Long-term vegetation dynamics driven by climatic variations in the Inner Mongolia grassland: findings from 30-year monitoring
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- 作者：Zhiyong Li ; Wenhong Ma ; Cunzhu Liang ; Zhongling Liu ; Wei Wang…
- 关键词：Climate change ; Community composition ; Functional group ; Inner Mongolia grassland ; Long ; term dynamic
- 刊名：Landscape Ecology
- 出版年：2015
- 出版时间：November 2015
- 年：2015
- 卷：30
- 期：9
- 页码：1701-1711
- 全文大小：2,682 KB
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Z - 作者单位：Zhiyong Li (1) (3)
Wenhong Ma (1) (3)
Cunzhu Liang (1) (3)
Zhongling Liu (1)
Wei Wang (1)
Lixin Wang (2) (3)
1. Department of Ecology, College of Life Sciences, Inner Mongolia University, Hohhot, 010021, China
3. Sino-US Center for Conservation, Energy, and Sustainability Science, Inner Mongolia University, Hohhot, 010021, China
2. College of Environment & Resources, Inner Mongolia University, Hohhot, 010021, China - 刊物类别：Biomedical and Life Sciences
- 刊物主题：Life Sciences
Landscape Ecology
Plant Ecology
Forestry Management
Forestry
Ecology
Plant Sciences - 出版者：Springer Netherlands
- ISSN：1572-9761
文摘
Long-term monitoring of plant community composition and productivity provides evidence of how ecosystems respond to climate change. This study investigated the long-term (1981-011) dynamics of plant species richness (SR) and community composition of a temperate grassland in Inner Mongolia, China, after the exclusion of livestock grazing. During the 30 years, SR increased between 1981 and 1991, and then declined from 1992 to 2011 mainly because of the loss of C3 forbs as a result of decreasing rainfall and increasing temperature. The relative abundance, measured as relative biomass (RB), of plant functional groups also showed a similar temporal pattern. There was a shift in the RB of both dominant species and functional groups. As temperature increased with decreasing rainfall during the last 20 years of the study period, the abundance of C3 forbs decreased, while C4 grasses increased. However, shrub species did not show any significant pattern in their dynamics. Redundancy analysis indicated that the species composition and plant relative abundance of the Inner Mongolian grassland were affected by both precipitation and temperature. Our findings help us better understand how grassland ecosystems respond to future climate change on the Mongolian Plateau where the climate is projected to be drier and hotter in the upcoming decades. Keywords Climate change Community composition Functional group Inner Mongolia grassland Long-term dynamic