宁夏南部黄土丘陵区河北杨和新疆杨优树资源调查及开发利用探讨

Survey and Utilizaion of Superior Resources of Populus Hopeiensis and Populus Alba Var. Pyramidalis in Loess Hilly Area of Southern Ningxia

在2006年开展全自治区境内林木种质资源清查工作中,对宁夏南部黄土丘陵区河北杨和新疆杨进行了优树选择。采用3～5株优势木法共选出优树13株。文章介绍了调查方法和结果,就这些优树的优良特性进行了评价,并就这些优树资源的保存、表型测定及开发利用的思路进行了阐述。

In the survey of the forest germplasm resources in Ningxia conducted in 2006 plus tree selection was made among Populus hopeiensis and Populus alba var.pyramidalis in loess hilly area of southern Ningxia.Totally 13 trees were selected by using the elite selection of 3~5 superior trees method.The process and results of the survey are presented and an appraisal was made on the excellent characteristics of these trees.A discussion was made on the ideas of germplasm resources conservation,phenotypic determination as well as their development and utilization.