Arid
DOI10.1088/1748-9326/aa7091
Key landscape and biotic indicators of watersheds sensitivity to forest disturbance identified using remote sensing and historical hydrography data
Buma, Brian1; Livneh, Ben2,3
通讯作者Buma, Brian
来源期刊ENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
出版年2017
卷号12期号:7
英文摘要

Water is one of the most critical resources derived from natural systems. While it has long been recognized that forest disturbances like fire influence watershed streamflow characteristics, individual studies have reported conflicting results with some showing streamflow increases postdisturbance and others decreases, while other watersheds are insensitive to even large disturbance events. Characterizing the differences between sensitive (e.g. where streamflow does change postdisturbance) and insensitive watersheds is crucial to anticipating response to future disturbance events. Here, we report on an analysis of a national[scale, gaged watershed database together with high[resolution forest mortality imagery. A simple watershed response model was developed based on the runoff ratio for watersheds (n = 73) prior to a major disturbance, detrended for variation in precipitation inputs. Post[disturbance deviations from the expected water yield and streamflow timing from expected (based on observed precipitation) were then analyzed relative to the abiotic and biotic characteristics of the individual watershed and observed extent of forest mortality. The extent of the disturbance was significantly related to change in post[disturbance water yield (p< 0.05), and there were several distinctive differences between watersheds exhibiting post[disturbance increases, decreases, and those showing no change in water yield. Highly disturbed, arid watersheds with low soil: water contact time are the most likely to see increases, with the magnitude positively correlated with the extent of disturbance. Watersheds dominated by deciduous forest with low bulk density soils typically show reduced yield post[disturbance. Postdisturbance streamflow timing change was associated with climate, forest type, and soil. Snowy coniferous watersheds were generally insensitive to disturbance, whereas finely textured soils with rapid runoff were sensitive. This is the first national scale investigation of streamflow postdisturbance using fused gage and remotely sensed data at high resolution, and gives important insights that can be used to anticipate changes in streamflow resulting from future disturbances.


英文关键词forest disturbance watershed water supply hydrology remote sensing statistical modeling
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000406020000004
WOS关键词TREE DIE-OFF ; VEGETATION CHANGES ; SNOW ACCUMULATION ; YIELD ; CATCHMENT ; CLIMATE ; SOIL ; STREAMFLOW ; INFILTRATION ; EVAPORATION
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/198759
作者单位1.Univ Alaska Southeast, Dept Nat Sci, Juneau 11120 Glacier Highway, Juneau, AK 99801 USA;
2.Univ Colorado, Dept Civil Environm & Architectural Engn, 428 UCB, Boulder, CO 80309 USA;
3.Univ Colorado, Cooperat Inst Res Environm Sci, 216 UCB, Boulder, CO 80309 USA
推荐引用方式
GB/T 7714
Buma, Brian,Livneh, Ben. Key landscape and biotic indicators of watersheds sensitivity to forest disturbance identified using remote sensing and historical hydrography data[J],2017,12(7).
APA Buma, Brian,&Livneh, Ben.(2017).Key landscape and biotic indicators of watersheds sensitivity to forest disturbance identified using remote sensing and historical hydrography data.ENVIRONMENTAL RESEARCH LETTERS,12(7).
MLA Buma, Brian,et al."Key landscape and biotic indicators of watersheds sensitivity to forest disturbance identified using remote sensing and historical hydrography data".ENVIRONMENTAL RESEARCH LETTERS 12.7(2017).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Buma, Brian]的文章
[Livneh, Ben]的文章
百度学术
百度学术中相似的文章
[Buma, Brian]的文章
[Livneh, Ben]的文章
必应学术
必应学术中相似的文章
[Buma, Brian]的文章
[Livneh, Ben]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。