Journal of soil science and plant nutrition, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 28, 2024
Language: Английский
Applied Soil Ecology, Journal Year: 2024, Volume and Issue: 196, P. 105303 - 105303
Published: Jan. 28, 2024
Soil microbial communities are ubiquitous and essential for the functioning of soil system. The use fire is a common practice in rotational shifting cultivation (RSC) to clear land after cutting vegetation cultivation. However, three main questions remain unanswered: (1) What more sensitive between bacteria fungi RSC fields? (2) kinds bacterial fungal taxa resistant (3) Does affect complexity networks To address these questions, surface samples (0–2 cm depth) were collected from sites with 10 years fallow Chiang Mai Province, northern Thailand, at different time points: before burning (BB), 5 min (AB), 1 month (AB-1 M). results revealed that exhibited greater sensitivity compared fungi. After one burning, richness diversity increased significantly recovered rapidly than fungi, likely due rise pH post-fire. Heat-resistant detected following event. Specifically, within community, phylum Firmicutes substantial increase around 95 % (BB = 0.63 %, AB 96.31 %), while genera Bacillus 0.16 38.53 Alicyclobacillus 0.14 17.10 Aneurinibacillus 0.03 10.48 %) showed over tenfold fire. In Ascomycota 31.46 96.47 experienced significant At genus level, Penicillium 4.99 54.14 Aspergillus 3.20 14.50 Hamigera 0.02 10.07 displayed dominant increases response Co-occurrence network analysis tended form complex bacteria. both declined but rebounded month. Our study underscores significance disturbance shaping dynamics fields.
Language: Английский
Citations
8
Agriculture, Journal Year: 2024, Volume and Issue: 14(9), P. 1660 - 1660
Published: Sept. 23, 2024
Fire, a prevalent land management tool in rotational shifting cultivation (RSC), has long been debated for its immediate disruption of surface soil, vegetation, and microbial communities. While low-intensity short-duration slash-and-burn techniques are considered beneficial overall soil function, the dual nature fire’s impact warrants comprehensive exploration. This review examines both detrimental effects fire on properties within context RSC. We highlight that research composition, carbon, nitrogen dynamics following events RSC is gaining momentum. After fires, typically shows decreases porosity, clay content, aggregation, cation exchange capacity, while sand pH, available phosphorus, organic tend to increase. There remains ongoing debate regarding bulk density, silt electrical conductivity, total nitrogen, exchangeable ions (K+, Ca2+, Mg2+). Certain bacterial diversity often increases, fungal communities decline during post-fire recovery, influenced by chemical properties. Soil erosion major concern because fire-altered structures heighten risks, underscoring need sustainable strategies. Future directions proposed, including use advanced technologies like remote sensing, UAVs, sensors monitor impacts, as well socio-economic studies balance traditional practices with modern sustainability goals. aims inform agricultural productivity ecological health systems.
Language: Английский
Citations
8
Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 171 - 188
Published: Jan. 1, 2025
Citations
0
Environmental Monitoring and Assessment, Journal Year: 2025, Volume and Issue: 197(4)
Published: March 11, 2025
Language: Английский
Citations
0
Journal of Fungi, Journal Year: 2024, Volume and Issue: 10(1), P. 65 - 65
Published: Jan. 14, 2024
It is generally believed that mycorrhiza a microecosystem composed of mycorrhizal fungi, host plants and other microscopic organisms. The Rhododendron dauricum more complex the diverse morphology our investigated results displays both typical ericoid characteristics ectomycorrhizal traits. ectendoomycorrhiza, where mycelial invade from outside into root cells, have also been observed. In order to further clarify fungi members fungal communities R. mycorrhiza, explore effects vegetation soil biological factors on their community structure, we selected two woodlands in northeast China as samples—one mixed forest Quercus mongolica, dauricum, Q. Pinus densiflor. sampling time was during local growing season, June September. High-throughput sequencing yielded total 3020 amplicon sequence variants (ASVs), which were based internal transcribed spacer ribosomal RNA (ITS rRNA) via Illumina NovaSeq platform. different habitats there are differences diversity obtained niches, specifically structure forests, found, exhibits greater stability, with relatively minor changes over time. Soil identified primary source within niche, abundance niches significantly influenced by pH, organic matter, available nitrogen. relationship between simultaneously found be intricate, while genus Hydnellum emerges central among niches. However, currently substantial gap foundational research this genus, including fact have, compared present soil, proven sensitive moisture.
Language: Английский
Citations
3
Forests, Journal Year: 2024, Volume and Issue: 15(4), P. 606 - 606
Published: March 27, 2024
Forest fires are among the most influential drivers of changes in forest soil bacterial diversity. Nevertheless, little is known regarding effects on maintaining complex interactions that preserve ecosystem stability. Therefore, this study characterized alterations community composition and diversity within taiga forests subjected to varying disturbance intensities. Particularly, examined a Larix gmelinii fire-burnt site Daxinganling, analyzing structure function across light, moderate, heavy sites, as well control sample site, utilizing Illumina MiSeq technology. Through an assessment physicochemical properties (moisture content (MC), pH, microbial biomass carbon (MBC), organic (SOC), total nitrogen (TN), available (AN), phosphorus (AP), potassium (AP)), we explored influence microenvironment at burnt under different Our findings demonstrated (1) there was no significant change Chao index bacteria intensities, whereas Shannon decreased significantly (p < 0.05) Simpson increased light moderate disturbance. (2) The relative abundance dominant phyla, such Proteobacteria, Actinobacteriota, did not rare species, Acidipila, Occallatibacter, Acidibacter, experienced increase genus level. (3) results principal coordinates analysis (PCoA) canonical correlation (CCA) revealed differences Beta interference exhibited = 0.001), with MC, TN, AN, AK identified influencing factors. (4) FAPROTAX functional prediction analyses were conducted assess involved Cellulolysis, Chemoheterotrophy, Aerobic_Chemoheterotrophy Chemoheterotrophy being Collectively, our intensities caused by affected Alpha diversity, communities forests, key Additionally, presence numerous species suggests their role pioneer succession communities.
Language: Английский
Citations
2
Fire, Journal Year: 2024, Volume and Issue: 7(5), P. 163 - 163
Published: May 7, 2024
Ecosystems are frequently disturbed by fires that have an important impact on the soil environment and composition of organisms. In order to provide a baseline for current research identify trends effects wildland fire biological changes, available literature was identified from Web Science database, covering period 1998/1998/1999 (the year earliest publication in this field) 2023. A bibliometric analysis performed data were visually displayed number publications, countries, authors, institutions, keywords representing hotspots. Specifically, environment, microorganisms fauna analyzed. The results show annual publications describing increasing over time, while those fewer their remains constant. largest papers originate United States, with States Department Agriculture as institution output. three authors Stefan H. Doerr, Manuel Esteban Lucas-Borja Jan Jacob Keizer. hotspots, keywords, highly concentrated wildfire, fire, organic matter, biodiversity, amongst others. This study comprehensively analyzes situation changes organisms, provides reference relevant scientific researchers trend future
Language: Английский
Citations
2
Microorganisms, Journal Year: 2024, Volume and Issue: 12(5), P. 959 - 959
Published: May 10, 2024
The soil contains abundant and diverse microorganisms, which interrelate closely with the aboveground vegetation impact structure function of forest ecosystem. To explore effect diversity on microbial functional in taiga forests, we selected significantly different important values Larix gmelinii as experimental grouping treatments based plant investigation from fixed plots Da Xing’anling Mountains. Following that, collected samples applied Biolog-ECO microplate method to investigate differences carbon source utilization, features factors influencing them forests. AWCD decreased value grew, microorganisms preferred carboxylic acids, amino carbohydrates over polymers, phenolic amines. Shannon McIntosh indexes increase (p < 0.05) were positively correlated SOC, MBC, C/N, pH, but negatively TN, AP, AN. Redundancy analysis revealed significant effects AN, WC. sum up, heterogeneous habitats forests altered diversity.
Language: Английский
Citations
1
Microorganisms, Journal Year: 2024, Volume and Issue: 12(8), P. 1666 - 1666
Published: Aug. 13, 2024
In order to study the effects of wildfires on soil carbon dioxide (CO2) emissions and microbial communities in planted forests, Pinus massoniana Lamb. Cunninghamia lanceolata (Lamb.) Hook. forests were selected as research subjects. Through a culture test with 60 days indoor constant temperature, physical chemical properties, organic mineralization, components, enzyme activity, community structure changes two plantations after fire analyzed. The results showed that significantly reduced CO2 from by 270.67 mg·kg−1 470.40 mg·kg−1, respectively, exhibiting greatest reduction compared unburned soils. Bioinformatics analysis revealed abundance Proteobacteria decreased 6.00% 4.55%, wildfires. Additionally, redundancy indicated significant positive correlation between emissions, suggesting decrease may inhibit emissions. exhibited increase available nutrients inhibition activities wildfire. more, indicating stronger adaptive capacity environmental following summary, wildfire led most pronounced thereby mitigating region.
Language: Английский
Citations
1
Environmental Microbiome, Journal Year: 2024, Volume and Issue: 19(1)
Published: Nov. 1, 2024
With global climate change, ecosystems are affected, some of which more vulnerable than others, such as alpine ecosystems. Microbes play an important role in environmental change Plants and microbes tightly associated, symbiotic or commensal microorganisms crucial for plants to respond stress, particularly plants. The current study subalpine plant microbiome only stays at the community structure scale, but its ecological function mechanism help adapt harsh environments have not received enough attention. Therefore, it is essential systematically understand structure, functions mechanisms microbial plants, will be helpful conservation using synthetic communities future. This review mainly summarizes research progress mediating cold adaptation from following three perspectives: (1) Microbiome their unique taxa plants; (2) stress; (3) Mechanisms by promotes low-temperature environments. Finally, we also discussed future application high-throughput technologies development existing knowledge could improve our understanding In addition, perspective further studies on microbes' confirmation manipulations engineering were discussed.
Language: Английский
Citations
1