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搞好杨树速生丰产林基地建设,是在短时期内,培育速生、高产优质林木,尽快解决用材不足的一项重大措施。我旗从1979年起开始探讨速生丰产林基地建设,目前已进入了一个新的发展阶段。现就杨树速生丰产林栽培技术中的几个问题提出看法,共同探讨。一、选栽优良品种选栽优良品种是保证速生、优质、高产的关键。由于杨树的品种繁多,生态特性不同,必须根据本地区的水热因素(如年降水量、年平均气温、干湿度、积温、温暖指
Improving poplar fast growing forest base construction, is in a short period of time, cultivate fast-growing, high-yielding high-quality trees, as soon as possible to solve the shortage of timber is a major measure. Since 1979, I started to explore the construction of fast-growing and high-yield forest base and has now entered a new stage of development. Now poplar fast-growing and high-yielding forest cultivation techniques in several opinions, to discuss. First, the election of fine varieties of cultivated elite varieties is to ensure fast-growing, high-quality, high yield the key. Due to the variety of poplar and different ecological characteristics, poplar must be based on the hydrothermal factors in the region (such as annual precipitation, annual average temperature, humidity, accumulated temperature, warmth