Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| Optimization yak grazing stocking rate in an alpine grassland of Qinghai-Tibetan Plateau, China | |
| Dong, Quan-Ming1,2; Zhao, Xin-Quan2; Wu, Gao-Lin3; Chang, Xiao-Feng3; Zhao, XQ (reprint author), Chinese Acad Sci, Northwest Plateau Inst Biol, Xining 810003, Qinghai, Peoples R China. | |
| 2015-03-01 | |
| 发表期刊 | ENVIRONMENTAL EARTH SCIENCES
 |
| 卷号 | 73期号:5页码:2497-2503 |
| 文章类型 | Article |
| 摘要 | A simple yak (Bos grunniens) production model developed in this study was to evaluate the health of the intensive livestock production system in the three rivers headwaters region, on the Qinghai-Tibetan Plateau. An experiment conducted for 3 years showed that individual yak liveweight gain (kg/head) was negatively related to stocking rate (Sr) (head/ha). Yak liveweight gain per hectare (kg/ha) was modeled as a quadratic function of Sr, with an apparent optimum yak stocking rate (Sr-op). Following the model, the Sr-op rate was 1.67 heads/ha for the warm-season pasture (WSP), 0.72 head/ha for the cool-season pasture (CSP), and 0.63 head/ha for the yearlong periods grazing pastures, respectively. The corresponding maximum carrying capacity (when individual yak live weight gain was equal to zero) was 3.34, 1.44, and 1.26 head/ha for warm-season, cool-season, and yearlong periods grazing pasture, respectively. In comparison with modeled maximum stock carrying capacity, all the cold-season pasture in the three rivers headwaters region were overgrazed. By contrast, only 37.5 % of the warm-season rangeland area overgrazed. It indicated that reconstruction of the proportion of the seasonal rangeland area may be an effective strategy to prevent serious rangeland degradation in this alpine region. Moreover, adjustment of the stoking rate at optimum values may likely improve the income for local herders.; A simple yak (Bos grunniens) production model developed in this study was to evaluate the health of the intensive livestock production system in the three rivers headwaters region, on the Qinghai-Tibetan Plateau. An experiment conducted for 3 years showed that individual yak liveweight gain (kg/head) was negatively related to stocking rate (Sr) (head/ha). Yak liveweight gain per hectare (kg/ha) was modeled as a quadratic function of Sr, with an apparent optimum yak stocking rate (Sr-op). Following the model, the Sr-op rate was 1.67 heads/ha for the warm-season pasture (WSP), 0.72 head/ha for the cool-season pasture (CSP), and 0.63 head/ha for the yearlong periods grazing pastures, respectively. The corresponding maximum carrying capacity (when individual yak live weight gain was equal to zero) was 3.34, 1.44, and 1.26 head/ha for warm-season, cool-season, and yearlong periods grazing pasture, respectively. In comparison with modeled maximum stock carrying capacity, all the cold-season pasture in the three rivers headwaters region were overgrazed. By contrast, only 37.5 % of the warm-season rangeland area overgrazed. It indicated that reconstruction of the proportion of the seasonal rangeland area may be an effective strategy to prevent serious rangeland degradation in this alpine region. Moreover, adjustment of the stoking rate at optimum values may likely improve the income for local herders. |
| 关键词 | Alpine Meadow Seasonal Grazing Optimization Management Qinghai-tibetan Plateau |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| WOS记录号 | WOS:000349360600046 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/5452 |
| 专题 | 中国科学院西北高原生物研究所 |
| 通讯作者 | Zhao, XQ (reprint author), Chinese Acad Sci, Northwest Plateau Inst Biol, Xining 810003, Qinghai, Peoples R China. |
| 作者单位 | 1.Qinghai Acad Anim & Vet Sci, Key Lab Alpine Grassland Ecosyst River Head Water, Xining 810016, Qinghai, Peoples R China 2.Chinese Acad Sci, Northwest Plateau Inst Biol, Xining 810003, Qinghai, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Quan-Ming,Zhao, Xin-Quan,Wu, Gao-Lin,et al. Optimization yak grazing stocking rate in an alpine grassland of Qinghai-Tibetan Plateau, China[J]. ENVIRONMENTAL EARTH SCIENCES,2015,73(5):2497-2503. |
| APA | Dong, Quan-Ming,Zhao, Xin-Quan,Wu, Gao-Lin,Chang, Xiao-Feng,&Zhao, XQ .(2015).Optimization yak grazing stocking rate in an alpine grassland of Qinghai-Tibetan Plateau, China.ENVIRONMENTAL EARTH SCIENCES,73(5),2497-2503. |
| MLA | Dong, Quan-Ming,et al."Optimization yak grazing stocking rate in an alpine grassland of Qinghai-Tibetan Plateau, China".ENVIRONMENTAL EARTH SCIENCES 73.5(2015):2497-2503. |
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