宁夏六盘山区华北落叶松优树资源调查与综合评价及开发利用的探讨

摘要

为了更好地开发和利用宁夏华北落叶松优树资源，2006年开展了宁夏主要造林树种种质资源调查，对宁夏六盘山区华北落叶松进行了优树选择，采用优势木法或小样地法选出华北落叶松优树36株。文章介绍了优树调查具体方法和优树的生长状况及优良性状，对优树的综合性状及发展潜力进行初步评价，并就优树资源的保存、表型测定及开发利用等有关问题进行了探讨。%In order to develop and utilize the plus tree resources of Larix principis-rupprechtii Mayr,an investigation was made on /he main afforestation tree species germplasm resources in Ningxia in 2006. The plus trees selection was conducted among Larix principis-rupprechtii Mayr in Liupan mountain area. 36 fine plants of Larix principis-rupprechtii Mayr were selected using dominant tree method or sample method. The methods of fine trees selecting and the growing condition of selected trees are introduced and an evaluation is made on the comprehensive condition and developing potentiality of the fine trees. A research are made on the plants preservation,phenotypic determination as well as their developing and utilizing.