Soil labile organic carbon and carbon-cycle enzyme activities under different thinning intensities in Chinese fir plantations

2016 ◽  
Vol 107 ◽  
pp. 162-169 ◽  
Author(s):  
Xinli Chen ◽  
Han Y.H. Chen ◽  
Xin Chen ◽  
Jing Wang ◽  
Bin Chen ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Carbon Cycle ◽  
Enzyme Activities ◽  
Chinese Fir ◽  
Labile Organic Carbon ◽  
Cycle Enzyme ◽  
Soil Labile Organic Carbon

Effects of different rice-crab production modes on soil labile organic carbon and enzyme activities

2012 ◽  
Vol 32 (15) ◽  
pp. 4753-4761 ◽  
Author(s):  
安辉 AN Hui ◽  
刘鸣达 LIU Mingda ◽  
王耀晶 WANG Yaojing ◽  
闫颖 YAN Ying
Keyword(s):  
Organic Carbon ◽  
Enzyme Activities ◽  
Labile Organic Carbon ◽  
Soil Labile Organic Carbon

scholarly journals The interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chen-yang Xu ◽  
Can Du ◽  
Jin-shi Jian ◽  
Lin Hou ◽  
Zhi-kang Wang ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Carbon Cycle ◽  
Forest Soil ◽  
Relative Abundance ◽  
Forest Soils ◽  
Enzyme Activities ◽  
Fungal Communities ◽  
Seasonal Fluctuations ◽  
Labile Organic Carbon ◽  
Picea Asperata

AbstractSoil labile organic carbon (LOC) responds rapidly to environmental changes and plays an important role in carbon cycle. In this study, the seasonal fluctuations in LOC, the activities of carbon-cycle related enzymes, and the bacterial and fungal communities were analyzed for soils collected from two forests, namely Betula albosinensis (Ba) and Picea asperata Mast. (Pa), in the Qinling Mountains of China. Results revealed that the seasonal average contents of microbial biomass carbon (MBC), easily oxidized organic carbon (EOC), and dissolved organic carbon (DOC) of Pa forest soil were 13.5%, 30.0% and 15.7% less than those in Ba soil. The seasonal average enzyme activities of β-1,4-glucosidase (βG), and β-1,4-xylosidase (βX) of Ba forest soils were 30.0% and 32.3% higher than those of Pa soil while the enzyme activity of cellobiohydrolase (CBH) was 19.7% lower. Furthermore, the relative abundance of Acidobacteria was significantly higher in summer than in winter, whereas the relative abundance of Bacteroidetes was higher in winter. Regarding the fungal communities, the relative abundance of Basidiomycota was lowest in winter, whereas Ascomycota predominated in the same season. In addition, the soil LOC was significantly positively correlated with the CBH, βG and βX activities. Changes in LOC were significantly correlated with Acidobacteria, Bacteroidetes and Basidiomycota. We conclude that the seasonal fluctuations in forest soil LOC fractions relied on carbon cycle-associated enzymatic activities and microorganisms, which in turn were affected by climatic conditions.

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