不同间伐强度对撑绿竹新竹生长的影响

Effect of Different Thinning Intensities on Young Bamboo Growth in Bambusa pervariabilis ×Dend rocalamopsis daii Forest

为探索不同间伐强度对撑绿竹新竹胸径、竹高、产量的影响,在贵州省习水县设置了不采伐(处理A)、中度间伐(处理B)、强度间伐(处理C)3个采伐强度的试验研究。结果表明,处理C的新竹平均胸径低于处理A和处理B,处理A和处理B的新竹竹高均高于处理C,处理B的新竹产量最高为18.15t/hm2,其次是处理A为15.62t/hm2、处理C最低为10.91t/hm2。撑绿竹林中度间伐有利于新生竹的生长发育和产量提高。

To explore the influence of different thinning intensities on the DBH, height and yield of young bamboo in Bambusa pervariabilis xDendrocalamopsis daii forest, 3 thinning intensities were adopted in the experimental study in Xishui City of Guizhou Province, i.e., no thinning （Treatment A）, moderate thinning （Treatment B） and intensive thinning （Treatment C）. The results showed that the DBH of young bamboo under Treatment C was less than Treatment A and Treatment B; the young bamboos under Treatment A and Treatment B had higher height than those under Treatment C. B. pervariabilis xD. daii forest under Treatment B had the highest yield up to 18.15 t/hrn2, followed by the forest under Treatment A and C （15.62 t/hm2 and 10.91 t/hm2）. With the research, it was found that moderate thinning treatment was beneficial to the growth and yield of young bamboo.