Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.19189/MaP.2017.OMB.303 |
Effects of grazing pressure on plant species composition and water presence on bofedales in the Andes mountain range of Bolivia | |
Cochi Machaca, N.1; Condori, B.2; Rojas Pardo, A.1; Anthelme, F.3,4,5; Meneses, R. I.4,5,6; Weeda, C. E.7; Perotto-Baldivieso, H. L.8 | |
通讯作者 | Perotto-Baldivieso, H. L. |
来源期刊 | MIRES AND PEAT
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ISSN | 1819-754X |
出版年 | 2018 |
卷号 | 21 |
英文摘要 | Bofedales are high-Andean peatland plant communities with high capacity for water retention, which are regarded as oases of biodiversity. These areas have great social and economic value for livestock grazing, which plays an important role in their vegetation dynamics. However, the effects of increased livestock pressure on vegetation composition and surface water have not yet been clarified. The goal of this study was to assess the impact of current grazing practices on bofedal vegetation, species diversity and function. Specifically, the study aimed to (1) quantify carrying capacity and stocking rate in grazed bofedales and (2) quantify the effects of grazing pressure on plant composition and the extents of bare soil and surface water. Biomass and stocking rate estimates for 25 bofedales along the Cordillera Real (Tropical Andes, Bolivia) showed that all bofedales were overgrazed (carrying capacity/stocking rate (CC/SR) < 1). Regression analyses showed significant decreases in number of plant species, species dominance, diversity and percent surface water as CC/SR declined (p < 0.05). Bofedales are negatively affected by increased grazing pressure and potentially affected by changes in livestock species. These pressures, combined with land use changes and climate change, could result in long-term negative effects for the ecological functioning and sustainability of bofedales. |
英文关键词 | carrying capacity high Andean wetlands overgrazing stocking rate vegetation diversity |
类型 | Article |
语种 | 英语 |
国家 | Bolivia ; France ; Chile ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000446692900003 |
WOS关键词 | CORDILLERA REAL ; CLIMATE-CHANGE ; DISTICHIA-MUSCOIDES ; TROPICAL ANDES ; WETLANDS ; VEGETATION ; DYNAMICS ; COMMUNITIES ; PEATLANDS ; MANAGEMENT |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | French National Research Institute for Sustainable Development |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/211690 |
作者单位 | 1.Alternat Agr ALTAGRO, La Paz, Bolivia; 2.Inst Nacl Innovac Agr & Forestal, La Paz, Bolivia; 3.Univ Montpellier, CNRS, UMR AMAP, IRD,CIRAD,INRA, Montpellier, France; 4.Univ Mayor San Andres, Herbario Nacl Bolivia, La Paz, Bolivia; 5.Museo Nacl Hist Nat, La Paz, Bolivia; 6.Univ Catolica Norte, Programa Doctorado Antropol, San Pedro De Atacama, Chile; 7.Texas A&M Univ, King Ranch Inst Ranch Management, Kingsville, TX USA; 8.Texas A&M Univ, Caesar Kleberg Wildlife Res Inst, 700 Univ Blvd,MSC218, Kingsville, TX 78363 USA |
推荐引用方式 GB/T 7714 | Cochi Machaca, N.,Condori, B.,Rojas Pardo, A.,et al. Effects of grazing pressure on plant species composition and water presence on bofedales in the Andes mountain range of Bolivia[J]. French National Research Institute for Sustainable Development,2018,21. |
APA | Cochi Machaca, N..,Condori, B..,Rojas Pardo, A..,Anthelme, F..,Meneses, R. I..,...&Perotto-Baldivieso, H. L..(2018).Effects of grazing pressure on plant species composition and water presence on bofedales in the Andes mountain range of Bolivia.MIRES AND PEAT,21. |
MLA | Cochi Machaca, N.,et al."Effects of grazing pressure on plant species composition and water presence on bofedales in the Andes mountain range of Bolivia".MIRES AND PEAT 21(2018). |
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