NWIPB OpenIR
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
Source PublicationENVIRONMENTAL EARTH SCIENCES
Volume73Issue:5Pages:2497-2503
SubtypeArticle
AbstractA 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.
KeywordAlpine Meadow Seasonal Grazing Optimization Management Qinghai-tibetan Plateau
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000349360600046
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/5452
Collection中国科学院西北高原生物研究所
Corresponding AuthorZhao, XQ (reprint author), Chinese Acad Sci, Northwest Plateau Inst Biol, Xining 810003, Qinghai, Peoples R China.
Affiliation1.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
Recommended Citation
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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