生态学杂志2012，Vol.31Issue(1)：23-29,7.
小陇山国家级自然保护区次生林分类、排序及演替
Classification, ordination, and succession of secondary forests in Xiaolongshan National Nature Reserve in west Qinling
摘要
Abstract
Based on the field investigation data and by using two-way indicator species analysis (TWINSPAN) and detrended correspondence analysis (DCA) , a quantitative classification and ordination of the secondary forest communities in the Xiaolongshan National Nature Reserve was conducted, and the spatial distribution patterns of the vegetation communities were studied from the species composition and the ecological relationships of plant communities and environment, aimed to understand the succession of secondary forests in the Reserve, and give a rational environmental explanation. According to TWINSPAN, the forest communities in the Reserve were classified into 12 types. The DCA ordination graph distinctly reflected the ecological significances of the ordination axes. The horizontal axis basically reflected the variation of humidity, which increased gradually from left to right, and the vertical axis basically reflected the temperature gradient , which decreased from down to up. The succession pattern of the secondary forests was in the sequence of Populus davidiana forest → P. Davidiana + Betula platyphylla forest → Quercus alie-na var. Acuteserrata pure forest or mixed forest, with Q. Aliena var. Acuteserrata forest as the cli max community in the process of natural succession.关键词
次生林/演替过程/分类/排序/小陇山国家级自然保护区/西秦岭Key words
secondary forest/succession process/classification/ordination/Xiaolongshan National Nature Reserve/west Qinling分类
农业科技引用本文复制引用
巨天珍,王彦,任海峰,姚晶晶,王蒙,孟凡涛,王继伟..小陇山国家级自然保护区次生林分类、排序及演替[J].生态学杂志,2012,31(1):23-29,7.基金项目
国家自然科学基金地区科学基金项目(41161080)和甘肃省科技支撑计划项目(2010GS05134)资助. （41161080）
