GSTDTAP
DOI10.1088/1748-9326/ab5de8
Snowpack properties vary in response to burn severity gradients in montane forests
Maxwell, Jordan; St Clair, Samuel B.
2019-12-01
发表期刊ENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
出版年2019
卷号14期号:12
文章类型Article
语种英语
国家USA
英文摘要

Wildfires are altering ecosystems globally as they change in frequency, size, and severity. As wildfires change vegetation structure, they also alter moisture inputs and energy fluxes which influence snowpack and hydrology. In unburned forests, snow has been shown to accumulate more in small clearings or in stands with low to moderate forest densities. Here we investigate whether peak snowpack varies with burn severity or percent overstory tree mortality post-fire in a mid-latitude, subalpine forest. We found that peak snowpack across the burn severity gradients increased 15% in snow-water equivalence (SWE) and 17% in depth for every 20% increase in overstory tree mortality due to burn severity. Snowpack quantity varied greatly between the two winter seasons sampled in this study with 114% more snow in 2016 versus 2015, yet the effect of burn severity on snowpack remained consistent. These data support previous studies showing increases in peak snow depth and SWE in burned forests but for the first time provides novel insights into how snow depth and SWE change as a function of burn severity. We conclude that changes not only in the frequency and size of wildfires, but also in the severity, can alter peak snow depth and SWE, with important potential implications for watershed hydrology.


英文关键词wildfire aspen watershed hydrology conifer water resources
领域气候变化
收录类别SCI-E
WOS记录号WOS:000506597800001
WOS关键词FIRE SEVERITY ; ENERGY-BALANCE ; WATER DYNAMICS ; CANOPY COVER ; ACCUMULATION ; WILDFIRE ; ABLATION ; IMPACTS ; CLIMATE ; STANDS
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
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/224710
专题环境与发展全球科技态势
作者单位Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA
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GB/T 7714
Maxwell, Jordan,St Clair, Samuel B.. Snowpack properties vary in response to burn severity gradients in montane forests[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(12).
APA Maxwell, Jordan,&St Clair, Samuel B..(2019).Snowpack properties vary in response to burn severity gradients in montane forests.ENVIRONMENTAL RESEARCH LETTERS,14(12).
MLA Maxwell, Jordan,et al."Snowpack properties vary in response to burn severity gradients in montane forests".ENVIRONMENTAL RESEARCH LETTERS 14.12(2019).
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