Impact of climate warming on vegetation cover: positive effects of native artiodactyla vs. grazing pressure in Alborz Protected Area

Frontiers in Conservation Science, Год журнала: 2025, Номер 6

Опубликована: Янв. 28, 2025

Introduction Climate warming, combined with grazing pressures, poses significant challenges to vegetation cover and ecosystem stability. In particular, livestock is a primary factor in degradation, adversely affecting plant diversity, soil health, key ecological interactions. Methods This study investigates the impact of on Alborz region Iran, focusing comparison between native herbivores (Artiodactyla) Central Protected Area (CAPA). We utilized 30 years NDVI (Normalized Difference Vegetation Index) data from May June (1994–2024) assess dynamics evaluate influence climate grazing. ANOVA, Pearson correlation, regression analyses were performed identify relationships cover, variables (temperature rainfall), intensity. Results show increase Golestanak (without livestock) exhibiting stronger positive response (R ² = 65%), while Zānoos (higher density) showed greater variability 58%). demonstrated more correlation temperature rainfall, reflecting resilience climatic stressors beneficial effect moderate by Artiodactyla. contrast, fluctuation trends due high pressure. Discussion highlights that warming can positively affect intensive impede these gains, underlining importance adaptive management strategies for maintaining health.

Язык: Английский

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Large herbivore grazing accelerates litter decomposition in terrestrial ecosystems

The Science of The Total Environment, Год журнала: 2024, Номер 922, С. 171288 - 171288

Опубликована: Фев. 27, 2024

Язык: Английский

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Ranking environmental and edaphic attributes driving soil microbial community structure and activity with special attention to spatial and temporal scales

mLife, Год журнала: 2024, Номер 3(1), С. 21 - 41

Опубликована: Март 1, 2024

Abstract The incredibly complex soil microbial communities at small scales make their analysis and identification of reasons for the observed structures challenging. Microbial community structure is mainly a result inoculum (dispersal), selective advantages those organisms under habitat‐based environmental attributes, ability colonizers to sustain themselves over time. Since protective, its inhabitants have long adapted varied conditions, significant portions are likely stable. Hence, substantial portion will not correlate often measured attributes. We suggest that drivers be ranked on basis importance fundamental needs microbes: (i) supply energy, i.e., organic carbon electron acceptors; (ii) effectors or stressors, pH, salt, drought, toxic chemicals; (iii) macro‐organism associations, plants seasonality, animals fecal matter, fauna; (iv) nutrients, in order, N, P, probably lesser importance, other micronutrients, metals. relevance also varies with spatial time scales, example, aggregate field regional, persistent dynamic populations transcripts, extent phylogenetic difference, hence phenotypic differences organismal groups. present summary matrix provide guidance which important particular studies, special emphasis wide range temporal illustrate this genomic population (rRNA gene) data from selected studies.

Язык: Английский

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Grazing intensity, duration, and grassland type determine the relationship between soil microbial diversity and ecosystem multifunctionality in Chinese grasslands: A meta-analysis

Ecological Indicators, Год журнала: 2023, Номер 154, С. 110801 - 110801

Опубликована: Авг. 25, 2023

Grazing can alter soil microbial diversity and ecosystem multifunctionality (EMF) through feeding, trampling, excreta deposition. However, it remains unclear how grazing intensity duration across Chinese grasslands affect the relationship between EMF. Here, we conducted a meta-analysis to analyze responses of EMF disturbance using 54 publications with 62 sample sites from alpine temperate in China. The results showed that tended decrease increasing intensity. Bacterial was significantly negatively correlated under moderate grazing, whereas fungal positively heavy grazing. Both bacterial regulated effects on durations up 5 years. Furthermore, typical steppe but grassland, steppe. Our highlight importance maintaining grassland ecosystem. We suggest both intensity, type should be seriously considered conservation biodiversity sustainability services functions.

Язык: Английский

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A new strategy of using periphyton to simultaneously promote remediation of PAHs-contaminated soil and production of safer crops

Environmental Research, Год журнала: 2024, Номер 246, С. 118149 - 118149

Опубликована: Янв. 8, 2024

Язык: Английский

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Microbial carbon capture - evolving trends, interconnections, and recent spotlights of the past three decades

Chemical Engineering Journal, Год журнала: 2024, Номер 482, С. 148970 - 148970

Опубликована: Янв. 22, 2024

Язык: Английский

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Global effects of livestock grazing on ecosystem functions vary with grazing management and environment

Agriculture Ecosystems & Environment, Год журнала: 2024, Номер 378, С. 109296 - 109296

Опубликована: Сен. 13, 2024

Язык: Английский

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Grazing Intensity Modifies Soil Microbial Diversity and Their Co-Occurrence Networks in an Alpine Steppe, Central Tibet

Microorganisms, Год журнала: 2025, Номер 13(1), С. 138 - 138

Опубликована: Янв. 10, 2025

Grazing intensity is one of the crucial anthropogenic activities on alpine grasslands. However, how grazing affects soil microorganism diversities and their co-occurrence networks in steppe remains uncertain. We carried out a controlled experiment (null grazing, CK; moderate MG; heavy HG) typical Lhasa River Basin, Central Tibet, China. used high-throughput sequencing to find sequences bacterial 16S rRNA fungal ITS gene amplicons. Then, we analyzed alpha beta set up that show often they occur together. MG significantly increased Shannon index changed community structure. In contrast, HG decreased ACE Chao1 indices also structure (p < 0.05). Linear mixed-effect model revealed available phosphorus impacted Shannon, ACE, across intensities, while total carbon subsoil affected these indicators fungi. Moreover, complexity network community, simplified it. both made less complicated. This shows has different impacts microbes interact with each other. Therefore, sustainable necessitates deeper understanding biodiversity conservation

Язык: Английский

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Medium-Term Effect of Livestock Grazing Intensities on the Vegetation Dynamics in Alpine Meadow Ecosystems

Land, Год журнала: 2025, Номер 14(3), С. 591 - 591

Опубликована: Март 12, 2025

The dynamics and plant composition of toxic weeds in alpine meadows are strongly influenced by management practices such as livestock grazing. Here, the effect grazing on vegetation soil characteristics within an meadow ecosystem was assessed over a 5-year period. experimental treatments comprised no (control), light (5 sheep/ha), moderate (10 heavy (15 sheep/ha). both edible grass weeds, along with soil’s physicochemical biological properties, were evaluated. Under grazing, biomass increased 15.0%, while species decreased 57.0% compared to control. findings indicated that after 5 years, changed significantly, Taraxacum mongolicum Tibetia himalaica decreasing disappearing under treatments. Conversely, like Stellera chamaejasme Euphorbia micractina emerged or Additionally, richness from 6.3 control 14.2 Regarding levels glucosidase, amylase, cellulose 39.0%, 53.0%, 40.0%, respectively. amount available potassium initially then results demonstrated quality cover properties directly depend land management. Overall, kept better chemical state palatable plants at desirable level, which also controlled abundance weeds. Enhancing nutrient conditions, adding nitrate fertilizers, can be effective restoring grasslands have been severely degraded

Язык: Английский

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Effect of grazing on soil enzyme activities in grassland ecosystems: A meta‐analysis

Grassland Science, Год журнала: 2025, Номер unknown

Опубликована: Март 17, 2025

Abstract Grazing causes major disturbances to grassland ecosystems and may alter soil enzyme activity. However, the mechanism by which grazing intensity, livestock type, duration environmental (e.g., climate soil) factors affect response of enzymes is currently unknown. This meta‐analysis investigated underlying intrinsic mechanisms based on 443 observations collected from 38 studies. Overall, had a negative effect activity, especially activities β‐glucosidase, sucrase, urease alkaline phosphatase. Activity in varied depending animals duration. Negative effects increased with increasing as both moderate heavy significantly reduced activity 10.08% 20.06%, respectively. All levels intensity carbon‐cycle‐related sucrase but there were no significant N‐acetyl‐β‐D glucosaminidase or leucine aminopeptidase, two involved nitrogen cycle. Among animals, sheep, cattle mixed all exception positive β‐glucosidase protease, participate carbon cycle, glucosaminidase, while short‐term (<5 years) medium‐term (5–10 ameliorated number years increased, such that long‐term (>10 effects. The interactions between climate, other terms impact varied. Because mediate nutrient cycling, maintaining health requires decision‐makers appropriately reduce

Язык: Английский

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