贵州大沙河自然保护区天然银杉优良母树选择初探

First Exploration in Selection of Cathaya argyrophylla Natural Elite Tree in Dashahe Nature Reserve of Guizhou

在对大沙河自然保护区天然银杉资源全面调查的基础上,采用连续定株监测调查方法,对所选银杉优树进行2009年至2014年结实球果数量、出种量、千粒重、发芽率监测分析,筛选出大沙河自然保护区天然银杉的优良母树(编号为01、02、03、04、05),为进一步研究大沙河自然保护区天然银杉种子特性、种群结构、天然更新及人工保护与繁育等提供科学依据。

Continuous target monitoring was used, based on a comprehensive survey of natural Cathaya argyrophylla resources in Dashahe Nature Reserve. Selected trees of Cathaya argyrophylla were monitoring analyzed in solid cone number, seed output, 1000-grain mass and germination percentage, during 2009 to 2014. Excellent natural Cathaya argyrophylla trees （number in 01, 02, 03, 04, 05） were selected, which can provide scientific basis for further study on seed characteristics, population structure, natural regeneration and artificial protection and breeding of natural Cathaya argyrophylla in Dashahe Nature Reserve.