乔木林不同郁闭度对种植 1 年内绒毛方竹生长情况的影响.

[Objective] In order to explore the impact of tree canopy density on the growth of Chimonobambusa quadrangularis, expand the space for artificial planting of Chimonobambusa quadrangularis, and improve forest productivity. [Method] An experiment was conducted at the Shuifu Tongluoba Bamboo Industry Professional Cooperative to plant Chimonobambusa utilis Rongmao Fangzhu under the forest. Five small areas with different canopy densities were designed for the upper layer of trees, and two treatments were used; non covered plastic film and covered plastic film. After planting for one year, a random sampling method was used to select 10 clusters of bamboo, and their bamboo ground diameter, height, number of bamboo shoots, number of shooting shoots and diameter of bamboo shoots were investigated. [Result] The results showed that without covering plastic film, the average ground diameter of bamboo was 2.27 mm/clump, the average height of bamboo was 0.28 m/clump, the average number of bamboo shoots was 5.14, the average number of shooting shoots was 3.52, and the average ground diameter of bamboo shoots was 3.92 mm/clump; When covered with plastic film, the average ground diameter of bamboo is 2.77 mm/clump, the average height of bamboo is 0.33 m/clump, the average number of bamboo plants is 3.98, the average number of bamboo shoots is 2.88, and the average ground diameter of bamboo shoots is 4.52 mm/clump. [Conclusion] Through F-test and other analysis, the following conclusions are drawn the canopy density of the upper layer arbor forest has a significant impact on the diameter growth, height growth, number of mature bamboo trees, number of shoots, and ground diameter of bamboo shoots within one year of planting. However, by covering with plastic film, the impact of the canopy density of the upper layer arbor on the growth of Chimonobambusa utilis Rongmao Fangzhu can be reduced, especially the impact of the high canopy density of the upper layer arbor on the growth of Chimonobambusa utilis Rongmao Fangzhu. [ABSTRACT FROM AUTHOR]