Microbial Inoculants Modify the Functions of Resident Soil Microbes to Expedite the Field Restoration of the Abandoned Mine DOI Open Access
Chong Li,

Yuxuan Shi,

Zhaohui Jia

et al.

Land Degradation and Development, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 27, 2024

ABSTRACT Global‐scale mining activities have had significant deleterious impacts on local ecosystems and the overall environment, which will necessitate robust restoration efforts. A practical approach includes combining microbial inoculants with technology of external soil spray seeding. This holds potential for sustainable abandoned mine site by enhancing plant growth through modulation nutrients communities. Nonetheless, detailed effects specific aspects community functions their complex interactions remain underexplored, particularly in context To bridge this gap, we performed a four‐year field study at an carbonate location, using metagenomic sequencing to evaluate influence functionality. Our research revealed that introducing greatly enhanced essential parameters notably increased biomass. Additionally, these altered functional gene makeup community, significantly boosting relative abundance processes such as nitrogen fixation, nitrification, denitrification, assimilatory nitrate reduction (ANRA), dissimilatory (DNRA), organic phosphorus mineralization. Conversely, there was decrease carbon degradation, regulation, transport processes. We observed strong correlations between cycles Crucially, affect biomass initially altering properties subsequently coordinating cycles. These findings provide valuable insights into role offer theoretical foundation broader application.

Language: Английский

Soil degradation regulates the effects of litter decomposition on soil microbial nutrient limitation: Evidence from soil enzymatic activity and stoichiometry DOI Creative Commons
Jianan Li, Ximei Niu, Ping Wang

et al.

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 13

Published: Jan. 6, 2023

Soil microorganisms could obtain energy and nutrients during litter decomposition with the help of soil extracellular enzymes. The types were among most critical factors that affect enzyme activities. However, how modulate activity grassland gradation is unclear. Here, we conducted a 240-day experiment two different on stoichiometry in degraded grasslands. We found C-acquiring C/N higher Chloris virgata than Leymus chinensis at lightly level C. was 16.96% L. chinensis. P-acquiring had same trend moderately highly levels it 20.71% 30.89% chinensis, respectively. change only showed level, suggesting affected microbial C limitation grassland. Almost all activities stoichiometry, except N/P, decreased increasing. All vector angles less 45° limited by N rather P process. Enzyme analysis revealed communities co-limited decomposition. Moreover, based Random Forest (explaining more 80%), total nitrogen, carbon, phosphorus, dissolved organic C, pH EC important affecting degradation levels. Our results emphasized influences activity. study enhanced our understanding resource requirements for to resources helped us provide new ideas improving ecosystems.

Language: Английский

Citations

20
Overgrazing on unmanaged grassland interfered with the restoration of adjacent grazing-banned grassland by affecting soil properties and microbial community DOI Creative Commons

Mengchao Fang,

Guang Lu, Shuping Zhang

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 14

Published: Jan. 4, 2024

A "grazing ban" policy has been implemented in some pastoral areas China to fence degraded grasslands for restoration. However, fencing increased grazing pressures unmanaged grasslands. Based on the mechanism of negative edge effect, we investigated whether overgrazing grassland interfered with restoration adjacent grazing-banned by affecting soil properties and microbial community using a sample Hulun Buir Inner Mongolia, order optimize policy. Plant were sampled 30 m away from (UM) (adjacent UM) 30-60 (not (F-30 F-60 m). The species richness diversity plant communities ASV number fungal significantly decreased F-30 UM, Simpson index bacterial compared m. abundance fungi involved organic matter decomposition stress-resistant bacteria increased, while litter UM simplification water total carbon contents can explain variations both results PLS-PM show that changes function guilds may affect those changing contents. These indicate community. should be adjusted periodically avoid effects.

Language: Английский

Citations

5
Light grazing reduces the abundance of carbon cycling functional genes by decreasing oligotrophs microbes in desert steppe DOI
Tianqi Zhao, Jianying Guo,

Rongzhen Suo

et al.

Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 199, P. 105429 - 105429

Published: May 5, 2024

Language: Английский

Citations

5
Effects of Detritus Treatments on Soil Microbial Community Composition, Structure and Nutrient Limitation in a Subtropical Karst Ecosystem DOI
P Liu,

Suya Ding,

Ning Liu

et al.

Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: 24(2), P. 3265 - 3281

Published: April 16, 2024

Language: Английский

Citations

2
Impact of grassland degradation on soil multifunctionality: Linking to protozoan network complexity and stability DOI
Yang Hu,

Haolin Zhang,

Xinya Sun

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 929, P. 172724 - 172724

Published: April 23, 2024

Language: Английский

Citations

2
Differential impacts of degradation on grassland ecosystems in the Tibetan Plateau and the Northern agro-pastoral ecotone: A meta-analysis DOI
Yuhan Liu, Jingyi Dong, Siyu Ren

et al.

Plant and Soil, Journal Year: 2023, Volume and Issue: 496(1-2), P. 677 - 696

Published: Nov. 23, 2023

Language: Английский

Citations

6
Effects of alpine meadows with different degradation gradients on the stability of the soil micro-foodweb in the Tibetan Plateau DOI Creative Commons

Lili Nian,

Xiaoning Zhang, Liangliang Li

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 158, P. 111390 - 111390

Published: Dec. 15, 2023

Resource-transfer connections among bacteria, fungi, and microbivorous nematodes play an integral role in the decomposition pathways of soil micro-foodweb. Exploring response to grassland degradation is crucial for predicting direction trajectory degradation. However, knowledge about bacteria-fungi-nematode interactions ecosystem function nutrient cycling must be highlighted properly, especially Qinghai-Tibet Plateau. Therefore, this study focuses on four alpine meadows at different degenerate gradients (non-degraded grassland, slightly degraded moderately severely grassland) The investigation uses high-throughput sequencing correlation network analysis. results demonstrate significant variations composition nematode genera, bacterial fungal phyla, across stages. Moreover, diversity nematodes, bacteria fungi declined as worsened. Principal component analysis (PCA) revealed that with varying significantly influenced community structure nematodes. Mantel indicated water content (P < 0.05), total phosphorus nitrogen 0.05) were primary properties affecting community. Similarly, available potassium microbial biomass carbon main factors influencing In contrast, between individual characteristics did not reach a level, suggesting blend physical chemical regulates As intensified, number links interaction increased. Particularly, networks expanded, key species within each varied stages Concurrently, micro-foodweb shifted. ND treatment, jointly dominated channels micro-food web, while LD MD treatments mainly fungi. On other hand, SD treatment was by channels. This research adds our theoretical understanding meadow micro-foodwebs sustainable use grasslands

Language: Английский

Citations

6
Effect of straw incorporation on controlling runoff and soil erosion in cropland with different land degradation degrees DOI
Chengshu Wang, Guanghui Zhang, Shiqi Chen

et al.

Land Degradation and Development, Journal Year: 2023, Volume and Issue: 35(2), P. 717 - 731

Published: Oct. 13, 2023

Abstract Straw incorporation plays a vital role in regulating runoff and soil erosion of cropland. However, the benefits straw to control on croplands under different degradation degrees have not been fully clarified. This study was performed investigate reduce determine its dominant influencing factors. The event were measured from late May September 2022 using 16 plots (9 m length 3.3 width) black region Northeast China. results showed that significantly reduced with intensities. Compared without incorporation, decreased by 48. 8%, 40.0%, 30.9%, 25.5%, 55.2%, 48.8%, 40.8%, 36.5% for no, light, moderate, strong intensities, respectively. roles controlling rainfall intensity. light rainfall, reduction ratio moderate heavy rainfalls 19.5%–61.3% 27.5%–64.4%. benefit limited degraded cropland or storm. Moreover, hydrological properties crop growth characteristics land improved which inevitably affected erosion. Soil bulk density, maximum intensity 30‐min, saturated water content, precipitation, intensity, hydraulic conductivity, total porosity factors affecting croplands. this are helpful prevent recover functions lands semi‐humid region.

Language: Английский

Citations

4
Effective microorganisms input efficiently improves the vegetation and microbial community of degraded alpine grassland DOI Creative Commons
Jinsheng Li,

Juping Wei,

Xinqing Shao

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 14

Published: Jan. 15, 2024

Soil beneficial microorganism deficiency in the degraded grasslands have emerged as major factors negatively impacting soil quality and vegetation productivity. EM (effective microorganisms) has been regarded a good ameliorant improving microbial communities restoring of agricultural systems. However, knowledge was inadequate regarding effects adding on alpine grassland. Four levels addition (0, 150, 200, 250 mL m –2 ) were conducted to investigate properties microorganisms The increased aboveground biomass, organic carbon, total nitrogen, available phosphorus, but decreased electric conductivity. Meanwhile, relative biomasses gram-negative bacteria decreased, while ectomycorrhizal fungi arbuscular mycorrhizal after addition. relationship between environmental changed. restore effect with increase time. These results indicated that could be practice health grassland ecosystem.

Language: Английский

Citations

1
Elevational patterns of warming effects on plant community and topsoil properties: focus on subalpine meadows ecosystem DOI
Aihua Hao, Zhengming Luo,

Xiaojiang Chen

et al.

Journal of Mountain Science, Journal Year: 2024, Volume and Issue: 21(1), P. 146 - 159

Published: Jan. 1, 2024

Language: Английский

Citations

1