Results 261 to 270 of about 177,892 (306)

Mycorrhizal mycelial respiration: A substantial component of soil respired CO2

Soil Biology and Biochemistry, 2021
Abstract Mycorrhizal fungi constitute a considerable sink for plant photo-assimilates, yet poor knowledge about mycorrhizal mycelial respiration (RMyc) hinders the quantification of its role in belowground carbon cycling. We synthesized available field data of RMyc, and found that RMyc contributed 15% of soil respiration and 38% of autotrophic ...
Mengguang Han, Jiguang Feng, Ying Chen, Lijuan Sun, Liangchen Fu, Biao Zhu   +5 more
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Adapted Fick's Law Applied to Soil Respiration

Water Resources Research, 1996
In soil respiration studies the diffusive gas fluxes are often calculated using Fick's law. However, results obtained with Fick's law deviate from those obtained with the theoretically sound Stefan‐Maxwell equations. In the present study a numerical model based on an adapted form of Fick's law is applied to soil respiration.
Freijer, J.I., Leffelaar, P.A.
openaire   +3 more sources

Soil respiration under climate warming: differential response of heterotrophic and autotrophic respiration

Global Change Biology, 2014
AbstractDespite decades of research, how climate warming alters the global flux of soil respiration is still poorly characterized. Here, we use meta‐analysis to synthesize 202 soil respiration datasets from 50 ecosystem warming experiments across multiple terrestrial ecosystems.
Wang, Xin, Liu, Lingli, Piao, Shilong, Janssens, Ivan, Tang, Jianwu, Liu, Weixing, Chi, Yonggang, Wang, Jing, Xu, Shan   +8 more
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Soil Respiration and Litter Decomposition

2003
Emissions of CO2 from the organic and mineral soil horizons into the atmosphere are considered a good representation of soil respiration (R soil) when the diffusion-driven losses to the atmosphere are at equilibrium with the biological rates of CO2 production (Hanson et al. 2000). R soil is the net effect of the biological activity of autotrophic roots
Paul J. Hanson, Elizabeth G. O’Neill, M. Lala S. Chambers, Jeffery S. Riggs, J. Devereux Joslin, Mark H. Wolfe   +5 more
openaire   +1 more source

Effects of triclosan on soil microbial respiration

Environmental Toxicology and Chemistry, 2011
Abstract The antimicrobial substance triclosan has widespread use in personal care products and can enter the terrestrial environment if sewage sludge is applied to soil. The inhibitory effects of triclosan on basal and substrate-induced respiration (SIR) of three different soils were investigated. Soils were dosed and later redosed with
Emma, Butler, Michael J, Whelan, Karl, Ritz, Ruben, Sakrabani, Roger, van Egmond   +4 more
openaire   +2 more sources

Soil Respiration as an Index of Soil Aeration

Soil Science Society of America Journal, 1990
Abstract The accurate determination of available soil O 2 is problematic due to the dynamic interaction of physical and biological soil properties. This study was conducted to evaluate combined effects of soil bulk density, water content, and organic and inorganic amendments
J. W. Neilson, I. L. Pepper
openaire   +1 more source

Soil Respiration of Tropical Vegetation types

Ecology, 1967
Soil respiration rates, measured during the dry season of 1966 in Costa Rica by absorption of CO2 through KOH followed by titration with HCI, were lowest in the savanna and the decidous forest (300—400 mg CO2/m2/hr); they were between 1,000 and 2,000 mg CO:2/m2/hr in the gallery forest and the wet forest; and were highest in the secondary growth ...
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Soil Respiration in Larch Forests

2009
Soil respiration is an important component process of the carbon cycle (Schlesinger and Andrews 2000). It is derived from both soil microbial respiration and plant root respiration (Luo and Zhou 2006). In boreal forests, substrate supply, soil temperature, and soil moisture control the soil respiration (Luo and Zhou 2006).
T. Morishita, O. V. Masyagina, T. Koike, Y. Matsuura   +3 more
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The influence of metam sodium on soil respiration

Journal of Environmental Science and Health, Part B, 2000
A laboratory experiment was performed in order to evaluate the extent to which metam sodium (MS) applied at two different recommended rates and its degradation product, methyl isothiocyanate (MITC), affect soil respiration. Results suggest that MS degradation to MITC was complete within 4 hours and that MITC decomposed quickly in a few days, except in ...
Riffaldi R., Filippelli M., Levi Minzi R., SAVIOZZI, ALESSANDRO   +3 more
openaire   +2 more sources

Regional microbial biogeography linked to soil respiration

Science of The Total Environment
The relationships between α-diversity and ecosystem functioning (BEF) have been extensively examined. However, it remains unknown how spatial heterogeneity of microbial community, i.e., microbial β-diversity within a region, shapes ecosystem functioning.
Yufei, Zeng, Xue, Guo, Jiesi, Lei, Yu, Shi, Xu, Liu, Tianjiao, Dai, Qiuting, Zhang, Qun, Gao, Haiyan, Chu, Yongqin, Liu, Jizhong, Zhou, Yunfeng, Yang   +11 more
openaire   +2 more sources