不同行间混交比例的杉木、乳源木莲生长状况分析

Analysis of growth status of Cunninghamia lanceolata and Manglietia yuyuanensis with different interrow mixed proportion

明确杉木、乳源木莲行间混交林的适宜混交比例,拓宽提升杉木人工林林分质量的途径。本研究调查分析了福建三明沙县区生态国有林场15年生杉木、乳源木莲纯林和不同比例混交林中各树种的生长状况。结果表明,与纯林相比,各混交处理林分的杉木、乳源木莲均表现出良好的生长状况,以3∶1行间混交林的杉木、乳源木莲生长状况为最好,其林分树种种间生存较为和谐,可形成稳定的复合林分结构,有利于杉木、乳源木莲生长,增强林分的抗逆能力,进而实现林分经营的可持续性。

To clarify the appropriate mixing ratio of the mixed forest between rows of Cunninghamia lanceolata and Manglietia yuyuanensis,and to broaden the ways for improving the quality of C.lanceolata plantations.The growth status of different tree species in 15-year-old pure forest and mixed forest with different proportions of C.lanceolata and M.yuyuanensis were investigated and analyzed in the Shaxian Ecological State-owned Forestry Farm,Sanming City,Fujian Province.The results showed that compared with the pure forest,the mixed forests of C.lanceolata and M.yuyuanensis showed good growth conditions.The growth conditions of C.lanceolata and M.yuyuanensis in the 3∶1 inter row mixed forest were the best,and their inter species survival was more harmonious,forming a stable composite forest structure that was conducive to the growth of C.lanceolata and M.yuyuanensis,enhancing the stress resistance of forest stands,and achieving sustainable forest management.