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中国林科院林研所和河北漳河林场合作进行的《沙兰杨短轮伐期定向培育中小径材的研究》成果,于3月中旬在邯郸市通过了鉴定。这项研究始于1978年。科研人员选择适宜的立地环境,利用沙兰杨大苗壮苗,采取集约经营措施,以不同密度进行了多次重复试验。经过十年工作,两次轮伐,对最适密度、萌芽
The results of the “Research on Directional Cultivation of Small and Medium Diameter Saling Poplar Youngsters in Small Rotation Periods” conducted by Lin Institute of Forestry Research Institute of China and Zhanghe Forestry Center of Hebei Province passed the appraisal in Handan City in mid-March. This study began in 1978. Researchers choose the appropriate site environment, the use of Salmonella seedlings strong seedlings, take intensive management measures, conducted at different densities repeatedly tested. After ten years of work, two rounds of cutting, the most appropriate density, budding