发展速生丰产林,是改善平原农区生态环境,解决木材紧缺,搞活农村商品经济的重要措施之一。为探索杨树丰产林的主要栽培技术,从1978年开始,我们分别在武邑县苏家庄村,景县董庄村及阜城县苗圃场进行了定点试验,现根据试点调查,初步总结如下: 一、树种选择与速生丰产的关系: 树种选择是速生丰产的前题。根据我区春旱多风,土壤偏碱的自然特点,1979年开 The development of fast-growing and high-yielding forests is one of the important measures to improve the ecological environment of plain agricultural areas, solve the shortage of timber and revitalize rural commodity economy. In order to explore the main cultivation techniques of poplar forest, we conducted the fixed-point experiments in Wujian County Sujiazhuang Village, Jingzhuang Dongzhuang Village and Fucheng County Nursery Field respectively from 1978. According to the pilot survey, the preliminary findings are as follows: First, the relationship between tree species selection and fast-growing and high yield: Tree species selection is the fast-growing and yield-rich topic. According to my area spring drought windy, alkaline soil alkaline characteristics, opened in 1979