Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.12.041 |
Prescription side effects: Long-term, high-frequency controlled burning enhances nitrogen availability in an Illinois oak-dominated forest | |
Taylor, Quinn A.; Midgley, Meghan G. | |
2018-03-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 411页码:82-89 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Controlled burning is a common management technique used to control invasive understory plants and promote oak regeneration throughout the prairie-forest ecotone and across eastern deciduous forests. However, prescribed burning effects on oak forest and woodland soils remain largely unknown. As fire has significant and often disproportionate impacts on soil carbon (C), nitrogen (N), and phosphorus (P), evaluating the impacts of repeated, low-intensity prescribed burning on oak forest soil is fundamental for understanding and predicting burning effects on vegetation dynamics and ecosystem functions. The goal of this study was to evaluate relative changes in soil C and nutrient dynamics in response to three decades of annual, low-intensity controlled burning in an oak-dominated forest in northern Illinois. We found that annual burning increased soil organic and inorganic N availability and microbial biomass N. Burning also increased N cycling rates and N-degrading enzyme activity in the 5-15 cm soil layer. Surprisingly, annual burning had little effect on soil P pools and fluxes, likely due to intrinsically high soil P availability. Similarly, though total soil C increased, burning did not alter available C concentrations, microbial biomass C, C-degrading enzyme activities, or C mineralization rates. As such, annual burning created a positive feedback on inorganic N production, altering relationships among C, N, and P. In contrast with management goals, controlled burning often fails to enhance oak proliferation or decrease the abundance of invasive plants. As Eastern forests were historically N-limited, our study suggests a potential mechanism behind these restoration outcomes: frequent, low-intensity burning may produce soil environments that are incompatible with restoration goals. |
英文关键词 | Stoichiometry Carbon Nitrogen Phosphorous Enzyme activity Microbial biomass Fire Soil |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426409100009 |
WOS关键词 | SOIL MICROBIAL BIOMASS ; EASTERN NORTH-AMERICA ; N-P STOICHIOMETRY ; LITTER DECOMPOSITION ; DECIDUOUS FORESTS ; EXTRACTION METHOD ; PRESCRIBED FIRE ; ENZYME-ACTIVITY ; ORGANIC-MATTER ; HICKORY FOREST |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/24123 |
专题 | 气候变化 |
作者单位 | Inst Origin Morton Arboretum, Ctr Tree Sci, 4100 Illinois Route 53, Lisle, IL 60532 USA |
推荐引用方式 GB/T 7714 | Taylor, Quinn A.,Midgley, Meghan G.. Prescription side effects: Long-term, high-frequency controlled burning enhances nitrogen availability in an Illinois oak-dominated forest[J]. FOREST ECOLOGY AND MANAGEMENT,2018,411:82-89. |
APA | Taylor, Quinn A.,&Midgley, Meghan G..(2018).Prescription side effects: Long-term, high-frequency controlled burning enhances nitrogen availability in an Illinois oak-dominated forest.FOREST ECOLOGY AND MANAGEMENT,411,82-89. |
MLA | Taylor, Quinn A.,et al."Prescription side effects: Long-term, high-frequency controlled burning enhances nitrogen availability in an Illinois oak-dominated forest".FOREST ECOLOGY AND MANAGEMENT 411(2018):82-89. |
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