Impacts of Differing Grazing Rates on Canopy Structure and Species Composition in Hulunber Meadow Steppe
文献类型：期刊论文
| 作者 | Yan, Ruirui; Xin, Xiaoping; Yan, Yuchun; Wang, Xu; Zhang, Baohui; Yang, Guixia; Liu, Shimin2,3; Deng, Yu1; Li, Linghao5
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| 刊名 | RANGELAND ECOLOGY & MANAGEMENT
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| 出版日期 | 2015 |
| 卷号 | 68期号:1页码:54-64 |
| 关键词 | cattle herbivory canopy biomass compensatory growth life form intermediate grazing effects relative dominance of species |
| ISSN号 | 1550-7424 |
| DOI | 10.1016/j.rama.2014.12.001 |
| 文献子类 | Article |
| 英文摘要 | In this study, the impacts of cattle grazing with differing grazing rates on species composition, canopy structural traits, standing crop of canopy biomass, and plant species diversity were examined in a meadow steppe of the Hulunber grasslands, Northeastern China. Six stocking-rate treatments (0, 0.23, 0.34, 0.46, 0.69, and 0.92 AU.ha(-1)) with three replicates were established, and observations were conducted from 2009 to 2011. Our findings demonstrate that short-term grazing substantially altered the species composition and relative dominance, standing crop of aboveground biomass, and canopy structural traits, whereas no significant changes in species diversity and evenness occurred in response to different-rated grazing in this meadow steppe, which has a long-term evolutionary grazing history and high-resources availabilities. We found that perennial graminoid significantly decreased, while forbs and annuals increased at the same time, with increasing grazing intensity and duration; canopy height and coverage decreased substantially with increasing stocking rates, whereas significant changes in plant density occurred only at heavy grazing in the second and third years; and significant negative linear relations were found between the standing crop of biomass and grazing intensity in each individual year or for 3 years on average. Significantly highest species richness and canopy dominance occurred only at the intermediate grazing rate in the third year, and intermediate grazing intensity also maintained a highly constant standing crop of canopy biomass in the 3 years, all being in accordance with the intermediate disturbance hypothesis. Our findings imply that monitoring changes in species composition, canopy traits, and standing crop of biomass in grassland communities can provide important references for assessing current grazing management scenarios and conducting timely adaptive practices to maintain the long-term ability of grassland systems to perform their ecological functions. (C) 2015 Published by Elsevier Inc. on behalf of Society for Range Management. |
| 学科主题 | Ecology ; Environmental Sciences |
| 出版地 | LAKEWOOD |
| 电子版国际标准刊号 | 1551-5028 |
| WOS关键词 | VEGETATION DYNAMICS ; COMMUNITY STRUCTURE ; DIVERSITY ; RESPONSES ; CATTLE ; GRASSLANDS ; RANGELANDS ; PLANTS ; LAND |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000351949300006 |
| 出版者 | SOC RANGE MANAGEMENT |
| 资助机构 | International Science and Technology Cooperation Project [2012DFA31290] ; National Natural Science Foundation of China [41201199] ; public sector projects in the Ministry of Agriculture [201003019, 201003061, 200903060, 201303060] ; national high-tech research and development projects (863) [2012AA102003-4] ; major state basic research development program of China (973 Program) [2010CB833502] ; basic special funding from the central public welfare scientific research institutes [202-21] ; Chinese Ministry of Agriculture |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/25843]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Western Australia, Inst Agr, Nedlands, WA 6009, Australia 2.Univ Western Australia, Sch Anim Biol, Nedlands, WA 6009, Australia 3.Chinese Acad Agr Sci, Hulunber Grassland Ecosyst Res Stn, Lab Grassland Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 5.Gansu Agr Univ, Lanzhou 730070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Ruirui,Xin, Xiaoping,Yan, Yuchun,et al. Impacts of Differing Grazing Rates on Canopy Structure and Species Composition in Hulunber Meadow Steppe[J]. RANGELAND ECOLOGY & MANAGEMENT,2015,68(1):54-64. |
| APA | Yan, Ruirui.,Xin, Xiaoping.,Yan, Yuchun.,Wang, Xu.,Zhang, Baohui.,...&Li, Linghao.(2015).Impacts of Differing Grazing Rates on Canopy Structure and Species Composition in Hulunber Meadow Steppe.RANGELAND ECOLOGY & MANAGEMENT,68(1),54-64. |
| MLA | Yan, Ruirui,et al."Impacts of Differing Grazing Rates on Canopy Structure and Species Composition in Hulunber Meadow Steppe".RANGELAND ECOLOGY & MANAGEMENT 68.1(2015):54-64. |
入库方式： OAI收割
来源：植物研究所
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