Effect of severe wildfire on soil phosphorus fractions and adsorption in a cold temperate coniferous forest after 5 years

European Journal of Soil Science, Journal Year: 2024, Volume and Issue: 75(2)

Published: March 1, 2024

Abstract Forest fires are a primary driver of biogeochemical processes in ecosystems and affect the soil nutrient balance by altering distribution organic matter associated nutrients as well composition availability elemental nutrients. We investigated changes soils’ phosphorus (P) fractions adsorption characteristics potassium dihydrogen orthophosphate (orthoP) myo ‐inositol hexakisphosphate (IHP) at two depths (0–5 5–10 cm) soils from sites differing fire severity: long‐unburned heavily burned. Five years after fire, there were increases total P extractable inorganic (H 2 O‐P, NaHCO 3 ‐Pi, NaOH‐Pi, D.HCl‐Pi C.HCl‐Pi) contents. Conversely, was decrease (NaHCO ‐Po, NaOH‐Po C.HCl‐Po). The for orthoP depth 0–5 cm dependent on amount supplied soil; low concentrations, burned showed lower than soil. However, high significantly larger that With respect to IHP, also more significant cm. both IHP higher Fire decreased binding degree (k 1 ) soil‐P solid phase increase capacity outweighed addition ash, resulting less leaching areas minimizing loss. Overall, forest soil, specifically during initial stage postfire recovery. These effects closely related direct influences iron oxide, aluminium oxide may even produce relatively long‐term recycling process entire ecosystem.

Language: Английский

A review of optimization and decision models of prescribed burning for wildfire management

Risk Analysis, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 23, 2024

Abstract Prescribed burning is an essential forest management tool that requires strategic planning to effectively address its multidimensional impacts, particularly given the influence of global climate change on fire behavior. Despite inherent complexity in prescribed burns, limited efforts have been made comprehensively identify critical elements necessary for formulating effective models. In this work, we present a systematic review literature optimization and decision models burning, analyzing 471 academic papers published last 25 years. Our study identifies four main types models: spatial‐allocation, spatial‐extent, temporal‐only, spatial–temporal. We observe growing number studies modeling primarily due expansion spatial‐allocation spatial–temporal There also increase as consider more affecting effectiveness. components models, including stakeholders, variables, objectives, influential factors, enhance model practicality. The examines solution techniques, such integer programming spatial allocation, stochastic dynamic probabilistic multiobjective balancing trade‐offs. These techniques' strengths limitations are discussed help researchers adapt methods specific challenges optimization. addition, investigate general assumptions relaxation Lastly, propose future research develop comprehensive incorporating behaviors, stakeholder preferences, long‐term impacts. Enhancing these models' accuracy applicability will enable decision‐makers better manage wildfire treatment outcomes.

Language: Английский

Disaster management and its impact on sustainable agriculture

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 113 - 143

Published: Oct. 11, 2024

Language: Английский