Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1038/s41598-017-15530-2 |
Grazing exclusion by fencing non-linearly restored the degraded alpine grasslands on the Tibetan Plateau | |
Wu, Jianshuang1,2,3; Feng, Yunfei1; Zhang, Xianzhou1; Wurst, Susanne2; Tietjen, Britta3; Tarolli, Paolo4; Song, Chunqiao5 | |
通讯作者 | Wu, Jianshuang ; Zhang, Xianzhou |
来源期刊 | SCIENTIFIC REPORTS |
ISSN | 2045-2322 |
出版年 | 2017 |
卷号 | 7 |
英文摘要 | Resilience is an important aspect of the non-linear restoration of disturbed ecosystems. Fenced grassland patches on the northern Tibetan Plateau can be used to examine the resistance and resilience of degraded alpine grasslands to grazing and to a changing climate. To examine the non-linearity of restoration, we used moderate resolution imaging spectroradiometer (MODIS) normalized difference vegetation index (NDVI) as a proxy for productivity during a ten-year restoration by fencing. Degraded alpine grasslands exhibited three restoration trajectories: an equilibrium in meadows, a non-linear increase across steppes, and an abrupt impulse in desert-steppes following a slight increase in productivity. Combined with weather conditions, the ten-year grazing exclusion has successfully enhanced the NDVI on the most degraded steppes, but did not do so efficiently on either meadows or desert-steppes. Warming favors the NDVI enhancement of degraded meadows, but higher temperatures limited the restoration of degraded steppes and desert-steppes. Precipitation is necessary to restore degraded alpine grasslands, but more precipitation might be useless for meadows due to lower temperatures and for desert-steppes due to limitations caused by the small species pool. We suggest that detailed field observations of community compositional changes are necessary to better understand the mechanisms behind such non-linear ecological restorations. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; Germany ; Italy ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000414810800025 |
WOS关键词 | CLIMATE-CHANGE ; NORTHERN TIBET ; PRECIPITATION GRADIENT ; GROWING-SEASON ; 3RD POLE ; RESILIENCE ; PRODUCTIVITY ; VEGETATION ; DIVERSITY ; CHINA |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
来源机构 | 中国科学院地理科学与资源研究所 ; University of California, Los Angeles |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/202378 |
作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China; 2.Free Univ Berlin, Inst Biol, Funct Biodivers, Konigin Luise Str 1-3, D-14195 Berlin, Germany; 3.Free Univ Berlin, Inst Biol, Biodivers Theoret Ecol, Altensteinstr 34, D-14195 Berlin, Germany; 4.Univ Padua, Dept Land Environm Agr & Forestry, Agripolis, Viale Univ 16, Legnaro, PD, Italy; 5.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90095 USA |
推荐引用方式 GB/T 7714 | Wu, Jianshuang,Feng, Yunfei,Zhang, Xianzhou,et al. Grazing exclusion by fencing non-linearly restored the degraded alpine grasslands on the Tibetan Plateau[J]. 中国科学院地理科学与资源研究所, University of California, Los Angeles,2017,7. |
APA | Wu, Jianshuang.,Feng, Yunfei.,Zhang, Xianzhou.,Wurst, Susanne.,Tietjen, Britta.,...&Song, Chunqiao.(2017).Grazing exclusion by fencing non-linearly restored the degraded alpine grasslands on the Tibetan Plateau.SCIENTIFIC REPORTS,7. |
MLA | Wu, Jianshuang,et al."Grazing exclusion by fencing non-linearly restored the degraded alpine grasslands on the Tibetan Plateau".SCIENTIFIC REPORTS 7(2017). |
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