Pile burns as a proxy for high severity wildfire impacts on soil microbiomes DOI Creative Commons
Julie A. Fowler, Amelia R. Nelson, Emily K. Bechtold

et al.

Geoderma, Journal Year: 2024, Volume and Issue: 448, P. 116982 - 116982

Published: July 29, 2024

Wildfires in the western US are increasing frequency, size, and severity. These disturbances alter soil microbiome structure function, with greater fire severity leading to more pronounced impacts bacterial, archaeal, fungal communities. changes have implications for provisioning of microbially-mediated ecosystem services (e.g., carbon sequestration, clean water supplies) typically associated forested watersheds. Challenges sampling wildfire-impacted areas immediately post-burn limited our assessment short-term (i.e., days weeks) understanding how microbial populations may influence post-fire biogeochemistry recovery. The identification potential high wildfire proxies help address some these knowledge gaps. One proxy is pile burns scars, which produced from a set common techniques fuel disposal site preparation conifer forests throughout beyond. We sampled depth-resolved layers fire-impacted combusted litter woody materials series recent burn scars near West Yellowstone, Montana nearby unburned mineral controls assess whether exhibited signatures characteristic forest soils impacted by wildfire. Changes nitrogen chemistry patterns alpha beta diversity broadly aligned those observed following wildfire, particularly enrichment so-called 'pyrophilous' taxa. Furthermore, many taxa enriched burned likely encoded putative traits that benefit microorganisms colonizing environments, such as fast growth or utilization pyrogenic substrates. suggest represent useful along experimental gradient muffle furnace pyrocosm studies largescale prescribed field advance (and related layers, like ash) wildfires, when coupled manipulation. Finally, we discuss existing research gaps experimentally manipulated could be utilized address.

Language: Английский

Long-term soil nutrient and understory plant responses to post-fire rehabilitation in a lodgepole pine forest DOI
Sonja Kaiser, Timothy S. Fegel, David M. Barnard

et al.

Forest Ecology and Management, Journal Year: 2024, Volume and Issue: 575, P. 122359 - 122359

Published: Nov. 9, 2024

Language: Английский

Citations

1
Microbiomes of urban trees: unveiling contributions to atmospheric pollution mitigation DOI Creative Commons
Isabella Gandolfi, Claudia Canedoli, Asia Rosatelli

et al.

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

Published: Nov. 11, 2024

Urban trees are crucial in delivering essential ecosystem services, including air pollution mitigation. This service is influenced by plant associated microbiomes, which can degrade hydrocarbons, support tree health, and influence ecological processes. Yet, our understanding of microbiomes remains limited, thus affecting ability to assess quantify the services provided as complex systems. The main hypothesis this work was that concur hydrocarbon biodegradation, tested through three case studies, collectively investigated two micro-habitats (phyllosphere cavity organic soil-TCOS) under various conditions representing diverse scenarios, applying different culture-based molecular techniques at scales. integration all results a more comprehensive role urban trees. Firstly, bacterial strains isolated from phyllosphere

Language: Английский

Citations

1
Effects of Substrate Composition on the Growth Traits of Grafted Seedling in Macadamia (Macadamia integrifolia) Nuts DOI Creative Commons

Qiujin Tan,

Chunheng Zhou,

Peng Xu

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(12), P. 1700 - 1700

Published: June 19, 2024

Macadamia nut plantings in China are expanding year by year. In order to breed and promote superior varieties, this study analyzed the effects of different rootstocks scions on survival rate grafted seedlings, then selected best substrate composition for plant growth. The results showed that HAES788 variety as rootstock Guire No. 1 scion was highest, reaching 96%. optimal grafting time December better than March. Furthermore, among 16 formulations, T12, T13, T15, T16 had advantages agglomerated soil more well-developed root systems compared CK made loess. height, stem diameter, leaf length, width, dry weight aboveground underground parts seedlings planted these formulations were significantly higher those plants CK. addition, improved organic matter, total nitrogen, potassium content soils, but little improvement observed phosphorus after 13 months. Overall, macadamia times December, with being scion. T16. This provides a solid foundation production high-quality plants.

Language: Английский

Citations

0
Pile burns as a proxy for high severity wildfire impacts on soil microbiomes DOI Creative Commons
Julie A. Fowler, Amelia R. Nelson, Emily K. Bechtold

et al.

Geoderma, Journal Year: 2024, Volume and Issue: 448, P. 116982 - 116982

Published: July 29, 2024

Wildfires in the western US are increasing frequency, size, and severity. These disturbances alter soil microbiome structure function, with greater fire severity leading to more pronounced impacts bacterial, archaeal, fungal communities. changes have implications for provisioning of microbially-mediated ecosystem services (e.g., carbon sequestration, clean water supplies) typically associated forested watersheds. Challenges sampling wildfire-impacted areas immediately post-burn limited our assessment short-term (i.e., days weeks) understanding how microbial populations may influence post-fire biogeochemistry recovery. The identification potential high wildfire proxies help address some these knowledge gaps. One proxy is pile burns scars, which produced from a set common techniques fuel disposal site preparation conifer forests throughout beyond. We sampled depth-resolved layers fire-impacted combusted litter woody materials series recent burn scars near West Yellowstone, Montana nearby unburned mineral controls assess whether exhibited signatures characteristic forest soils impacted by wildfire. Changes nitrogen chemistry patterns alpha beta diversity broadly aligned those observed following wildfire, particularly enrichment so-called 'pyrophilous' taxa. Furthermore, many taxa enriched burned likely encoded putative traits that benefit microorganisms colonizing environments, such as fast growth or utilization pyrogenic substrates. suggest represent useful along experimental gradient muffle furnace pyrocosm studies largescale prescribed field advance (and related layers, like ash) wildfires, when coupled manipulation. Finally, we discuss existing research gaps experimentally manipulated could be utilized address.

Language: Английский

Citations

0