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在标准地调查基础上 ,结合树干解析 ,对西辽河流域土石山区和黄土丘陵区水蚀严重坡面人工种植的油松纯林种群进行了生长进程分析和枝叶生物量估算
Based on the standard survey and tree trunk analysis, the growth process and leaf and leaf biomass of Pinus tabulaeformis pure plantation planted in water-rocky hills and loess hilly areas of Xiliaohe river basin were studied.