Effects of Grazing Intensity on Microbial Diversity at Different Soil Depths in Desert Steppe Soils

Agronomy, Journal Year: 2025, Volume and Issue: 15(1), P. 124 - 124

Published: Jan. 6, 2025

This study examines the influence of grazing intensity on soil microbial communities in a desert steppe ecosystem. Soil samples were collected from three depths (0–10 cm, 10–20 and 20–30 cm) under varying intensities: control (CK), light (LG), moderate (MG), heavy (HG). Key physicochemical properties plant characteristics analyzed alongside diversity community composition, which assessed by identifying amplicon sequence variants conducting linear discriminant analysis effect size. The results showed that significantly impacted moisture, organic carbon, total nitrogen, phosphorus levels, with notable decrease cover grazing. CK LG treatments supported higher diversity, especially surface layers, while was associated shift composition toward stress-tolerant taxa like Acidobacteriota Blastocatella. Non-metric multidimensional scaling revealed differences structure between depths, effects diminishing depth. These findings highlight critical role sustainable practices maintaining health implications for long-term resilience ecosystems.

Language: Английский

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Response of soil fungal communities and their co-occurrence patterns to grazing exclusion in different grassland types

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

Published: July 3, 2024

Overgrazing and climate change are the main causes of grassland degradation, grazing exclusion is one most common measures for restoring degraded grasslands worldwide. Soil fungi can respond rapidly to environmental stresses, but response different types control has not been uniformly determined. Three (temperate desert, temperate steppe grassland, mountain meadow) that were closed 9 years used study effects on soil nutrients as well fungal community structure in three types. The results showed (1) 0–5 cm layer, significantly affected water content ( P < 0.05), pH, total phosphorous (TP), nitrogen-to-phosphorous ratio (N/P) changed all 0.05). Significant changes 5–10 layer after occurred meadow desert grasslands. (2) For types, Archaeorhizomycetes was abundant montane meadows, Dothideomycetes more than remaining two Grazing led insignificant dominant phyla α diversity, significant β diversity (3) areas have higher mean clustering coefficients modularity classes areas. In particular, highest class found (4) We also pH driving factor affecting structure, plant coverage a key composition, indirectly affects communities by nutrients. above suggest may regulate microbial ecological processes changing conducive recovery with improves stability grassland. Therefore, type should be considered when formulating suitable restoration programmes implemented. this provide new insights into exclusion, providing theoretical basis management restoration.

Language: Английский

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Metagenomic Insights into Coal Slag Remediation Effects on Soil and Microbial Health in Qinghai’s Muli Coal Mine

Microorganisms, Journal Year: 2024, Volume and Issue: 12(11), P. 2222 - 2222

Published: Nov. 1, 2024

Long-term coal mining in the Muli mine area of Qinghai Province has degraded soil quality and reduced microbial diversity, making it imperative to implement effective ecological restoration measures restore enhance ecosystem functions. This study evaluated samples under 11 treatments using metagenomic sequencing combined with analysis explore responses community structure function identify measures. demonstrated that significantly increased diversity richness, MLII1 (soil treated a chemical weathering agent, attapulgite, agent) MLIII1 sheep manure (2.4 kg/m

Language: Английский

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Maize–Soybean Rotation and Intercropping Increase Maize Yield by Influencing the Structure and Function of Rhizosphere Soil Fungal Communities

Microorganisms, Journal Year: 2024, Volume and Issue: 12(8), P. 1620 - 1620

Published: Aug. 8, 2024

Soil-borne diseases are exacerbated by continuous cropping and negatively impact maize health yields. We conducted a long-term (11-year) field experiment in the black soil region of Northeast China to analyze effects different systems on yield rhizosphere fungal community structure function. The included three systems: (CMC), maize-soybean rotation (MSR), intercropping (MSI). MSI MSR resulted 3.30-16.26% lower ear height coefficient 7.43-12.37% higher compared CMC. richness diversity fungi were 7.75-20.26% than relative abundances

Language: Английский

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Impact of climate warming on soil microbial communities during the restoration of the inner Mongolian desert steppe

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

Published: Sept. 6, 2024

Grazer exclosure is widely regarded as an effective measure for restoring degraded grasslands, having positive effects on soil microbial diversity. The Intergovernmental Panel Climate Change (IPCC) predicts that global surface temperatures will increase by 1.5-4.5°C the end of 21st century, which may affect restoration practices grasslands. This inevitability highlights urgent need to study effect temperature grassland communities, given their critical ecological functions.

Language: Английский

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Effects of grazing on temperate grassland ecosystems: A meta-analysis

Agriculture Ecosystems & Environment, Journal Year: 2024, Volume and Issue: 381, P. 109452 - 109452

Published: Dec. 30, 2024

Language: Английский

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