there arc two merits forpromotion of forestry in China; firstly there are rich treespecies that can provide an abundant gene pool for plan-..tation, and secondly Chinese government is paying agreat attention
《环境保护》（《Environmental Protection》）《安全与环境学报》Journal of Safety and Environment 生物医学与环境科学（英文版） Biomedical and Environmental Sciences 北华大学学报（自然科学版） Journal of Beihua Univer
耗耗和妞妞
