中国科学院西北高原生物研究所机构知识库
Advanced  
NWIPB OpenIR  > 中国科学院西北高原生物研究所  > 期刊论文
题名: The effect of land management on plant community composition, species diversity, and productivity of alpine Kobersia steppe meadow
作者: Wang, WY; Wang, QJ; Wang, HC
刊名: ECOLOGICAL RESEARCH
出版日期: 2006-03-01
卷号: 21, 期号:2, 页码:181-187
关键词: alpine steppe meadow ; land degradation ; rehabilitation ; species diversity ; productivity
学科分类: 生物科学
文章类型: Article
中文摘要: Grassland degradation is widespread and severe on the Tibet Plateau. To explore management approaches for sustainable development of degraded and restored ecosystems, we studied the effect of land degradation on species composition, species diversity, and vegetation productivity, and examined the relative influence of various rehabilitation practices (two seeding treatments and a non-seeded natural recovery treatment) on community structure and vegetation productivity in early secondary succession. The results showed: (1) All sedge and grass species of the natural steppe meadow had disappeared from the severely degraded land. The above-ground and root biomass of severely degraded land were only 38 and 14.7%, respectively, of those of the control. So, the original ecosystem has been dramatically altered by land degradation on alpine steppe meadow. (2) Seeding measures may promote above-ground biomass, particularly grass biomass, and ground cover. Except for the grasses seeded, however, other grass and sedge species did not occur after seeding treatments in the sixth year of seeding. Establishment of grasses during natural recovery treatment progressed slowly compared with during seeding treatments. Many annual forbs invaded and established during the 6 years of natural recovery. In addition, there was greater diversity after natural recovery treatment than after seeding treatments. (3) The above-ground biomass after seeding treatment and natural recovery treatment were 114 and 55%, respectively, of that of the control. No significant differences in root biomass occurred among the natural recovery and seeded treatments. Root biomass after rehabilitation treatment was 23-31% that of the control.
英文摘要: Grassland degradation is widespread and severe on the Tibet Plateau. To explore management approaches for sustainable development of degraded and restored ecosystems, we studied the effect of land degradation on species composition, species diversity, and vegetation productivity, and examined the relative influence of various rehabilitation practices (two seeding treatments and a non-seeded natural recovery treatment) on community structure and vegetation productivity in early secondary succession. The results showed: (1) All sedge and grass species of the natural steppe meadow had disappeared from the severely degraded land. The above-ground and root biomass of severely degraded land were only 38 and 14.7%, respectively, of those of the control. So, the original ecosystem has been dramatically altered by land degradation on alpine steppe meadow. (2) Seeding measures may promote above-ground biomass, particularly grass biomass, and ground cover. Except for the grasses seeded, however, other grass and sedge species did not occur after seeding treatments in the sixth year of seeding. Establishment of grasses during natural recovery treatment progressed slowly compared with during seeding treatments. Many annual forbs invaded and established during the 6 years of natural recovery. In addition, there was greater diversity after natural recovery treatment than after seeding treatments. (3) The above-ground biomass after seeding treatment and natural recovery treatment were 114 and 55%, respectively, of that of the control. No significant differences in root biomass occurred among the natural recovery and seeded treatments. Root biomass after rehabilitation treatment was 23-31% that of the control.
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Ecology
研究领域[WOS]: Environmental Sciences & Ecology
收录类别: SCI
语种: 英语
WOS记录号: WOS:000235754600003
Citation statistics:
内容类型: 期刊论文
URI标识: http://210.75.249.4/handle/363003/1342
Appears in Collections:中国科学院西北高原生物研究所_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
The effect of land management on plant community composition, species diversity, and productivity of alpine Kobersia steppe meadow.pdf(289KB)----开放获取View Download

作者单位: 1.Chinese Acad Sci, NW Plateau Inst Biol, Xining 810001, Peoples R China
2.Qinghai Normal Univ, Coll Life Sci, Xining 810008, Peoples R China
3.Lanzhou Univ, Coll Life Sci, Lanzhou 710000, Peoples R China

Recommended Citation:
Wang Wenying, Wang Qiji, Wang Huichun. The effect of land management on plant community composition, species diversity, and productivity of alpine Kobersia steppe meadow.ECOLOGICAL RESEARCH,2006,21(2):181-187
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wang, WY]'s Articles
[Wang, QJ]'s Articles
[Wang, HC]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wang, WY]‘s Articles
[Wang, QJ]‘s Articles
[Wang, HC]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: The effect of land management on plant community composition, species diversity, and productivity of alpine Kobersia steppe meadow.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!