scholarly journals Groundwater Recharge to Support Wildlife and Water Users

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Anita Milman ◽  
Kirsten Bylo ◽  
Allison Gage ◽  
William Blomquist

The Heyborne Ponds Recharge Project is a multibenefit project that simultaneously seeks to promote wildlife conservation, to address threatened and endangered species recovery, to support recreation, and to facilitate water availability for agriculture. The project delivers water from the South Platte River to recharge ponds to provide habitat for migrating birds while concurrently providing a mechanism for water to infiltrate into the alluvial aquifer and return to the river at a later time. This temporal shift in the timing of flows in the river provides several benefits. Under Colorado law, groundwater users can pump out of priority only if they augment surface water flows. Further, Colorado has interstate commitments to augmenting downstream flows in the Platte River. Multiple-benefit projects such as Heyborne Ponds represent an untapped opportunity for diverse interests to work together in implementing managed aquifer recharge.

2012 ◽  
Vol 78 (19) ◽  
pp. 6819-6828 ◽  
Author(s):  
Dong Li ◽  
Jonathan O. Sharp ◽  
Pascal E. Saikaly ◽  
Shahjahan Ali ◽  
Mazahirali Alidina ◽  
...  

ABSTRACTThis study explores microbial community structure in managed aquifer recharge (MAR) systems across both laboratory and field scales. Two field sites, the Taif River (Taif, Saudi Arabia) and South Platte River (Colorado), were selected as geographically distinct MAR systems. Samples derived from unsaturated riverbed, saturated-shallow-infiltration (depth, 1 to 2 cm), and intermediate-infiltration (depth, 10 to 50 cm) zones were collected. Complementary laboratory-scale sediment columns representing low (0.6 mg/liter) and moderate (5 mg/liter) dissolved organic carbon (DOC) concentrations were used to further query the influence of DOC and depth on microbial assemblages. Microbial density was positively correlated with the DOC concentration, while diversity was negatively correlated at both the laboratory and field scales. Microbial communities derived from analogous sampling zones in each river were not phylogenetically significantly different on phylum, class, genus, and species levels, as determined by 16S rRNA gene pyrosequencing, suggesting that geography and season exerted less sway than aqueous geochemical properties. When field-scale communities derived from the Taif and South Platte River sediments were grouped together, principal coordinate analysis revealed distinct clusters with regard to the three sample zones (unsaturated, shallow, and intermediate saturated) and, further, with respect to DOC concentration. An analogous trend as a function of depth and corresponding DOC loss was observed in column studies. Canonical correspondence analysis suggests that microbial classesBetaproteobacteriaandGammaproteobacteriaare positively correlated with DOC concentration. Our combined analyses at both the laboratory and field scales suggest that DOC may exert a strong influence on microbial community composition and diversity in MAR saturated zones.


2018 ◽  
Vol 2018 (9) ◽  
pp. 4639-4645
Author(s):  
Troy Walker ◽  
Andrew Newbold ◽  
Lauren Zuravnsky ◽  
Charles Bott ◽  
Germano Salazar-Benites ◽  
...  

2018 ◽  
Vol 2018 (9) ◽  
pp. 4635-4638
Author(s):  
Tyler Nading ◽  
Larry Schimmoller ◽  
Germano Salazar-Benites ◽  
Charles Bott ◽  
Jamie Mitchell ◽  
...  

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