Arid
DOI10.1016/j.agee.2018.05.014
Grazing induced changes in plant diversity is a critical factor controlling grassland productivity in the Desert Steppe, Northern China
Zhang, Ruiyang1,2; Wang, Zhongwu1; Han, Guodong1; Schellenberg, Michael P.2; Wu, Qian1; Gu, Chen1,2
通讯作者Han, Guodong
来源期刊AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
EISSN1873-2305
出版年2018
卷号265页码:73-83
英文摘要

The desert steppe is a large component of the semi-arid grassland ecosystem in northern China, and provides significant resources for livestock production. However, overgrazing is regarded as one of main causes of its degradation and desertification over recent decades. Quantifying the direct and indirect effects of grazing disturbance on plant community productivity in the desert steppe ecosystem can provide insights into appropriate measures for the restoration of degraded grassland and biodiversity conservation. Here, we examine the effects of four grazing intensity treatments: no grazing (control), light grazing (LG), moderate grazing (MG) and heavy grazing (HG) on the plant community and soil nutrients with sheep grazing over 12 years in a desert steppe in Inner Mongolia, northern China. The results showed that increasing grazing intensity resulted in decreased species richness, Shannon-Wiener and Pielou’s index, as well as above- and belowground biomass. Soil moisture, nitrogen, available potassium and soil organic carbon were not affected (P > 0.05) by grazing disturbance. In addition, grazing disturbance had a greater indirect effect on aboveground biomass via plant diversity. Consequently, plant diversity is a key indirect factor that determines community productivity in response to grazing disturbance. Reducing grazing pressure can contribute to maintaining relatively high species diversity and productivity in the desert steppe of northern China.


英文关键词Desert steppe Stocking rate Species diversity Productivity Soil nutrients
类型Article
语种英语
国家Peoples R China ; Canada
收录类别SCI-E
WOS记录号WOS:000443664900010
WOS关键词INNER-MONGOLIA STEPPE ; SOIL PROPERTIES ; SPECIES-DIVERSITY ; TYPICAL STEPPE ; RESPONSES ; VEGETATION ; INTENSITY ; COMMUNITIES ; ECOSYSTEM ; BIOMASS
WOS类目Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向Agriculture ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/207426
作者单位1.Inner Mongolia Agr Univ, Key Lab Forage Cultivat Proc & High Efficient Uti, Key Lab Grassland Resources,Minist Agr China, Coll Grassland Resources & Environm,Minist Educ C, 29 Erdos St, Hohhot 010011, Inner Mongolia, Peoples R China;
2.Agr & Agri Food Canada, Swift Current Res & Dev Ctr, 1 Airport Rd,Box 1030, Swift Current, SK S9H 3X2, Canada
推荐引用方式
GB/T 7714
Zhang, Ruiyang,Wang, Zhongwu,Han, Guodong,et al. Grazing induced changes in plant diversity is a critical factor controlling grassland productivity in the Desert Steppe, Northern China[J],2018,265:73-83.
APA Zhang, Ruiyang,Wang, Zhongwu,Han, Guodong,Schellenberg, Michael P.,Wu, Qian,&Gu, Chen.(2018).Grazing induced changes in plant diversity is a critical factor controlling grassland productivity in the Desert Steppe, Northern China.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,265,73-83.
MLA Zhang, Ruiyang,et al."Grazing induced changes in plant diversity is a critical factor controlling grassland productivity in the Desert Steppe, Northern China".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 265(2018):73-83.
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