Reconnecting Tile Drainage to Riparian Buffer Hydrology for Enhanced Nitrate Removal
نویسندگان
چکیده
منابع مشابه
Reconnecting tile drainage to riparian buffer hydrology for enhanced nitrate removal.
Riparian buffers are a proven practice for removing NO from overland flow and shallow groundwater. However, in landscapes with artificial subsurface (tile) drainage, most of the subsurface flow leaving fields is passed through the buffers in drainage pipes, leaving little opportunity for NO removal. We investigated the feasibility of re-routing a fraction of field tile drainage as subsurface fl...
متن کاملGround Water Nitrate Removal in Subsoil of Forested and Mowed Riparian Buffer Zones
We studied two similar riparian sites in southern New England and examined ground water nitrate (NO~--N) removal in the subsurface of mowed (i.e., herbaceous) v . forested (i.e., woody) vegetation. Each site consisted of poorly drained, fine to medium sands and contained adjacent areas of mowed and forested vegetation. We dosed mesocosms with bromide and lSN labeled NO~-N amended ground water t...
متن کاملGroundwater nitrate following installation of a vegetated riparian buffer.
Substantial questions remain about the time required for groundwater nitrate to be reduced below 10 mg L(-1) following establishment of vegetated riparian buffers. The objective of this study was to document changes in groundwater nitrate-nitrogen (NO3-N) concentrations that occurred within a few years of planting a riparian buffer. In 2000 and 2001 a buffer was planted adjacent to a first-orde...
متن کاملNitrate in tile drainage of the semiarid Palouse Basin.
Topographically heterogeneous agricultural landscapes can complicate and accelerate agrochemical contamination of streams due to rapid transport of water and chemicals to poorly drained lower-landscape positions and shallow ground water. In the semiarid Palouse region, large parts of these landscapes have been tile drained to enhance crop yield. From 2000-2004 we monitored the discharge of a ti...
متن کاملPatchiness in Groundwater Nitrate Removal in a Riparian Forest
Our ability to identify and manage riparian sites for groundwater nitrate (NOAh) removal is limited by uncertainty surrounding the relative importance of plant uptake vs. microbially mediated removal processes. Microcosm studies often demonstrate negligible transformation rates in the subsoil of riparian forests, even in situations where groundwater well networks showed substantial groundwater ...
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ژورنال
عنوان ژورنال: Journal of Environmental Quality
سال: 2014
ISSN: 0047-2425
DOI: 10.2134/jeq2013.08.0331