DOI: 10.5194/hess-23-1725-2019
论文题名: Using paired catchments to quantify the human influence on hydrological droughts
作者: Van Loon A.F. ; Rangecroft S. ; Coxon G. ; Naranjo J.A.B. ; Van Ogtrop F. ; Van Lanen H.A.J.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2019
卷: 23, 期: 3 起始页码: 1725
结束页码: 1739
语种: 英语
Scopus关键词: Abstracting
; Catchments
; Drought
; Groundwater
; Land use
; Reservoir management
; Runoff
; Time series
; Water treatment
; Climate variability
; Disturbance records
; Groundwater abstraction
; Hydrological droughts
; Model-based method
; Qualitative information
; Reservoir buildings
; Water infrastructure
; Reservoirs (water)
; catchment
; drought
; groundwater abstraction
; human activity
; land cover
; land use change
; quantitative analysis
; reservoir
; streamflow
英文摘要: Quantifying the influence of human activities, such as reservoir building, water abstraction, and land use change, on hydrology is crucial for sustainable future water management, especially during drought. Model-based methods are very time-consuming to set up and require a good understanding of human processes and time series of water abstraction, land use change, and water infrastructure and management, which often are not available. Therefore, observation-based methods are being developed that give an indication of the direction and magnitude of the human influence on hydrological drought based on limited data. We suggest adding to those methods a "paired-catchment" approach, based on the classic hydrology approach that was developed in the 1920s for assessing the impact of land cover treatment on water quantity and quality. When applying the paired-catchment approach to long-term pre-existing human influences trying to detect an influence on extreme events such as droughts, a good catchment selection is crucial. The disturbed catchment needs to be paired with a catchment that is similar in all aspects except for the human activity under study, in that way isolating the effect of that specific activity. In this paper, we present a framework for selecting suitable paired catchments for the study of the human influence on hydrological drought. Essential elements in this framework are the availability of qualitative information on the human activity under study (type, timing, and magnitude), and the similarity of climate, geology, and other human influences between the catchments. We show the application of the framework on two contrasting case studies, one impacted by groundwater abstraction and one with a water transfer from another region. Applying the paired-catchment approach showed how the groundwater abstraction aggravated streamflow drought by more than 200% for some metrics (total drought duration and total drought deficit) and the water transfer alleviated droughts with 25% to 80%, dependent on the metric. Benefits of the paired-catchment approach are that climate variability between pre-and post-disturbance periods does not have to be considered as the same time periods are used for analysis, and that it avoids assumptions considered when partly or fully relying on simulation modelling. Limitations of the approach are that finding a suitable catchment pair can be very challenging, often no pre-disturbance records are available to establish the natural difference between the catchments, and long time series of hydrological data are needed to robustly detect the effect of the human activities on hydrological drought. We suggest that the approach can be used for a first estimate of the human influence on hydrological drought, to steer campaigns to collect more data, and to complement and improve other existing methods (e.g. model-based or large-sample approaches). © 2019 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163004
Appears in Collections: 气候变化与战略
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作者单位: Van Loon, A.F., School of Geography Earth and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom; Rangecroft, S., School of Geography Earth and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom; Coxon, G., School of Geographical Sciences, University of Bristol, Bristol, United Kingdom; Naranjo, J.A.B., Institute of Engineering, Universidad Nacional Autónoma de México, Mexico City, Mexico; Van Ogtrop, F., School of Life and Environmental Sciences, University of Sydney, Sydney, Australia; Van Lanen, H.A.J., Hydrology and Quantitative Water Management Group, Wageningen University, Wageningen, Netherlands
Recommended Citation:
Van Loon A.F.,Rangecroft S.,Coxon G.,et al. Using paired catchments to quantify the human influence on hydrological droughts[J]. Hydrology and Earth System Sciences,2019-01-01,23(3)