Treating causes not symptoms: restoration of surface-groundwater interactions in rivers

被引:45
作者
Kasahara, Tamao [1 ]
Datry, Thibault [2 ]
Mutz, Michael [3 ]
Boulton, Andrew J. [4 ]
机构
[1] Utah State Univ, Dept Watershed Sci, Logan, UT 84321 USA
[2] Irstea, UR BELY, F-69336 Lyon 09, France
[3] Brandenburg Tech Univ Cottbus, Dept Freshwater Conservat, D-15526 Bad Saarow Pieskow, Germany
[4] Univ New England, Armidale, NSW 2351, Australia
关键词
conservation; groundwater; hydrological exchange; hyporheic zone; river health; river restoration; sediment structure; SUBSURFACE WATER EXCHANGE; HYPORHEIC ZONE; LOW-ENERGY; STREAM; MODEL; ASSEMBLAGES; TRANSPORT; QUALITY; SYSTEM; DEBRIS;
D O I
10.1071/MF09047
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Many river restoration projects seek to address issues associated with impaired hydrological and ecological connectivity in longitudinal (e. g. effects of dams, weirs) or lateral (e. g. alienated floodplain) dimensions. Efforts to restore the vertical dimension of impaired stream-groundwater exchange are rare, hampered by limited understanding of the factors controlling this linkage in natural alluvial rivers. We propose a simplified two-axis model of the 'primary drivers' (sediment structure and vertical hydraulic gradient) of stream-groundwater exchange that acknowledges their interaction and provides a practical template to help researchers and river managers pose hypothesis-driven solutions to restoration of damaged or lost vertical connectivity. Many human activities impact on one or both of these drivers, and we review some of the tools available for treating the causes (rather than symptoms) in impacted stream reaches. For example, creating riffle-pool sequences along stream reaches will enhance vertical hydraulic gradient, whereas flushing flows can remove clogging layers and sustain sediment permeability. Our model is a first step to specifying mechanisms for recovery of lost vertical connectivity. Assessing results of river restoration using this approach at reach to catchment scales will provide scientific insights into the interplay of hydrology, fluvial geomorphology and river ecosystem function at appropriately broad scales.
引用
收藏
页码:976 / 981
页数:6
相关论文
共 56 条
[1]   Clogging processes in hyporheic interstices of an impounded river, the Danube at Vienna, Austria [J].
Blaschke, AP ;
Steiner, KH ;
Schmalfuss, R ;
Gutknecht, D ;
Sengschmitt, D .
INTERNATIONAL REVIEW OF HYDROBIOLOGY, 2003, 88 (3-4) :397-413
[2]   The functional significance of the hyporheic zone in streams and rivers [J].
Boulton, AJ ;
Findlay, S ;
Marmonier, P ;
Stanley, EH ;
Valett, HM .
ANNUAL REVIEW OF ECOLOGY AND SYSTEMATICS, 1998, 29 :59-81
[3]   Biodiversity, functional roles and ecosystem services of groundwater invertebrates [J].
Boulton, Andrew J. ;
Fenwick, Graham D. ;
Hancock, Peter J. ;
Harvey, Mark S. .
INVERTEBRATE SYSTEMATICS, 2008, 22 (02) :103-116
[4]   Hyporheic rehabilitation in rivers: restoring vertical connectivity [J].
Boulton, Andrew J. .
FRESHWATER BIOLOGY, 2007, 52 (04) :632-650
[5]  
Brune K., 1997, Acute Pain, V1, P33, DOI 10.1016/S1366-0071(97)80033-2
[6]   Influences of the stream groundwater hydrology on nitrate concentration in unsaturated riparian area bounded by an intermittent Mediterranean stream [J].
Butturini, A ;
Bernal, S ;
Nin, E ;
Hellin, C ;
Rivero, L ;
Sabater, S ;
Sabater, F .
WATER RESOURCES RESEARCH, 2003, 39 (04) :SBH121-SBH1213
[7]  
CHATELLIERS MCD, 1991, INT VER THEOR ANGEW, V24, P1609
[8]   Responses of hyporheic invertebrate assemblages to large-scale variation in flow permanence and surface-subsurface exchange [J].
Datry, Thibault ;
Larned, Scott T. ;
Scarsbrook, Mike R. .
FRESHWATER BIOLOGY, 2007, 52 (08) :1452-1462
[9]   Influence of benthic and interstitial processes on nutrient changes along a regulated reach of a large river (Rhone River, France) [J].
Fauvet, G ;
Claret, C ;
Marmonier, P .
HYDROBIOLOGIA, 2001, 445 (1-3) :121-131
[10]   Reactive uptake of trace metals in the hyporheic zone of a mining-contaminated stream, Pinal Creek, Arizona [J].
Fuller, CC ;
Harvey, JW .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2000, 34 (07) :1150-1155