首页 | 本学科首页   官方微博 | 高级检索  
     检索      

宁夏香山荒漠草原区植物群落类型多样性及数量分析
引用本文:尚占环,姚爱兴,龙瑞军,郭旭生,辛明,马文志.宁夏香山荒漠草原区植物群落类型多样性及数量分析[J].甘肃农业大学学报,2004,39(6):644-650.
作者姓名:尚占环  姚爱兴  龙瑞军  郭旭生  辛明  马文志
作者单位:1. 甘肃农业大学草业学院,甘肃,兰州,730070;宁夏大学草业科学研究所,宁夏,永宁,750105
2. 宁夏大学草业科学研究所,宁夏,永宁,750105
3. 甘肃农业大学草业学院,甘肃,兰州,730070;中国科学院西北高原生物研究所,青海,西宁,810001
基金项目:国家自然基金(39960052),教育部骨干教师计划项目,中国科学院百人计划资助
摘    要:在样地调查的数据基础上,对群落分布及类型进行分析。结果表明,香山山地荒漠草原区植被主要为灌丛植被和草本群落植被,符合干旱环境下具有长期放牧史的山地植被发育特征。由于山体岛屿化结构明显、生境碎化严重,植被景观斑块状明显,植被在山体内垂直分布格局不明显,受海拔因素影响较小。灌丛和草本植物群落分布主要受水分梯度差异的影响,不同群落类型的群落多样性有差异,灌丛群落多样性较高。群落数量排序、分类结果与植被生态地理分布以及物种组成分析相吻合。数量分类易于生境解释,因此在群落分布生境分析上有重要意义。灌丛植被在该山地生态系统中处于重要地位,是生态功能维持的主要因子。所以,在本地进行生物多样性保护中应该重点放在灌丛植被。

关 键 词:中卫山羊核心产区  群落类型多样性  PCA  系统聚类分析  生物多样性保护
文章编号:1003-4315(2004)06-0644-07

Diversity and quantitative analysis of plant communities of desert grassland in Xiangshan mountain of Ningxia Province
SHANG Zhan-Huan,YAO Ai-Xing,LONG Rui-Jun, GUO Xu-Sheng,XIN Ming,MA Wen-zhi.Diversity and quantitative analysis of plant communities of desert grassland in Xiangshan mountain of Ningxia Province[J].Journal of Gansu Agricultural University,2004,39(6):644-650.
Authors:SHANG Zhan-Huan  YAO Ai-Xing  LONG Rui-Jun    GUO Xu-Sheng  XIN Ming  MA Wen-zhi
Institution:SHANG Zhan-Huan1,YAO Ai-Xing2,LONG Rui-Jun1,3,2 GUO Xu-Sheng2,XIN Ming2,MA Wen-zhi2
Abstract:Based on the investigation of the large area, the distributing and type of all communities were analyzed. The major vegetation was shrubbery and herbage, fitting the characteristics of the development of mountainous vegetations in arid environment with long-term grazing. The vegetation landscape was distributed with patchion type heavily for the insular mountains and fragmentary habitats. The pattern of vegetation vertical distribution was not obvious in the mountains, and was not severely changed with the altitude. The distribution of shrubbery and herbage was affected by water strongly. Community diversity was different in different community types, and shrubby diversity was higher. The results of quantity classification and ordination of communities were identical with vegetation ecology, geographic distribution and the species components analysis. Classification of quantity could be interpreted with habitat easily, which had important meaning for community distribution and habitat analysis. In the ecosystem of the mountains, the shrubby community was important to maintain the function of ecosystem. It concluded that the shrubby vegetation was the keystone for the biodiversity conservation in the region.
Keywords:the core habitat of Zhongwei Goat  type diversity of communities  PCA  systematic clustering analysis  biodiversity conservation
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号