Warming Stimulated Soil Respiration in a Subalpine Meadow in North China DOI Creative Commons

Shuzheng Luo,

Jianhua Zhang,

Hufang ZHANG

et al.

Wuhan University Journal of Natural Sciences, Journal Year: 2023, Volume and Issue: 28(1), P. 77 - 87

Published: Feb. 1, 2023

In order to explore the response of soil respiration in grassland global warming, we carried out a warming experiment with open top chambers (OTCs) subalpine meadow, Mount Wutai north China. Our results showed meadow across 2 500-2 700 m above sea level (ASL), OTCs, increased by 2.00 μmol·m -2 ·s -1 as temperature 1.25 ℃ on average. Warming decreased moisture over periods except October 2019 when snow melted OTCs. effect peaked at 178.31% 2019. control and treatment, based exponential regression equations, alone accounted for 85.3% 61.2% variation, respectively. treatment explained 23.2% variation power equation while they were not significantly correlated each other. The relied altitudes well time year, but was inhibited moisture, labile carbon pool, available nitrogen. We concluded main factor influencing respiration, would stimulate meadows future. analysis provided new data characteristics mechanisms helped further understand relationship between cycle climate change.

Language: Английский

Local temperature increases reduce soil microbial residues and carbon stocks DOI
Xiaomin Zeng, Jiao Feng,

Dailin Yu

et al.

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(21), P. 6433 - 6445

Published: July 27, 2022

Warming is known to reduce soil carbon (C) stocks by promoting microbial respiration, which associated with the decomposition of residue (MRC). However, relative contribution MRC organic (SOC) across temperature gradients poorly understood. Here, we investigated SOC along two independent elevation our model system (i.e., Tibetan Plateau and Shennongjia Mountain in China). Our results showed that local increases were negatively correlated SOC. Further analyses revealed rising reduced via decreasing MRC, helps explain future reductions under climate warming. findings demonstrate warming has potential C sequestration increasing exacerbating positive feedback between CO2 efflux. study also considered influence multiple environmental factors such as pH moisture, more important controlling than traits life-style strategies metabolic efficiency. Together, work suggests an mechanism underlying long-term sequestration, implications for microbial-mediated process face global change.

Language: Английский

Citations

50
Degradation of Polymer Materials in the Environment and Its Impact on the Health of Experimental Animals: A Review DOI Open Access
X. Zhang, Zhenxing Yin,

Songbai Xiang

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(19), P. 2807 - 2807

Published: Oct. 3, 2024

The extensive use of polymeric materials has resulted in significant environmental pollution, prompting the need for a deeper understanding their degradation processes and impacts. This review provides comprehensive analysis environment impact on health experimental animals. It identifies common polymers, delineates pathways, describes resulting products under different conditions. covers physical, chemical, biological mechanisms, highlighting complex interplay factors influencing these processes. Furthermore, it examines implications products, using animals as proxies assessing potential risks to human health. By synthesizing current research, focuses studies related small organisms (primarily rodents invertebrates, supplemented by fish mollusks) explore effects polymer living underscores urgency developing implementing effective waste management strategies. These strategies are crucial mitigating adverse impacts degradation, thus promoting more sustainable interaction between activities natural environment.

Language: Английский

Citations

12
Time-lag effects of NEP and NPP to meteorological factors in the source regions of the Yangtze and Yellow Rivers DOI Creative Commons
Hengshuo Zhang, Xizhi Lv, Yongxin Ni

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 15

Published: Jan. 10, 2025

Vegetation productivity and ecosystem carbon sink capacity are significantly influenced by seasonal weather patterns. The time lags between changes in these patterns (including vegetation) responses is a critical aspect vegetation-climate ecosystem-climate interactions. These can vary considerably due to the spatial heterogeneity of vegetation ecosystems. In this study focused on source regions Yangtze Yellow Rivers (SCRYR), we utilized long-term datasets Net Primary Productivity (NPP) model-estimated Ecosystem (NEP) from2015 2020, combined with reconstructed 8-day scale climate sequences, conduct partial correlation regression analysis (isolating influence individual meteorological factors lag effects). found that length effects varies depending regional topography, types, sensitivity their ecological environments factors. region River (SCR), times for NPP NEP response temperature (Tem) longer, compared (SYR), where generally less than 10 days. long precipitation (Pre), ranging from 50 60 days, were primarily concentrated northwestern part SCR, while precipitation, 34 48 covered broad western area. exhibits least solar radiation (SR), exceeding 54 days 99.30% region. contrast, showed varying respect SR: short (ranging 0 15 days) observed areas, 55 64 evident areas. highest SVL, followed C3A, PW, BDS, C3 descending order. This examined spatiotemporal impacts climatic drivers both perspectives. findings crucial enhancing sequestration at important water sources China.

Language: Английский

Citations

1
Soil Microbial Community Composition and Diversity Analysis under Different Land Use Patterns in Taojia River Basin DOI Open Access
Zhe He, Chenglin Yuan,

Peirou Chen

et al.

Forests, Journal Year: 2023, Volume and Issue: 14(5), P. 1004 - 1004

Published: May 12, 2023

Soil microorganisms are greatly affected by their microenvironment. To reveal the influence of different land use patterns on composition and diversity soil bacterial fungal communities, this study analyzed microbial (bacteria fungi) community under (vegetable land, wasteland, woodland, cultivated land) based 16S rRNA, 18S high-throughput sequencing method in Taojia River Basin. Spearman analysis redundancy (RDA) were used to explore correlation between physicochemical properties composition, a partial least squares path model (PLS-PM) was constructed express causal relationship diversity. The results showed that species richness highest vegetable lowest wasteland. Proteobacteria is dominant phylum (20.69%–32.70%), Actinobacteria class (7.99%–16.95%). fungi woodland highest, while land. Mucoromycota, 29.39%, 41.36%, 22.67%, respectively. Ascomycota (42.16%) Sordariomyetes wasteland Mortierellomycetes Glomeromycetes Mucoromycota woodland. revealed groups communities had significant correlations with pH, clay, sand (p < 0.01). RDA moisture key environmental factors affecting communities. Fungal more than bacteria. These provided theoretical basis for changes river basins.

Language: Английский

Citations

18
Soil microbial community, dissolved organic matter and nutrient cycling interactions change along an elevation gradient in subtropical China DOI
Shuzhen Wang, Kate V. Heal, Qin Zhang

et al.

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 345, P. 118793 - 118793

Published: Aug. 22, 2023

Language: Английский

Citations

18
Aggregate-associated carbon contributes to soil organic carbon accumulation along the elevation gradient of Helan Mountains DOI
Mengyao Wu, Lin Chen,

Jinpeng Ma

et al.

Soil Biology and Biochemistry, Journal Year: 2022, Volume and Issue: 178, P. 108926 - 108926

Published: Dec. 22, 2022

Language: Английский

Citations

23
Effects of land use on soil microbial community structure and diversity in the Yellow River floodplain DOI Creative Commons

Xiongde Dong,

Leyun Yang,

Laura Sofie Harbo

et al.

Journal of Plant Ecology, Journal Year: 2022, Volume and Issue: 16(1)

Published: July 26, 2022

Abstract Soil microorganisms and their diversity are important bioindicators of soil carbon nutrient cycling. Land use type is a major determining factor that influences microbial community composition in floodplain ecosystems. However, how the structure communities respond to specific changes land use, as well main drivers these changes, still unclear. This study was conducted Yellow River examine effects on communities. Four types (shrubland, farmland, grassland forest) were selected, wherein shrubland served baseline. We measured using phospholipid fatty acids (PLFAs). significantly affected total, bacterial fungal PLFAs, gram-positive/negative PLFAs. Compared with shrubland, peanut farmland had higher total PLFAs forest pH phosphorus predominate explaining 37% 26% variability, respectively. nitrogen nitrate factors increasing diversity. Peanut highest content, stock, diversity, suggesting has great potential sink. Our findings indicated critical for maintaining sequestration.

Language: Английский

Citations

22
Carbon availability and microbial activity manipulate the temperature sensitivity of anaerobic degradation in a paddy soil profile DOI

Ronglin Su,

Xian Wu, Jin‐Li Hu

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 252, P. 118453 - 118453

Published: Feb. 9, 2024

Language: Английский

Citations

4
Effect of Soil Acidification on Temperature Sensitivity of Soil Respiration DOI Creative Commons
Lin Jin,

Keke Hua,

Linchuan Zhan

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(5), P. 1056 - 1056

Published: May 16, 2024

Soil pH significantly impacts microbial activity and community assembly, which in turn determines the temperature sensitivity (Q10) of soil respiration. Due to high acidification China, it is necessary understand how Q10. Here, Q10 respiration was examined a long-term field experiment (1982–present) with different caused by fertilization management. In this experiment, we selected treatments neutral pH: (1) no crops (CK); (2) without (NF); low (3) chemical (NPK); (4) combined wheat straw incorporation (WS). Under natural changes, observed that lowered value Considering only strongly associated composition, alpha diversity, ammonium nitrogen. interaction between temperature, warming strengthened negative effect on respiration, pathway through mediated included not biomass but also soil’s available phosphorus. This work enhanced our insights into relationships Q10, identifying important properties key environmental factors.

Language: Английский

Citations

4
Response of soil basal respiration rates, microbial attributes, and organic matter composition to land‐use change DOI
Ming Gao, Wei Hu, Meng Li

et al.

Soil Science Society of America Journal, Journal Year: 2025, Volume and Issue: 89(2)

Published: March 1, 2025

Abstract Land‐use change directly impacts soil basal respiration (Br), microbial attributes, and organic matter (SOM) composition. However, the role of attributes SOM composition in influencing Br under land‐use changes remains largely undetermined. We examined how interactions between physicochemical properties, chemical structure, regulate across three types, cropland, forest, grassland, Mollisol Arenosol Horqin Sandy Land. The results showed that Br, phospholipid fatty acid content, relative peak areas aliphatic aromatic compounds were significantly lower cropland than forest grassland. Additionally, exhibited poorer properties compared to ( p < 0.05). Soil (3.60–5.56 mgCO 2 ‐C kg −1 h ) was higher (0.86–2.60 , G + /G − ratios bacteria identified as main predictors Arenosol, respectively. structural equation model revealed are primary drivers it indirectly through Our findings instrumental understanding carbon turnover during changes.

Language: Английский

Citations

0