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杨树是一种速生丰产树种,它具有生长快、效益好、销路畅等特点,是农业结构调整的好项目。 杨树是目前用材林树种中生长速度
Poplar is a fast growing tree species, it has the characteristics of fast growth, good efficiency, smooth sales, agricultural restructuring is a good project. Poplar is the current growth rate of timber species