Abstract:

【Objective】 A reasonable bamboo forest population structure leads to a high and stable yield in bamboo forests. Therefore, our aim was to optimize the population structure of bamboo stands, and consequently, improve shoot yield.【Method】 Using the conventional stocking bamboo conservation method as the control treatment, we evaluated the shooting ability, yield and economic benefit of long-period stocking bamboo conservation forests.【Result】 Under the long-period stocking bamboo conservation mode, cutting one bamboo shoot could increase shoot buds by 1.8 to 3.0 shoot buds. It was also observed that the eight stubble generations were expended during one conservation period and 8.0-10.2 shoots were formed in each stubble generation, which was more than the shoot number from the stocking plant. Additionally, the distance between young bamboo and stocking bamboo was 64.4 cm on average, which was much further than that of 27.0 cm in the control treatment. Furthermore, the shoots emerged 15 days in advance and a delay of 15 days was seen before it stopped producing shoots. Its yearly yield was 37.9 kg per cluster, which is 22.1% higher than that of the control treatment. Moreover, its yearly revenue was 504.3 Yuan per cluster, which is 26.86% higher than that of the control treatment; while its yearly profit was 281.4 Yuan per cluster, which is 68% higher than that of the control treatment.【Conclusion】 The long-period stocking bamboo conservation mode prolonged the shoot period, improved the yield and economic benefits, reduced the number of stocking bamboo plants, and further reduced the labor intensity of bamboo stump removal and old bamboo cutting. The inter-bamboo distance was also more conducive to mechanized operations. The long-period stocking bamboo conservation mode is a simple and practical technical measure that is worth popularizing.

Key words: Dendrocalamopsis oldhami, stocking bamboo conservation, management model, long period stocking, shoot stand