Effect of reclamation on diversity of soil bacterial community in mining subsidence area

2014 ◽  
pp. 263-272
Keyword(s):  
Bacterial Community ◽  
Soil Bacterial Community ◽  
Mining Subsidence ◽  
Subsidence Area ◽  
Soil Bacterial

scholarly journals Mining Subsidence-Induced Microtopographic Effects Alter the Interaction of Soil Bacteria in the Sandy Pasture, China

2021 ◽  
Vol 9 ◽  
Author(s):  
Qi Zhang ◽  
Jing Ma ◽  
Yongjun Yang ◽  
Zhanbin Luo ◽  
Yifei Wang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Living Environment ◽  
Soil Bacterial Community ◽  
Mining Subsidence ◽  
Community Diversity ◽  
Vegetation Coverage ◽  
Vegetation Degradation ◽  
Subsidence Area ◽  
Soil Bacterial ◽  
The Relationship

The microtopographic changes induced by coal mining subsidence caused a series of environmental problems such as soil erosion, and vegetation degradation in the mining area. However, the corresponding influence on surface vegetation and soil characteristic in different parts of the slope was completely different. To understand soil and vegetation degradation in coal mines and their future ecological restoration, it was crucial to investigate the origin. The relationship between soil microbial community diversity, structure, and taxa in the slope of subsidence area of different topographic locations in Daliuta coal mine, Shannxi, China, was determined by high throughput sequencing and molecular ecological network analysis. The relationship between the bacterial communities, environmental factors, and soil physicochemical properties was also investigated. We found a new topographic trait formed by surface subsidence to deteriorate the living environment of vegetation and the bacterial community. The vegetation coverage, soil water content, organic matter, and urease and dehydrogenase activities decreased significantly (p < 0.05). Although soil bacterial community diversity in the subsidence area did not differ significantly, the dominant taxa in different topographic locations varied. The molecular ecological networks representing bacterial community structure and function were also totally different. The networks in the middle and the top of the slope tend to be more complicated, and the interaction between species is obviously stronger than that of the bottom. However, the network in the bottom slope approached simplicity, and weak interaction, predominantly cooperative, was observed within and between modules. Meanwhile, the double stress of aridity and the lack of carbon source induced by subsidence also enhanced the capacity of the soil bacterial community to metabolize complex carbon sources at the bottom of the slope.

scholarly journals Effects of novel bioorganic fertilizer application on soil enzymes and bacterial community in multi-site rice paddies in China

AMB Express ◽  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zuren Li ◽  
Jincai Han ◽  
Haodong Bai ◽  
Di Peng ◽  
Lifeng Wang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Field Experiments ◽  
Chemical Properties ◽  
Soil Bacterial Community ◽  
General Function ◽  
Rice Paddies ◽  
Phylogenetic Groups ◽  
Total N ◽  
Bioorganic Fertilizer ◽  
Soil Bacterial

AbstractApplication of a novel bioorganic fertilizer (BIO) has been effectively used to inhibit weeds in rice paddies. To identify changes in soil bacterial community and enzymes in response to BIO treatments, field experiments were carried out in five major rice-growing areas in China. The dominant phylogenetic groups recorded included Proteobacteria, Actinobacteria, Bacteroidetes, Firmicutes and Acidobacteria. Anaeromyxobacter, Bacteroides, Bifidobacterium, Escherichia- Shigella, Geobacter and Haliangium were significantly different between BIO-treatment and untreated control and aided in general function (R), amino acid transport, metabolism (E) and transcription (K) clusters. The soil chemical properties and enzyme activities were less affected by BIO at these study sites. RDA analysis showed that soil bacterial community had a significant positive correlations among northern latitude, eastern longitude, exchangeable K, total K, total P, soil pH, and total N, except for organic matter, hydrolytic N and extractable P. Overall, our work showed that application of BIO does not alter the main community structure and functional diversity of soil bacteria in rice paddies and should be encouraged for use as a sustainable weed management strategy.

scholarly journals Soil bacterial community in potato tuberosphere following repeated applications of a common scab suppressive antagonist

2021 ◽  
Vol 167 ◽  
pp. 104096
Author(s):  
Lea H. Hiltunen ◽  
Oili Tarvainen ◽  
Jani Kelloniemi ◽  
Jaakko Tanskanen ◽  
Jouni Karhu ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Common Scab ◽  
Soil Bacterial Community ◽  
Repeated Applications ◽  
Soil Bacterial

scholarly journals Effects of Simulated Nitrogen Deposition on the Bacterial Community of Urban Green Spaces

2021 ◽  
Vol 11 (3) ◽  
pp. 918
Author(s):  
Lingzi Mo ◽  
Augusto Zanella ◽  
Xiaohua Chen ◽  
Bin Peng ◽  
Jiahui Lin ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Bacterial Diversity ◽  
Negative Impact ◽  
Bacterial Community Composition ◽  
N Deposition ◽  
Soil Bacterial Community ◽  
Rrna Gene ◽  
Soil Dna ◽  
Urban Green ◽  
Soil Bacterial

Continuing nitrogen (N) deposition has a wide-ranging impact on terrestrial ecosystems. To test the hypothesis that, under N deposition, bacterial communities could suffer a negative impact, and in a relatively short timeframe, an experiment was carried out for a year in an urban area featuring a cover of Bermuda grass (Cynodon dactylon) and simulating environmental N deposition. NH4NO3 was added as external N source, with four dosages (N0 = 0 kg N ha−2 y−1, N1 = 50 kg N ha−2 y−1, N2 = 100 kg N ha−2 y−1, N3 = 150 kg N ha−2 y−1). We analyzed the bacterial community composition after soil DNA extraction through the pyrosequencing of the 16S rRNA gene amplicons. N deposition resulted in soil bacterial community changes at a clear dosage-dependent rate. Soil bacterial diversity and evenness showed a clear trend of time-dependent decline under repeated N application. Ammonium nitrogen enrichment, either directly or in relation to pH decrease, resulted in the main environmental factor related to the shift of taxa proportions within the urban green space soil bacterial community and qualified as a putative important driver of bacterial diversity abatement. Such an impact on soil life induced by N deposition may pose a serious threat to urban soil ecosystem stability and surrounding areas.

scholarly journals Early colonizers of unoccupied habitats represent a minority of the soil bacterial community

2015 ◽  
Vol 91 (5) ◽  
Author(s):  
Alexandra B. Wolf ◽  
Max-Bernhard Rudnick ◽  
Wietse de Boer ◽  
George A. Kowalchuk
Keyword(s):  
Bacterial Community ◽  
Soil Bacterial Community ◽  
Soil Bacterial
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