生态学杂志2013，Vol.32Issue(1)：52-58,7.
历山自然保护区秃山白树天然种群生命表
Life table of natural Sinowilsonia henryi var.glabrescens population in Lishan Nature Reserve, Shanxi Province
摘要
Abstract
Sinowilsonia henryi var. glabrescens is a variety of S. henryi, a Chinese endemic and monotypic species, and one of the national second-class protective plants in China, only distribu-ting in the Lishan Mountain Nature Reserve in Shanxi. To better understand the quantitative dy-namics of S. henryi var. glabrescens population and to facilitate its sustainable and steady devel-opment , the methods of plot survey and quadrat investigation were adopted to study the popula-tion structure of S. henryi var. glabrescens in the Reserve. The static life table of the population was compiled, and its age structure, survival curve, mortality curve, disappearance rate curve, survival function curve, cumulative morality function curve, hazard rate function curve, and death density function curve were drawn. In this population, young and infant plants were in lar-ger quantity, while aged ones were fewer, indicating that this population was overall a growing population. Its morality was higher at early stage than at late stage, and peaked between the Ⅱ and Ⅳ age stages. The survival curve was more of Deevey- Ⅱ type, and the survival function curve decreased monotonically while the cumulative morality function curve was in monotonic in-crease , the decreasing or increasing range being higher at early stage that at late stage. The death density function curve was relatively stable, with a higher rate during the v age class. The haz-ard rate function curve was increasing with the growth of age class.关键词
年龄结构/秃山白树/存活曲线Key words
age structure/Sinowilsonia henryi var. glabrescens/survival curve分类
农业科技引用本文复制引用
李豪,张钦弟,苗艳明,杨兆静,毕润成..历山自然保护区秃山白树天然种群生命表[J].生态学杂志,2013,32(1):52-58,7.基金项目
山西省出国留学基金项目(20081073)资助. （20081073）
