Effects of grassland degradation on soil ecological stoichiometry and soil microbial community on the South of the Greater Khingan Mountains DOI Creative Commons
Yuyu Li, Lixing Zhao, Mian Gul Hilal

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Nov. 18, 2024

Grassland which covers 40% of terrestrial land is an important ecosystem having a multitude functions, has suffered various degrees degradation with the interaction between global climate change and unreasonable human utilization (e.g., grazing reclamation). Improved understanding soil microbial community diversity during meadow steppe crucial for predicting mechanisms restoration strategies. Here, we used Illumina sequencing technology to investigate patterns structure driving factors its across different [i.e., non-degraded grasslands (NDG), lightly degraded (LDG), moderately (MDG), severely (SDG)] south Greater Khingan Mountains. Our results showed significant variation in properties, enzyme activity, metal elements meadows. Soil available phosphorus (AP), urease (UE), cellulase (CL) soils increased intensity grassland degradation. significantly decreased bacterial fungal richness. In addition, relative abundance Firmicutes (from 1.65% 5.38%) Myxococcota 2.13% 3.13%). Degradation considerably Ascomycota 66.54% 75.05%), but Basidiomycota 18.33% 9.92%). The nitrogen fixation cellulolysis due For functional guilds, pathotrophs while saprotrophs increasing severity Total (TP), AP, potassium (AK), manganese (Mn), lead (Pb), UE, sucrase (SC), alcalase protease (ALPT) were main drivers composition, TP, AK, Pb, SC composition grassland. findings demonstrated that severe enormous effect on communities physicochemical dynamics. These improve our theoretical interactions populations environmental variables

Language: Английский

Phytostabilization potential and microbial response to the reclamation of native Cynodon dactylon in spoil heaps from a multiple-metal mining site in Southwest China DOI
Bowen Wang,

Yanying Guo,

Xuejiao Li

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 378, P. 124758 - 124758

Published: March 2, 2025

Language: Английский

Citations

0
Biodiversity in mountain soils above the treeline DOI Creative Commons
Nadine Praeg, Michael Steinwandter, Davnah Urbach

et al.

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2025, Volume and Issue: unknown

Published: May 14, 2025

ABSTRACT Biological diversity in mountain ecosystems has been increasingly studied over the last decade. This is also case for soils, but no study to date provided an overall synthesis of current state knowledge. Here we fill this gap with a first global analysis published research on cryptogams, microorganisms, and fauna soils above treeline, structured Based corpus almost 1400 publications expertise 37 soil scientists worldwide, summarise what known about distribution patterns each these organismal groups, specifically along elevation, provide overview available knowledge drivers explaining their changes. In particular, document elevation‐dependent decrease faunal while cryptogams there initial increase followed by towards nival belt. Thus, our data confirm key role that elevation plays shaping biodiversity organisms soils. The response prokaryote turn, was more diverse, whereas fungal appeared be substantially influenced plants. As far as available, describe characteristics, adaptations, functions species, despite lack ecological information uncultivated majority prokaryotes, fungi, protists, illustrate remarkable unique life forms histories encountered alpine By applying rule‐ well pattern‐based literature‐mining approaches semi‐quantitative analyses, identified hotspots European Alps Central Asia revealed significant gaps taxonomic coverage, particularly among biocrusts, fauna. We further report thematic priorities treeline identify unanswered questions. Building upon outcomes synthesis, conclude set opportunities worldwide. Soils fulfil critical make essential contributions land. Accordingly, seizing closing appears crucial enable science‐based decision making regions formulating laws guidelines support conservation targets.

Language: Английский

Citations

0
Responses of soil fungal community composition and function to wetland degradation in the Songnen Plain, northeastern China DOI Creative Commons

Zhizhi Yan,

Shuhan Yang, Lei Chen

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Sept. 9, 2024

Wetlands are ecosystems that have a significant impact on ecological services and essential for the environment. With impacts of rapid population growth, wetland reclamation, urbanization, land use change, wetlands undergo severe degradation or loss. However, response soil fungal communities to remains unknown. It is crucial comprehend how diversity dynamics fungi respond varying levels progression in Songnen Plain.

Language: Английский

Citations

2
Changes in Soil Bacterial and Fungal Community Composition and Functional Groups During the Artificial Restoration of Degraded Grassland of “Black‐Soil Mountain” DOI Creative Commons
Lele Xie,

Yushou Ma,

Yanlong Wang

et al.

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

ABSTRACT About 35% of grassland in Sanjiangyuan area China has degenerated into black‐soil mountain. Artificial is considered to be an effective measure alleviate the severely degraded alpine region three rivers and been widely used. However, pattern, potential function, changes carbon nitrogen contents soil microorganisms Heimushan by planting artificial are still unclear. In this study, mixed‐sown (AG) was focus our whereas mountain (BG) natural (NG) served as controls. Illumina 16S ITS gene sequence analyses were used analyze community structure bacteria fungi. The functional groups NG, AG, BG predicted using FAPROTAX FUNGuild databases. addition, levels carbon, nitrogen, enzyme activities evaluated. results indicated a significant increase aboveground biomass due grassland. Moreover, total (TC), (TN), ammonium (), microbial (MBC), (MBN), leucine aminopeptidase (LAP) increased soil. Planting grasslands changed composition bacterial fungal communities. Among these, more sensitive grasslands. relative abundance involved cycling significantly, suggesting that may play role regulating nutrient during planting. Soil TC, TN, LAP, affected related nitrogen. β‐1,4‐glucosidase factors, respectively, These indicate can effectively enhance productivity regulate communities physical chemical properties.

Language: Английский

Citations

2
Soil fungal networks exhibit sparser interactions than bacterial networks in diseased banana plantations DOI
Peng Chen,

Jinku Li,

Dandan Wei

et al.

Applied and Environmental Microbiology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 8, 2024

Soil microorganisms play a crucial role in suppressing soil-borne diseases. Although the composition of microbial communities healthy versus diseased soils is somewhat understood, interplay between interactions and disease incidence remains unclear. This study used 16S rRNA fungal internal transcribed spacer (ITS) sequencing to investigate bacterial community three soil types: forest (Z), from banana plantations (H), (D). Principal coordinate analysis revealed significant differences among structures types. Compared with those soil, diversities significantly decreased soil. Key microorganisms, including bacteria Chloroflexi Pseudonocardia fungi Mortierellomycota Moesziomyces, were increased plantations. Redundancy that total nitrogen available phosphorus primary drivers structure. The neutral model posited assembly predominantly governed by stochastic processes, whereas primarily driven deterministic processes. Furthermore, co-occurrence network proportion positive edges was 5.92 times lower than plantations, its structure sparse simple. In conclusion, reduced within linked epidemiology Fusarium wilt. These findings underscore critical modulating pathogens.

Language: Английский

Citations

0
Effects of grassland degradation on soil ecological stoichiometry and soil microbial community on the South of the Greater Khingan Mountains DOI Creative Commons
Yuyu Li, Lixing Zhao, Mian Gul Hilal

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Nov. 18, 2024

Grassland which covers 40% of terrestrial land is an important ecosystem having a multitude functions, has suffered various degrees degradation with the interaction between global climate change and unreasonable human utilization (e.g., grazing reclamation). Improved understanding soil microbial community diversity during meadow steppe crucial for predicting mechanisms restoration strategies. Here, we used Illumina sequencing technology to investigate patterns structure driving factors its across different [i.e., non-degraded grasslands (NDG), lightly degraded (LDG), moderately (MDG), severely (SDG)] south Greater Khingan Mountains. Our results showed significant variation in properties, enzyme activity, metal elements meadows. Soil available phosphorus (AP), urease (UE), cellulase (CL) soils increased intensity grassland degradation. significantly decreased bacterial fungal richness. In addition, relative abundance Firmicutes (from 1.65% 5.38%) Myxococcota 2.13% 3.13%). Degradation considerably Ascomycota 66.54% 75.05%), but Basidiomycota 18.33% 9.92%). The nitrogen fixation cellulolysis due For functional guilds, pathotrophs while saprotrophs increasing severity Total (TP), AP, potassium (AK), manganese (Mn), lead (Pb), UE, sucrase (SC), alcalase protease (ALPT) were main drivers composition, TP, AK, Pb, SC composition grassland. findings demonstrated that severe enormous effect on communities physicochemical dynamics. These improve our theoretical interactions populations environmental variables

Language: Английский

Citations

0