scholarly journals Rhizosphere Enzyme Activities and Microorganisms Drive the Transformation of Organic and Inorganic Carbon in Saline - Alkali Soil Region

Author(s):  
Yunke Qu ◽  
Jie Tang ◽  
Ben Liu ◽  
Hang Lyu ◽  
Yucong Duan ◽  
...  

Abstract Soil inorganic carbon (SIC) is the main existing form of soil carbon pool in arid saline-alkali land, and its quantity distribution affects the pattern of soil carbon accumulation and storage. Previous studies on soil carbon mostly focus on organic carbon (SOC), and pay little attention to SIC. The purpose of this study was to investigate the effect of microorganisms and soil enzymes on the transformation of SOC and SIC in the rhizosphere soil of three maize fields (M1, M2 and M3) and three paddy fields (R1, R2 and R3) under saline-alkali stress, which is a new research topic of soil carbon cycle in saline-alkali soil region. The results showed that the root - soil - microorganism interaction was changed by saline-alkali stress. The results of RDA analysis showed that Proteobacteria, Gemmatimonadetes, Planctomycetes, Nitrospirae, catalase, invertase, amylase and β-glucosidase had significant effects on the transformation of SOC and SIC (P<0.05). SOC and SIC in maize and rice rhizosphere soil were mainly driven by soil enzymes and microorganisms under saline-alkali stress, exchangeable sodium percentage (ESP) and pH were the main factors affecting the conversion process of SOC and SIC.

Author(s):  
Bonnie G. Waring ◽  
Kenneth R. Smith ◽  
Edmund E. Grote ◽  
Armin Howell ◽  
Robin Reibold ◽  
...  

2020 ◽  
Vol 149 (3) ◽  
pp. 337-354
Author(s):  
Qiuxiang Tian ◽  
Dongya Wang ◽  
Dong Li ◽  
Lin Huang ◽  
Min Wang ◽  
...  

2019 ◽  
Vol 124 (4) ◽  
pp. 775-788 ◽  
Author(s):  
R. C. Ingram ◽  
P. A. Moore ◽  
S. Wilkinson ◽  
R. M. Petrone ◽  
J. M. Waddington

2019 ◽  
Vol 25 (9) ◽  
pp. 2900-2914 ◽  
Author(s):  
Nadia I. Maaroufi ◽  
Annika Nordin ◽  
Kristin Palmqvist ◽  
Niles J. Hasselquist ◽  
Benjamin Forsmark ◽  
...  

2019 ◽  
Vol 83 (2) ◽  
pp. 458-465 ◽  
Author(s):  
Shikha Singh ◽  
Sheng Yan ◽  
John Sorochan ◽  
John Stier ◽  
Melanie A. Mayes ◽  
...  

2015 ◽  
Vol 91 ◽  
pp. 279-290 ◽  
Author(s):  
C.M. Kallenbach ◽  
A.S. Grandy ◽  
S.D. Frey ◽  
A.F. Diefendorf

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