Results 171 to 180 of about 23,575 (220)
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Eurasian Soil Science, 2022
Abstract: There is growing concern about the negative impact of massive fertilizer use on soil health, threatening the environmental quality and sustainability of global agricultural production. Microbial metabolic quotient (qCO2) is an important soil health indicator, used to measure microbial C use efficiency (CUE).
Ashraf, M. N., Waqas, M. A., Rahman, S.
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Abstract: There is growing concern about the negative impact of massive fertilizer use on soil health, threatening the environmental quality and sustainability of global agricultural production. Microbial metabolic quotient (qCO2) is an important soil health indicator, used to measure microbial C use efficiency (CUE).
Ashraf, M. N., Waqas, M. A., Rahman, S.
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Journal of Geophysical Research: Biogeosciences, 2021
AbstractUnderstanding seasonal changes in soil microbial quotient (qMB, i.e., the MBC‐to‐SOC ratio) along altitudinal gradients and their dominant drivers is essential for determining the effects of environmental changes on the soil organic carbon pool.
Rui Cao +7 more
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AbstractUnderstanding seasonal changes in soil microbial quotient (qMB, i.e., the MBC‐to‐SOC ratio) along altitudinal gradients and their dominant drivers is essential for determining the effects of environmental changes on the soil organic carbon pool.
Rui Cao +7 more
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The microbial respiration quotient as indicator for bioremediation processes
Chemosphere, 1994Abstract The respiration quotient (Q R ) calculated from the actual (R A ) and potential respiration rate (R P ) after addition of glucose ( Q R = R A R P ) was compared with the PAH concentration of a contaminated site during bioremediation. A correlation coefficient of 0.997 was obtained.
Kerstin Hund, Birgit Schenk
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Soil Microbial Metabolic Quotient in Inner Mongolian Grasslands: Patterns and Influence Factors
Chinese Geographical Science, 2019Microbial metabolic quotient (MMQ) is the rate of soil microbial respiration per unit of microbial biomass, and represents the capacity of soil microbes to utilize soil organic matter. Understanding the regional variation and determinants of MMQ can help predict the responses of soil respiration rate to global climate change.
Yingqiu Cao +4 more
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Soil Biology and Biochemistry, 2020
Abstract Small changes in soil organic carbon (SOC) may have great influences on the climate-carbon (C) cycling feedback. However, there are large uncertainties in predicting the dynamics of SOC in soil profiles at the global scale, especially on the role of soil microbial biomass in regulating the vertical distribution of SOC.
Tingting Sun +4 more
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Abstract Small changes in soil organic carbon (SOC) may have great influences on the climate-carbon (C) cycling feedback. However, there are large uncertainties in predicting the dynamics of SOC in soil profiles at the global scale, especially on the role of soil microbial biomass in regulating the vertical distribution of SOC.
Tingting Sun +4 more
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Changes in microbial biomass and the metabolic quotient with biochar addition to agricultural soils: A Meta-analysis [PDF]
Agriculture, Ecosystems and Environment, 2017 Abstract Biochar has been increasingly recommended for world agriculture, but the effects on microbial activities in agricultural soils has not yet thoroughly assessed. In this study, using a meta-analysis of experiment data retrieved from literature published up to March 1, 2015, changes were examined in microbial biomass and soil respiration in ...
Lianqing Li +2 more
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Water and Environment Journal, 2004
ABSTRACTThe soil microbial biomass quotient (expressed as a percentage of the total soil organic carbon) and the specific rate of carbon‐dioxide production by soil microbes (respiration quotient) are often used as indicators of stress on soil microbial populations.
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ABSTRACTThe soil microbial biomass quotient (expressed as a percentage of the total soil organic carbon) and the specific rate of carbon‐dioxide production by soil microbes (respiration quotient) are often used as indicators of stress on soil microbial populations.
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Biology and Fertility of Soils, 2007
A combination of molecular and classical techniques was used to study the composition, structure, diversity, and dynamics of an aerobic heterotrophic cultivable bacterial community isolated from five different soil samples treated with the fumigant agent 1,3-dichloropropene (1,3-D) and further subjected to nitrogen–phosphorous–potassium (NPK ...
Mocali, S. +4 more
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A combination of molecular and classical techniques was used to study the composition, structure, diversity, and dynamics of an aerobic heterotrophic cultivable bacterial community isolated from five different soil samples treated with the fumigant agent 1,3-dichloropropene (1,3-D) and further subjected to nitrogen–phosphorous–potassium (NPK ...
Mocali, S. +4 more
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Soil Biology and Biochemistry, 2011
Abstract On the basis of CO2 evolution rate, O2 uptake rate, and 13C isotopic signature of respired CO2, the metabolic response to the addition of 13C labelled n-hexadecane and palmitic acid each with supplementary nitrogen was studied for two topsoils, one under continuous agricultural management and the other under beech forest.
Dilly, O. +5 more
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Abstract On the basis of CO2 evolution rate, O2 uptake rate, and 13C isotopic signature of respired CO2, the metabolic response to the addition of 13C labelled n-hexadecane and palmitic acid each with supplementary nitrogen was studied for two topsoils, one under continuous agricultural management and the other under beech forest.
Dilly, O. +5 more
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Soil Biology and Biochemistry, 2013
The addition of fresh organic matter is known to modify both soil aggregation and soil biotic community composition. We hypothesized that fertilization alters the composition of soil nematode and microbial communities in soil aggregates, and the interaction between nematodes and microbes can stimulate or inhibit microbial activity.
Yuji Jiang, Bo Sun
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The addition of fresh organic matter is known to modify both soil aggregation and soil biotic community composition. We hypothesized that fertilization alters the composition of soil nematode and microbial communities in soil aggregates, and the interaction between nematodes and microbes can stimulate or inhibit microbial activity.
Yuji Jiang, Bo Sun
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