Challenges and Opportunities With On-Farm Research: Total and Soluble Reactive Stream Phosphorus Before and After Implementation of a Cattle-Exclusion, Riparian Buffer

Many nutrient mitigation best management practices (BMP) are promoted by state and federal agencies to protect water quality from animal agriculture. The measured effectiveness of these is highly variable in the research literature. Here, we establish pre- and post-BMP monitoring to evaluate the eff...

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Main Authors: Christine B. Georgakakos, Chelsea K. Morris, M. Todd Walter
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-07-01
Series:Frontiers in Environmental Science
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fenvs.2018.00071/full
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author Christine B. Georgakakos
Chelsea K. Morris
M. Todd Walter
author_facet Christine B. Georgakakos
Chelsea K. Morris
M. Todd Walter
author_sort Christine B. Georgakakos
collection DOAJ
description Many nutrient mitigation best management practices (BMP) are promoted by state and federal agencies to protect water quality from animal agriculture. The measured effectiveness of these is highly variable in the research literature. Here, we establish pre- and post-BMP monitoring to evaluate the effectiveness of fencing out cattle from the riparian zone on water quality, specifically, phosphorus (P) loads and concentrations. We collected water samples year-round both before and after a cattle exclusion was established at a small mixed dairy and beef cattle pasture where cattle have historically grazed with unrestricted access to first and second order streams, and analyzed for soluble reactive and total P. Immediately after fence construction, we observed a significant reduction in total P in the stream but not in soluble reactive P. We also observed the development of new runoff source areas and short-circuiting of the riparian buffer as well as repeated presence of cows in the fenced-out area, all of which may diminish the potential effectiveness of this practice. Because BMPs will perform uniquely given climate and landscape position and how managers maintain them, we suggest the need for more nuanced guidance for future BMP designs to ensure successful outcomes.
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spelling doaj.art-f44aa735f8d34232a1dc93723cec8d882022-12-22T00:41:24ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2018-07-01610.3389/fenvs.2018.00071382368Challenges and Opportunities With On-Farm Research: Total and Soluble Reactive Stream Phosphorus Before and After Implementation of a Cattle-Exclusion, Riparian BufferChristine B. GeorgakakosChelsea K. MorrisM. Todd WalterMany nutrient mitigation best management practices (BMP) are promoted by state and federal agencies to protect water quality from animal agriculture. The measured effectiveness of these is highly variable in the research literature. Here, we establish pre- and post-BMP monitoring to evaluate the effectiveness of fencing out cattle from the riparian zone on water quality, specifically, phosphorus (P) loads and concentrations. We collected water samples year-round both before and after a cattle exclusion was established at a small mixed dairy and beef cattle pasture where cattle have historically grazed with unrestricted access to first and second order streams, and analyzed for soluble reactive and total P. Immediately after fence construction, we observed a significant reduction in total P in the stream but not in soluble reactive P. We also observed the development of new runoff source areas and short-circuiting of the riparian buffer as well as repeated presence of cows in the fenced-out area, all of which may diminish the potential effectiveness of this practice. Because BMPs will perform uniquely given climate and landscape position and how managers maintain them, we suggest the need for more nuanced guidance for future BMP designs to ensure successful outcomes.https://www.frontiersin.org/article/10.3389/fenvs.2018.00071/fulltotal phosphorussoluble reactive phosphorustotal suspended solidsriparian buffercattle exclusionbest management practice
spellingShingle Christine B. Georgakakos
Chelsea K. Morris
M. Todd Walter
Challenges and Opportunities With On-Farm Research: Total and Soluble Reactive Stream Phosphorus Before and After Implementation of a Cattle-Exclusion, Riparian Buffer
Frontiers in Environmental Science
total phosphorus
soluble reactive phosphorus
total suspended solids
riparian buffer
cattle exclusion
best management practice
title Challenges and Opportunities With On-Farm Research: Total and Soluble Reactive Stream Phosphorus Before and After Implementation of a Cattle-Exclusion, Riparian Buffer
title_full Challenges and Opportunities With On-Farm Research: Total and Soluble Reactive Stream Phosphorus Before and After Implementation of a Cattle-Exclusion, Riparian Buffer
title_fullStr Challenges and Opportunities With On-Farm Research: Total and Soluble Reactive Stream Phosphorus Before and After Implementation of a Cattle-Exclusion, Riparian Buffer
title_full_unstemmed Challenges and Opportunities With On-Farm Research: Total and Soluble Reactive Stream Phosphorus Before and After Implementation of a Cattle-Exclusion, Riparian Buffer
title_short Challenges and Opportunities With On-Farm Research: Total and Soluble Reactive Stream Phosphorus Before and After Implementation of a Cattle-Exclusion, Riparian Buffer
title_sort challenges and opportunities with on farm research total and soluble reactive stream phosphorus before and after implementation of a cattle exclusion riparian buffer
topic total phosphorus
soluble reactive phosphorus
total suspended solids
riparian buffer
cattle exclusion
best management practice
url https://www.frontiersin.org/article/10.3389/fenvs.2018.00071/full
work_keys_str_mv AT christinebgeorgakakos challengesandopportunitieswithonfarmresearchtotalandsolublereactivestreamphosphorusbeforeandafterimplementationofacattleexclusionriparianbuffer
AT chelseakmorris challengesandopportunitieswithonfarmresearchtotalandsolublereactivestreamphosphorusbeforeandafterimplementationofacattleexclusionriparianbuffer
AT mtoddwalter challengesandopportunitieswithonfarmresearchtotalandsolublereactivestreamphosphorusbeforeandafterimplementationofacattleexclusionriparianbuffer