Zhang Ying, Zhang Chaohang, Wang Zuming, Li Haoting, Bao Haofeng, Guan Fengying, Hui Chaomao, Liu Weiyi
College of Forestry, Southwest Forestry University, Kunming 650224, China.
International Center for Bamboo and Rattan, Beijing 100102, China.
Plants (Basel). 2025 Aug 19;14(16):2578. doi: 10.3390/plants14162578.
To improve the efficiency and reduce the cost of traditional sympodial bamboo harvesting, this study evaluated the effects of four harvesting intensities-selective harvesting, one-third clump, one-half clump, and complete clump harvesting-on understory plant diversity in pure stands over a five-year recovery period. A total of 36 species were recorded in the first year, increasing to 71 in the third year and stabilizing at 74 species by year five. Understory α-diversity showed an increasing trend followed by a decline. In the early recovery stage, species diversity was significantly correlated with soil chemical properties ( < 0.05), but no significant correlation was observed in the later stage. Fuzzy membership function analysis indicated that the 1/2 clump harvesting treatment outperformed others, ranking as follows: 1/2 clump > 1/3 clump > selective > complete clump harvesting. These results suggest that 1/2 clump harvesting is optimal for promoting understory vegetation growth, but its positive effects on biodiversity are time-limited, with the plant community showing a trend toward simplification over time.
为提高传统丛生竹采伐的效率并降低成本，本研究评估了四种采伐强度——选择性采伐、三分之一丛、二分之一丛和全丛采伐——对纯林林下层植物多样性在五年恢复期内的影响。第一年共记录到36种植物，第三年增加到71种，到第五年稳定在74种。林下层α多样性呈先增加后下降的趋势。在恢复早期，物种多样性与土壤化学性质显著相关（<0.05），但后期未观察到显著相关性。模糊隶属函数分析表明，二分之一丛采伐处理优于其他处理，排序如下：二分之一丛>三分之一丛>选择性>全丛采伐。这些结果表明，二分之一丛采伐最有利于促进林下层植被生长，但其对生物多样性的积极影响是有限的，随着时间的推移，植物群落呈现出简化的趋势。
