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毛白杨(Populus tomen tosa Ca-nn)是我国特有的优良用材树种,也是我省主要造林树种之一。为摸清我省毛白杨资源状况,为我省大力发展这一优良树种提供可靠的科学依据,我们于1982年至1986年,在全省范围内进行了全面调查,结果如下:一、调查内容与方法根据我省毛白杨分布范围广,栽培点分散等特点,确定以县为调查单位。首先走访当地林业局,收集当地毛白杨有关资料,然后选择该地毛白杨集中分布点进行实地调查。调查内容包括毛白杨的生长,类型变异及土壤、水分条件等情况。具体方法和内容
Populus tomen tosa Ca-nn is a kind of excellent timber species unique to our country, and also one of the main afforestation species in our province. In order to find out the situation of Populus tomentosa resources in our province and provide a reliable scientific basis for our province to vigorously develop this excellent tree species, we conducted a comprehensive survey within the province from 1982 to 1986, and the results are as follows: First, the content of the investigation Methods According to the wide distribution of Populus tomentosa in our province and the dispersal of cultivation sites, it was decided to take counties as the investigation unit. First visit the local forestry bureau, collect the relevant information of the local poplar, and then select the spot distribution of poplar to conduct field investigations. The survey includes the growth of Populus tomentosa, type variation and soil, water conditions and so on. Specific methods and content