Responses of soil microbial mineralization to the anthropogenic introduced shrub encroachment and water gradients in the desert steppe

2021 ◽  
Vol 41 (4) ◽  
Author(s):  
孙忠超，周玉蓉，赵亚楠，郭天斗，于露，王红梅 SUN Zhongchao
Keyword(s):  
Shrub Encroachment ◽  
Desert Steppe ◽  
Soil Microbial ◽  
Microbial Mineralization ◽  
Water Gradients

Microbial Dynamic Changes under Different Grazing Intensities in Growing Seasons of Desert Steppe

2013 ◽  
Vol 864-867 ◽  
pp. 2635-2638
Author(s):  
Jing He ◽  
Ting Ting Yang ◽  
Tao Shi ◽  
Guo Zheng Yao
Keyword(s):  
Soil Bacteria ◽  
Measured Data ◽  
Desert Steppe ◽  
Dynamic Changes ◽  
Soil Microbial ◽  
Growing Seasons ◽  
Grassland Ecosystems ◽  
Ground Survey ◽  
Grazing Intensities ◽  
Microbial Dynamic

Soil microbial plays a very important role in the grassland ecosystems, but measured data is very lack. In this paper, based on the ground survey data microbial dynamic changes in growing seasons of Desert steppe in 2012 was estimated. The main conclusions are as follows: soil bacteria number began to increase in May, reached to highest value in July and then began to decrease. Actinomycetes population increased first and then decreased. Fungus amount decreased in beginning and then increased. Grazing significantly affect the number of soil microbial, shown as soil microbial of very severe grazing fences are significantly lower than other fences.

scholarly journals Soil fungal networks are more sensitive to grazing exclusion than bacterial networks

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9986
Author(s):  
Lingling Chen ◽  
Jiajia Shi ◽  
Zhihua Bao ◽  
Taogetao Baoyin
Keyword(s):  
Soil Microbial Communities ◽  
Northern China ◽  
Desert Steppe ◽  
Plant Composition ◽  
Negative Effects ◽  
Grazing Exclusion ◽  
Soil Microbial ◽  
Lack Of Information ◽  
Soil Fungal Community ◽  
Management Issues

Soil microbial communities play a crucial role in ecological restoration, but it is unknown how co-occurrence networks within these communities respond to grazing exclusion. This lack of information was addressed by investigating the effects of eight years of grazing exclusion on microbial networks in an area of Stipa glareosa P. Smirn desert steppe in northern China. Here, we show that fungal networks were more sensitive to grazing exclusion than bacterial networks. Eight years of grazing exclusion decreased the soil fungal community stability via changes in plant composition and reductions in soil total organic carbon, in this case triggering negative effects on the S. glareosa desert steppe. The results provide new insights into the response mechanisms of soil microbes to grazing exclusion and offer possible solutions for management issues in the restoration of degraded desert steppe.

Shift in soil microbial communities with shrub encroachment in Inner Mongolia grasslands, China

2017 ◽  
Vol 79 ◽  
pp. 40-47 ◽  
Author(s):  
He Li ◽  
Jianhua Zhang ◽  
Huifeng Hu ◽  
Leiyi Chen ◽  
Yankun Zhu ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Inner Mongolia ◽  
Soil Microbial Communities ◽  
Shrub Encroachment ◽  
Soil Microbial
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