Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026005 |
The role of fire in the coevolution of soils and temperate forests | |
Assaf Inbar; Petter Nyman; Patrick N. J. Lane; Gary J. Sheridan | |
2020-07-11 | |
发表期刊 | Water Resources Research |
出版年 | 2020 |
英文摘要 | Climate drives the coevolution of vegetation and the soil that supports it. Wildfire dramatically affects many key eco‐hydro‐geomorphic processes but its potential role in coevolution of soil‐forest systems has been largely overlooked. The steep landscapes of southeastern Australia provide an excellent natural laboratory to study the role of fire in the coevolution of soil and forests, as they are characterized by temperate forest types, fire frequencies and soil depths that vary systematically with aridity. The aims of this study were to i) test the hypothesis that in Southeastern Australia, fire‐related processes are critical to explain the variations in coevolved soil‐forest system states across an aridity gradient, and ii) to identify the key processes and iii) feedbacks, involved. To achieve these aims we developed a numerical model that simulates the coevolution of soil‐forest systems which employ eco‐hydro‐geomorphic processes that are typical of the flammable forests of Southeastern Australia. A stepwise model evaluation, using measurements and published data, confirms the robustness of the model to simulate eco‐hydro‐geomorphic processes across the aridity gradient. Simulations that included fire replicated patterns of observed soil depth and forest cover across an aridity gradient, supporting our hypothesis. The contribution of fire to coevolution increased in magnitude with aridity, mainly due to the higher fire frequency and lower post‐fire infiltration capacity, increasing the rates of fire‐related surface runoff and erosion. Our results show that critical feedbacks between soil depth, vegetation and fire frequency dictates the trajectory and pace of the coevolution of flammable temperate forests and soils. |
领域 | 资源环境 |
URL | 查看原文 |
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/283295 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Assaf Inbar,Petter Nyman,Patrick N. J. Lane,et al. The role of fire in the coevolution of soils and temperate forests[J]. Water Resources Research,2020. |
APA | Assaf Inbar,Petter Nyman,Patrick N. J. Lane,&Gary J. Sheridan.(2020).The role of fire in the coevolution of soils and temperate forests.Water Resources Research. |
MLA | Assaf Inbar,et al."The role of fire in the coevolution of soils and temperate forests".Water Resources Research (2020). |
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