期刊
HYDROLOGICAL SCIENCES JOURNAL
卷 67, 期 9, 页码 1356-1371出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/02626667.2022.2081508
关键词
hydrological response; hydraulic response; benthic invertebrates; wildfire; streamflow; habitat modelling
资金
- State Scholarships Foundation [MIS5033021 (2019-050-0503-18338)]
- European Union (European Social Fund -ESF) through the Operational Programme Human Resources Development, Education and Lifelong Learning [MIS -5033021]
This study modeled the changes in hydrology, hydraulics and habitat suitability in a Mediterranean catchment after a wildfire. The results showed that the wildfire increased the peak velocities and depths, and post-fire rainfall worsened hydro-hydraulic extremes. However, these extreme conditions had minimal impact on the habitat suitability for macroinvertebrates.
We modelled hydrological, hydraulic and habitat suitability changes in a Mediterranean catchment after a wildfire. Gauged pre/post-fire hourly discharges were used to assess actual pre/post-fire hydrological conditions. To remove the weather variability effect, daily pre/post-fire discharges were simulated under the same weather conditions. An eco-hydraulic model was employed to calculate flow velocities, water depths and macroinvertebrate habitat suitability at various discharges across a 165 m long reach. The fire increased the magnitude and frequency of peak velocities and depths by 6.5-475%. Increased post-fire rainfall exacerbated hydrological-hydraulic extremes. However, the short duration of post-fire extremes led to small impacts on the habitat suitability for macroinvertebrates, which were stressed for a maximum 18.4% of the time after the fire (350 days in five years). In small Mediterranean-climate headwaters, after wildfires, less frequent streamflow becomes more frequent, high and of short duration. Macroinvertebrates largely resist such short-term, low-magnitude hydrological-hydraulic changes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据