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一、概况众所周知,意大利的杨树速生丰产林是世界闻名的。早在第二次世界大战之前,他们就开始注意杨树的研究和推广工作,国家纤维和纸张公司于1937年在波河平原埃蒙特大区、卡萨莱、蒙菲拉多建立了世界上第一个杨树研究中心。不久,在皮卡罗教授的领导下选育出了抗早春落叶病的速生杨树品种“Ⅰ—214”,为杨树速生丰产林的发展奠定了基础。二次世界大战后,国内木材生产量远远不能满足工业发展的需要,进口量逐年加大。为了解决这一问题,意大利一方面加强杨树优良品种的研究、选育、推广工作,另一方面从国家纤维和纸张公司所属企业的产值中提取3％的资金用于杨树速生丰产林的栽培。截止1985年底,他们已有经国家鉴定
First, the profile As we all know, the Italian poplar fast growing forest is world-renowned. As early as before World War II, they began to pay attention to the research and popularization of poplar. The State Fiber and Paper Company established the world in 1937 in the Pope Plains of Emmental, Casale, and Montillado The first poplar research center. Shortly afterwards, under the leadership of Prof Picarro, a fast-growing poplar variety “I-214” resistant to early spring deciduous diseases was bred and laid the foundation for the development of fast-growing high-yield poplar forests. After World War II, the domestic production of wood is far from meeting the needs of industrial development and the volume of imports has been increasing year by year. In order to solve this problem, Italy, on the one hand, strengthened the research, breeding and popularization of poplar fine varieties; on the other hand, it took 3% of the output value of enterprises belonging to the state fiber and paper companies for poplar fast-growing and high-yield forest Cultivation. As of the end of 1985, they have been identified by the state