Advancing our predictive understanding of river corridor exchange

被引:54
|
作者
Ward, Adam S. [1 ]
Packman, Aaron I. [2 ]
机构
[1] Indiana Univ, Sch Publ & Environm Affairs, Bloomington, IN 47405 USA
[2] Northwestern Univ, Civil & Environm Engn Dept, Evanston, IL USA
来源
WILEY INTERDISCIPLINARY REVIEWS-WATER | 2019年 / 6卷 / 01期
基金
欧盟地平线“2020”; 美国国家科学基金会;
关键词
hyporheic; river corridor; river network; SEDIMENT-WATER INTERFACE; ACCESSIBLE DATA RESOURCE; QUALITY TIME-SERIES; HYPORHEIC EXCHANGE; TRANSIENT-STORAGE; SOLUTE TRANSPORT; GROUNDWATER-FLOW; MOUNTAIN STREAM; SEASONAL-VARIATION; MASS-TRANSFER;
D O I
10.1002/wat2.1327
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Despite decades of research, we lack an accurate framework to predict and manage hydrologic exchange in the river corridor and the associated ecosystem services and functions at the scales of stream reaches and entire networks. While many individual studies have been conducted to investigate specific mechanisms, they have not been synthesized to account for heterogeneity in space, nonstationarity, and multiscale feedbacks that typify the river corridor. As a result, contradictory predictions of exchange flux, geometry, and timescale are prevalent in the literature. We attribute these contradictions to (a) failure to account for multiscale feedbacks and (b) uncertainty in the information content of common measurement methods. Here, we apply the concept of interacting multiscale spatial and time-variable domains to the river corridor to demonstrate why more complete multiscale characterization is necessary to achieve predictive understanding. Next, we highlight uncertainties and inconsistencies in measurement methods which may obfuscate our understanding of river corridor exchange. Finally, we briefly outline four necessary advances to achieve predictive understanding of river corridor exchange: standardization of metadata, critical evaluation of the information content and support volumes for measurement techniques, multiscale model-data integration, and advancing theoretical models of river corridor exchange. This article is categorized under: Science of Water > Hydrological Processes Water and Life > Nature of Freshwater Ecosystems Science of Water > Methods
引用
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页数:17
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