四川雪宝顶国家级自然保护区连香树资源现状及保护

The Current Status and Protection of Cercidiphyllum japonicum Resources in Sichuan Xuebaoding National Nature Reserve

通过文献查询、访问、样线及样方调查法,调查了雪宝顶保护区内连香树的分布、种群结构、更新情况。调查结果表明,保护区分布有连香树894株,分布于海拔1 600~2 400 m范围内,集中分布于保护区内的木梳坝与杜平坝,分别为174株与397株,占总数的19.46%与44.41%;胸径在5~45 cm之间的有618株,占总数的69.13%;连香树主要分布于东、东北、北、西及西北坡向,占总数的72.97%。

Based on the literature search, interview, sample line and sample plot investigation, studies were made of the distribution, population structure and regeneration condition of Cercidiphyllum japonicum resources in Xuebaoding National Nature Reserve. The results showed that(1) there were 894 Cercidiphyllum japonicum plants in the Reserve,which were distributed in the elevation range of 1 600~2 400 meters;(2) there were 174 and 397 Cercidiphyllum japonicum plants in Mushuba and Dupingba respectively, accounting for 19.46% and 44.41% of the total;(3) there were618 Cercidiphyllum japonicum plants with DBH between 5~45 cm, accounting for 69.13% of the total;(4)Cercidiphyllum japonicum trees were mainly distributed in the east, northeast, north, west and northwest slopes,accounting for 72.97% of the total.