| DOI: | 10.1002/2013GL058716
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| 论文题名: | Assessing urbanization impacts on catchment transit times |
| 作者: | Soulsby C.; Birkel C.; Tetzlaff D.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10474
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| EISSN: | 1944-10205
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| 出版年: | 2014
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| 卷: | 41, 期:2 | | 起始页码: | 442
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| 结束页码: | 448
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| 语种: | 英语
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| 英文关键词: | cumulative impacts
; isotopes
; tracers
; transit times
; urban hydrology
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| Scopus关键词: | Catchments
; Isotopes
; Radioactive tracers
; Runoff
; Cumulative impacts
; Disturbed environments
; Gamma distribution
; Hydrologic impacts
; Transit time
; Transit-time distributions
; Urban hydrology
; Urbanization impact
; Urban growth
; catchment
; precipitation (climatology)
; stable isotope
; tracer
; uncertainty analysis
; urban area
; urbanization
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| 英文摘要: | Stable isotopes have potential for assessing the hydrologic impacts of urbanization, although it is unclear whether established methods of isotope modeling translate to such disturbed environments. We tested two transit time modeling approaches (using a gamma distribution and a two-parallel linear reservoir (TPLR) model) in a rapidly urbanizing catchment. Isotopic variability in precipitation was damped in streams with attenuation inversely correlated with urban cover. The models captured this reasonably well, although the TPLR better represented the integrated dual response of urban and nonurban areas with reduced uncertainty. Percent urban cover influenced the shape of the catchment transit time distribution. Total urban cover reduced the mean transit time to <10 days compared with ∼1 year and ∼2-3 years with 63% and 13% urbanization, respectively, while it was at >4 years for nonurban sites. ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893182806&doi=10.1002%2f2013GL058716&partnerID=40&md5=b6271255aa75008d44e831bfeb193734
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7738
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Northern Rivers Institute, School of Geosciences, University of Aberdeen, Aberdeen, United Kingdom
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| Recommended Citation: | |
Soulsby C.,Birkel C.,Tetzlaff D.. Assessing urbanization impacts on catchment transit times[J]. Geophysical Research Letters,2014-01-01,41(2).
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