验设计法调查雷竹在不同坡向与坡位的生长情况,共调查45个雷竹标准地,统计结果为出笋数14 625~26 625个/hm2、鲜笋产量1.90~7.11 t/hm2、平均单笋重120.2~298.9 g。通过对比分析,结果表明:坡向和坡位对雷竹的出笋数、鲜笋产量和平均单笋重均有极显著影响,坡向与坡位处理之间交互作用引起的鲜笋产量存在极显著差异。经营雷竹林宜选择东南或西南坡、下坡的组合或南坡、下坡组合为好。本文为雷竹造林时选择适生坡向和坡位提供了参考。

Effect of Slope Aspect and Slope Position on Yield of Phyllostachys praecox cv. Prevernalis Bamboo Shoots

Using randomized block design method to survey growth situation of Phyllostachys praecox cv. Prevernalis in different growth aspect and slope position, a total of 45 Phyllostachys praecox cv.Prevernalis standard were surveyed. The statistical results showed that, the number of bamboo shoots was 14 625-26 625 per hm^2,fresh bamboo shoots yield was 1.90 -7.11 t/hm^2,and the average single shoots weight was 120.2-298.9 g.By contrast, the results showed that, slope aspect and slope position had significant impact on the number of bamboo shoots, fresh bamboo shoots yield and the average single shoots weight of Phyllostachys praecox cv. Prevernalis,fresh bamboo shoots yield had very significant difference of interaction between slope aspect and slope position. PhyUostachys praecox cv. Prevernalis cuhivation should choose downhill of southeast or southwest slope,or southern downhill slope. This paper provide the reference for selecting the appropriate slope aspect and slope position of PhyUostachys praecox cv. Prevernalis.