Inactive and inefficient: Warming and drought effect on microbial carbon processing in alpine grassland at depth

2021 ◽  
Author(s):  
Erxiong Zhu ◽  
Zhenjiao Cao ◽  
Juan Jia ◽  
Chengzhu Liu ◽  
Zhenhua Zhang ◽  
...  
Keyword(s):  
Alpine Grassland ◽  
Drought Effect ◽  
Microbial Carbon ◽  
Carbon Processing

scholarly journals Microbial carbon processing in oligotrophic Lake Lucerne (Switzerland): results of in situ 13C-labelling studies

2017 ◽  
Vol 136 (2) ◽  
pp. 131-149 ◽  
Author(s):  
J. M. Lammers ◽  
C. J. Schubert ◽  
J. J. Middelburg ◽  
G. J. Reichart
Keyword(s):  
Oligotrophic Lake ◽  
Lake Lucerne ◽  
13C Labelling ◽  
Microbial Carbon ◽  
Carbon Processing

Comparing microbial carbon sequestration and priming in the subsoil versus topsoil of a Qinghai-Tibetan alpine grassland

2017 ◽  
Vol 104 ◽  
pp. 141-151 ◽  
Author(s):  
Juan Jia ◽  
Xiaojuan Feng ◽  
Jin-Sheng He ◽  
Hongbo He ◽  
Li Lin ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Alpine Grassland ◽  
Microbial Carbon

Direct and indirect influences of long-term fertilization on microbial carbon and nitrogen cycles in an alpine grassland

2020 ◽  
Vol 149 ◽  
pp. 107922
Author(s):  
Wenjing Chen ◽  
Huakun Zhou ◽  
Yang Wu ◽  
Jie Wang ◽  
Ziwen Zhao ◽  
...  
Keyword(s):  
Alpine Grassland ◽  
Carbon And Nitrogen ◽  
Microbial Carbon ◽  
Nitrogen Cycles

Predicting Anaerobic Microsites in Soils

2021 ◽  
Author(s):  
Stefan Gerber ◽  
E.N.Jack Brookshire
Keyword(s):  
Soil Moisture ◽  
Soil Column ◽  
Mean Field ◽  
Solute Diffusion ◽  
Co2 Efflux ◽  
Earth System ◽  
Co2 Response ◽  
Closed Form Solutions ◽  
Microbial Carbon ◽  
Carbon Processing

<p>Anaerobic microsites in soils are critical features in the Earth system as they are prime locations for generating powerful greenhouse gases. These processes occur in hot spots and hot moments and are therefore difficult to capture in mean-field approaches. Typically, they are captured as empirical functions of soil moisture.</p> <p>We present a mechanistic upscaling of microsites from single soil particles to the soil column, by considering existing formulations that link the processes of solute diffusion, pore sizes and particle size distributions, and water retention. The upscaling allows to predict probability density functions of volume and surface area of anaerobic microsites, which can then be integrated to the scale of a laboratory soil sample or a field site. Our goal was to make these predictions based on variables typically measured in soils and are routine diagnostic or prognostic variables in Earth system model. While the detailed expressions can only be solved numerically, we found closed-form solutions with little loss of accuracy.  Our result have the necessary hooks for direct implementation of anaerobic microbial carbon processing, methane production and nitrification-denitrification processes in Earth System models. A first application yields two soil moisture-CO2 efflux hypotheses that could potentially be tested and which set this upscaling apart from empirical formulations 1) the degree of temperature sensitivity and dependence of carbon concentration in anaerobicity and 2) different CO2 response to soil moisture if measured in laboratory jars vs. measured in the field.</p> <p> </p>

Microbial carbon processing along a river discontinuum

2016 ◽  
Vol 35 (4) ◽  
pp. 1133-1147 ◽  
Author(s):  
L. Proia ◽  
D. von Schiller ◽  
C. Gutierrez ◽  
J. P. Casas-Ruiz ◽  
L. Gómez-Gener ◽  
...  
Keyword(s):  
Microbial Carbon ◽  
Carbon Processing

Variations with slope in stem and leaf traits of Melica przewalskyi in alpine grassland

2014 ◽  
Vol 38 (12) ◽  
pp. 1307-1314
Author(s):  
DANG Jing-Jing ◽  
◽  
ZHAO Cheng-Zhang ◽  
LI Yu ◽  
HOU Zhao-Jiang ◽  
...  
Keyword(s):  
Leaf Traits ◽  
Alpine Grassland

scholarly journals Microbial carbon and nitrogen cycling responses to drought and temperature in differently managed mountain grasslands

2019 ◽  
Vol 135 ◽  
pp. 144-153 ◽  
Author(s):  
Lucia Fuchslueger ◽  
Birgit Wild ◽  
Maria Mooshammer ◽  
Mounir Takriti ◽  
Sandra Kienzl ◽  
...  
Keyword(s):  
Nitrogen Cycling ◽  
Carbon And Nitrogen ◽  
Carbon And Nitrogen Cycling ◽  
Mountain Grasslands ◽  
Microbial Carbon

Legacy effect of warming on the heterotrophic respiration of alpine grassland on the Qinghai-Tibet Plateau

2021 ◽  
Vol 166 ◽  
pp. 104093
Author(s):  
Fei Peng ◽  
Wenjuan Zhang ◽  
Chimin Lai ◽  
Chengyang Li ◽  
Quangang You ◽  
...  
Keyword(s):  
Heterotrophic Respiration ◽  
Alpine Grassland ◽  
Tibet Plateau ◽  
Legacy Effect ◽  
Qinghai Tibet Plateau

Disentangling climatic and anthropogenic contributions to nonlinear dynamics of alpine grassland productivity on the Qinghai-Tibetan Plateau

2021 ◽  
Vol 281 ◽  
pp. 111875
Author(s):  
Jianshuang Wu ◽  
Meng Li ◽  
Xianzhou Zhang ◽  
Sebastian Fiedler ◽  
Qingzhu Gao ◽  
...  
Keyword(s):  
Nonlinear Dynamics ◽  
Tibetan Plateau ◽  
Alpine Grassland ◽  
Grassland Productivity ◽  
Anthropogenic Contributions
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