[1]马涛,周金星,张旭东,等.新建青藏铁路沿线各生态区植被分布特征研究初探[J].水土保持研究,2007,14(03):150-154.
　MA Tao,ZHOU Jin-xing,ZHANG Xu-dong,et al.Preliminary Studies on Characteristic of Vegetations Distribution Along the Line of Qinghai-Tibetan Railway[J].Research of Soil and Water Conservation,2007,14(03):150-154.
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新建青藏铁路沿线各生态区植被分布特征研究初探

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 14 期数: 2007年03期 页码: 150-154 栏目: 出版日期: 1900-01-01
Title:
Preliminary Studies on Characteristic of Vegetations Distribution Along the Line of Qinghai-Tibetan Railway
作者:
马涛1,2, 周金星2, 张旭东2, 巴特尔·巴克2, 李冬雪2
1. 西南大学资源环境学院, 重庆, 400716;
2. 中国林业科学研究院林业研究所, 国家林业局林木培育实验室, 北京, 100091
Author(s):
MA Tao1,2, ZHOU Jin-xing2, ZHANG Xu-dong2, Batur Bake2, LI Dong-xue2
1. College of Resource and Environmental Science, Southwest University, Chongqing 400716, China;
2. Research Institute of Forestry, Chinese Academy of Forestry, Silvicultural Laboratory of Forestry, Beijing 100091, China
关键词:
新建青藏铁路; 格尔木-拉萨段; 植被分布; β多样性
Keywords:
Qinghai-Tibetan railway; Geermu-Lhasa section; vegetation distribution; β-diversity
分类号:
X171.1;U212
摘要:
新建青藏铁路特殊的地理位置和生态环境的特殊性、敏感性及脆弱性决定了植被恢复和重建的重要性.通过实地考察，采用β多样性分析了青藏铁路沿线(格尔木-拉萨段)植被生物多样性及生境分割程度，并讨论了环境因素对植被分布的影响.结果表明植被物种及优势种种数均随海拔高度的升高而增大;从整体看，铁路沿线植被β多样性在相邻群落间的指数值要比不相邻群落间的指数值小，但也存在不符合此规律的情况，如一、三生态类型区间的Whittaker指数值(2.0)小于一、二生态类型区间的Whittaker指数值(2.12)，这可能与各生态类型区内人为因素及环境因素的影响有关;年平均温度、年均降水量以及土壤含水量对物种丰富度及生物多样性指数有一定的影响;人类活动也是植被丰富度的影响因素之一.
Abstract:
The specialty,sensitivity and vulnerability of geographical and ecological environment of the Qinghai-Tibetan Railway show the importance of vegetation restoration and rebuild.According to field investigation,β-diversity were used for analyze vegetation distribution along the(Geermu-Lhasa section of) Qinghai-Tibetan Railway.The results showed that the higher elevation the more vegetative varieties and the dominant vegetation amount.See from the whole,the β-diversity of vegetations along the railway shows low value between bordered community and high value between unbordered community,but there have circumstances fall short of the rule.Such as,the Whittaker value of the first ecological section with the third ecological section(2.05) less than the first ecological section with the second ecological section(2.12),the reason may be from human and the environmental factor.Annual average temperature,precipitation and soil moisture content have significant influences on vegetation diversity.Human being is one influencing factor for vegetation enrichment.

参考文献/References:

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备注/Memo

收稿日期:2006-8-10
基金项目:铁道部科技研究开发计划基金项目"青藏铁路灌丛植被生态恢复技术研究与示范(2004G009)"
作者简介:马涛(1983- )，男，甘肃天水人，硕士研究生，主要研究方向：流域治理;

更新日期/Last Update: 1900-01-01