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为了探讨适地适树问题,我县于1983年4—6月对不同立地类型及不同树种的生长情况进行了调查,并从轻壤、沙壤和沙质土地上分别选择了毛白杨、旱柳、榆树、刺槐、臭椿、泡桐共26株树木进行了树干解析,现分几个问题叙述如下: 一、自然、地理概况 我县位于河北省中部,海拔50—100米,大部地区地下水位深7—14米。老磁河、滹沱河横贯全境,把我县土地分割成
In order to explore the suitable tree-fitting problem, the county conducted a survey on the growth of different site types and different tree species from April to June 1983, and selected Populus tomentosa, Salix matsutake , Elm, acacia, Ailanthus, Paulownia tree trunk analysis of a total of 26, are divided into several questions are described below: First, the natural and geographical overview I County is located in central Hebei Province, 50-100 meters above sea level, most of the groundwater level deep 7-14 meters. The old magnetic river, Hutuo River across the whole territory, into my county land into