scholarly journals Effects of long-term human disturbances on soil microbial diversity and community structure in a karst grassland ecosystem of northwestern Guangxi, China

2021 ◽  
Vol 45 (1) ◽  
pp. 74-84
Author(s):  
Guang-Ting PEI ◽  
Jian-Fei SUN ◽  
Tong-Xin HE ◽  
Bao-Qing HU ◽  
Keyword(s):  
Community Structure ◽  
Microbial Diversity ◽  
Grassland Ecosystem ◽  
Soil Microbial Diversity ◽  
Human Disturbances ◽  
Soil Microbial

Effects of Fumigation with Allyl Isothiocyanate on Soil Microbial Diversity and Community Structure of Tomato

2020 ◽  
Vol 68 (5) ◽  
pp. 1226-1236 ◽  
Author(s):  
Jiahong Zhu ◽  
Zongjie Ren ◽  
Bin Huang ◽  
Aocheng Cao ◽  
Qiuxia Wang ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Diversity ◽  
Allyl Isothiocyanate ◽  
Soil Microbial Diversity ◽  
Soil Microbial

Soil microbial diversity and community structure across a climatic gradient in western Canada

1998 ◽  
Vol 7 (8) ◽  
pp. 1081-1092 ◽  
Author(s):  
William J. Staddon ◽  
Jack T. Trevors ◽  
Luc C. Duchesne ◽  
Carol a. Colombo
Keyword(s):  
Community Structure ◽  
Microbial Diversity ◽  
Western Canada ◽  
Climatic Gradient ◽  
Soil Microbial Diversity ◽  
Soil Microbial

Deciphering the associations between soil microbial diversity and ecosystem multifunctionality driven by long‐term fertilization management

2018 ◽  
Vol 32 (4) ◽  
pp. 1103-1116 ◽  
Author(s):  
Gongwen Luo ◽  
Christopher Rensing ◽  
Huan Chen ◽  
Manqiang Liu ◽  
Min Wang ◽  
...  
Keyword(s):  
Microbial Diversity ◽  
Soil Microbial Diversity ◽  
Soil Microbial ◽  
Ecosystem Multifunctionality

scholarly journals Effect of Silene vulgaris and Heavy Metal Pollution on Soil Microbial Diversity in Long-Term Contaminated Soil

2017 ◽  
Vol 229 (1) ◽  
Author(s):  
Magdalena Pacwa-Płociniczak ◽  
Tomasz Płociniczak ◽  
Dan Yu ◽  
Jukka M. Kurola ◽  
Aki Sinkkonen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Microbial Diversity ◽  
Contaminated Soil ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Silene Vulgaris ◽  
Soil Microbial Diversity ◽  
Soil Microbial

scholarly journals Coupling Between the Responses of Plants, Soil, and Microorganisms Following Grazing Exclusion in an Overgrazed Grassland

2021 ◽  
Vol 12 ◽  
Author(s):  
Zhen Wang ◽  
Xiliang Li ◽  
Baoming Ji ◽  
Paul C. Struik ◽  
Ke Jin ◽  
...  
Keyword(s):  
Community Structure ◽  
Ecosystem Functioning ◽  
Soil Microbial Communities ◽  
Alpha Diversity ◽  
Ammonia Oxidizers ◽  
Grassland Ecosystem ◽  
Grazing Exclusion ◽  
Soil Microbial

Grazing exclusion is an effective management practice to restore grassland ecosystem functioning. However, little is known about the role of soil microbial communities in regulating grassland ecosystem functioning during long-term ecosystem restorations. We evaluated the recovery of a degraded semiarid grassland ecosystem in northern China by investigating plant and soil characteristics and the role of soil microbial communities in ecosystem functioning after 22 years of grazing exclusion. Grazing exclusion significantly increased the alpha diversity and changed the community structure of bacteria, but did not significantly affect the alpha diversity or community structure of fungi. The higher abundance of copiotrophic Proteobacteria and Bacteroidetes with grazing exclusion was due to the higher carbon and nutrient concentrations in the soil, whereas the high abundance of Acidobacteria in overgrazed soils was likely an adaptation to the poor environmental conditions. Bacteria of the Sphingomonadaceae family were associated with C cycling under grazing exclusion. Bacteria of the Nitrospiraceae family, and especially of the Nitrospira genus, played an important role in changes to the N cycle under long-term exclusion of grazing. Quantitative PCR further revealed that grazing exclusion significantly increased the abundance of nitrogen fixing bacteria (nifH), ammonia oxidizers (AOA and AOB), and denitrifying bacteria (nirK and nosZ1). Denitrifying enzyme activity (DEA) was positively correlated with abundance of denitrifying bacteria. The increase in DEA under grazing exclusion suggests that the dependence of DEA on the availability of NO3– produced is due to the combined activity of ammonia oxidizers and denitrifiers. Our findings indicate that decades-long grazing exclusion can trigger changes in the soil bacterial diversity and composition, thus modulating the restoration of grassland ecosystem functions, carbon sequestration and soil fertility.

scholarly journals Distinct soil microbial diversity under long-term organic and conventional farming

2014 ◽  
Vol 9 (5) ◽  
pp. 1177-1194 ◽  
Author(s):  
Martin Hartmann ◽  
Beat Frey ◽  
Jochen Mayer ◽  
Paul Mäder ◽  
Franco Widmer
Keyword(s):  
Microbial Diversity ◽  
Conventional Farming ◽  
Soil Microbial Diversity ◽  
Soil Microbial ◽  
Organic And Conventional Farming
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