Effects of seasonal grazing on soil respiration in alpine meadow on the Tibetan plateau

2014 ◽  
Vol 30 (3) ◽  
pp. 435-443 ◽  
Author(s):  
S. Cui ◽  
X. Zhu ◽  
S. Wang ◽  
Z. Zhang ◽  
B. Xu ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Soil Respiration ◽  
Alpine Meadow ◽  
The Tibetan Plateau ◽  
Seasonal Grazing

Grazing intensity alters soil respiration in an alpine meadow on the Tibetan plateau

2004 ◽  
Vol 36 (2) ◽  
pp. 237-243 ◽  
Author(s):  
Guangmin Cao ◽  
Yanhong Tang ◽  
Wenhong Mo ◽  
Yuesi Wang ◽  
Yingnian Li ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Soil Respiration ◽  
Alpine Meadow ◽  
Grazing Intensity ◽  
The Tibetan Plateau

scholarly journals Climatic patterns modulate ecosystem and soil respiration responses to fertilization in an alpine meadow on the Tibetan Plateau, China

2014 ◽  
Vol 30 (1) ◽  
pp. 3-13 ◽  
Author(s):  
Jing Jiang ◽  
Peili Shi ◽  
Ning Zong ◽  
Gang Fu ◽  
Zhenxi Shen ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Soil Respiration ◽  
Alpine Meadow ◽  
The Tibetan Plateau

Impacts of seasonal grazing on net ecosystem carbon exchange in alpine meadow on the Tibetan Plateau

2015 ◽  
Vol 396 (1-2) ◽  
pp. 381-395 ◽  
Author(s):  
Caiyun Luo ◽  
Xiaoying Bao ◽  
Shiping Wang ◽  
Xiaoxue Zhu ◽  
Shujuan Cui ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Alpine Meadow ◽  
The Tibetan Plateau ◽  
Carbon Exchange ◽  
Ecosystem Carbon ◽  
Net Ecosystem Carbon Exchange ◽  
Seasonal Grazing ◽  
Ecosystem Carbon Exchange

Sustained increase in soil respiration after nine years of warming in an alpine meadow on the Tibetan Plateau

Geoderma ◽  
2020 ◽  
Vol 379 ◽  
pp. 114641
Author(s):  
Fei Peng ◽  
Wenjuan Zhang ◽  
Chengyang Li ◽  
Chimin Lai ◽  
Jun Zhou ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Soil Respiration ◽  
Alpine Meadow ◽  
The Tibetan Plateau ◽  
Sustained Increase

scholarly journals Warming Changed Soil Respiration Dynamics of Alpine Meadow Ecosystem on the Tibetan Plateau

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Junfeng Wang
Keyword(s):  
Global Warming ◽  
Soil Moisture ◽  
Tibetan Plateau ◽  
Soil Respiration ◽  
Co2 Emission ◽  
Alpine Meadow ◽  
The Tibetan Plateau ◽  
Soil Co2 ◽  
Q10 Value ◽  
Soil Co2 Emission

Alpine meadow system underlain by permafrost on the Tibetan Plateau contains vast soil organic carbon and is sensitive to global warming. However, the dynamics of annual soil respiration (Rs) under long-term warming and the determined factors are still not very clear. Using open-top chambers (OTC), we assessed the effects of two-year experimental warming on the soil CO2 emission and the Q10 value (temperature sensitivity coefficient) under different warming magnitudes. Our study showed that the soil CO2 efflux rate in the warmed plots were 1.22 and 2.32 times higher compared to that of controlled plots. However, the Q10 value decreased by 45.06% and 50.34% respectively as the warming magnitude increased. These results suggested that soil moisture decreasing under global warming would enhance soil CO2 emission and lower the temperature sensitivity of soil respiration rate of the alpine meadow ecosystem in the permafrost region on the Tibetan Plateau. Thus, it is necessary to take into account the combined effect of ground surface warming and soil moisture decrease on the Rs in order to comprehensively evaluate the carbon emissions of the alpine meadow ecosystem, especially in short and medium terms.

scholarly journals Response of Soil Respiration to Grazing in an Alpine Meadow at Three Elevations in Tibet

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Gang Fu ◽  
Xianzhou Zhang ◽  
Chengqun Yu ◽  
Peili Shi ◽  
Yuting Zhou ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Soil Respiration ◽  
Alpine Meadow ◽  
Elevation Gradient ◽  
Major Type ◽  
The Tibetan Plateau ◽  
Total N ◽  
Organic C ◽  
Nitrate N ◽  
Ammonium N

Alpine meadows are one major type of pastureland on the Tibetan Plateau. However, few studies have evaluated the response of soil respiration (Rs) to grazing along an elevation gradient in an alpine meadow on the Tibetan Plateau. Here three fenced enclosures were established in an alpine meadow at three elevations (i.e., 4313 m, 4513 m, and 4693 m) in July 2008. We measuredRsinside and outside the three fenced enclosures in July–September, 2010-2011. Topsoil (0–20 cm) samples were gathered in July, August, and September, 2011. There were no significant differences forRs, dissolved organic C (DOC), and belowground root biomass (BGB) between the grazed and ungrazed soils. Soil respiration was positively correlated with soil organic C (SOC), microbial biomass (MBC), DOC, and BGB. In addition, bothRsand BGB increased with total N (TN), the ratio of SOC to TN, ammonium N (NH4+-N), and the ratio ofNH4+-N to nitrate N. Our findings suggested that the negligible response ofRsto grazing could be directly attributed to that of respiration substrate and that soil N may indirectly affectRsby its effect on BGB.

Responses of ecosystem respiration and its components to fertilization in an alpine meadow on the Tibetan Plateau

2013 ◽  
Vol 56 ◽  
pp. 101-106 ◽  
Author(s):  
Jing Jiang ◽  
Ning Zong ◽  
Minghua Song ◽  
Peili Shi ◽  
Weiling Ma ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Alpine Meadow ◽  
Ecosystem Respiration ◽  
The Tibetan Plateau

Characteristics and scenarios projection of NEE change in an alpine meadow on the Tibetan Plateau

2021 ◽  
Vol 24 (3/4) ◽  
pp. 307
Author(s):  
Mingyuan Du ◽  
Yingnian Li ◽  
Fawei Zhang ◽  
Liang Zhao ◽  
Hongqin Li ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Alpine Meadow ◽  
The Tibetan Plateau
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