Effects of agricultural conservation practices on oxbow lake watersheds in the Mississippi River alluvial plain
Agricultural lands are considered to be a major source of nonpoint source pollutants such as sediment, pesticides and nutrients in the United States. Conservation practices have been tested for their effectiveness in reducing agricultural related pollutants on smaller scales, but farm watershed scal...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2013-09-01
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| Series: | Soil and Water Research |
| Subjects: | |
| Online Access: | https://swr.agriculturejournals.cz/artkey/swr-201303-0003_effects-of-agricultural-conservation-practices-on-oxbow-lake-watersheds-in-the-mississippi-river-alluvial-plain.php |
| _version_ | 1797897842115739648 |
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| author | Scott Stephen KNIGHT Martin Anderson LOCKE Sammie SMITH |
| author_facet | Scott Stephen KNIGHT Martin Anderson LOCKE Sammie SMITH |
| author_sort | Scott Stephen KNIGHT |
| collection | DOAJ |
| description | Agricultural lands are considered to be a major source of nonpoint source pollutants such as sediment, pesticides and nutrients in the United States. Conservation practices have been tested for their effectiveness in reducing agricultural related pollutants on smaller scales, but farm watershed scale assessments of these practices are limited and few of these have evaluated the impacts on downstream ecology. Several projects focused on oxbow lake watersheds in the Mississippi River alluvial plain were designed to utilize working farms to evaluate primary pollutants in water resources and to identify conservation practices that are most effective in reducing the transport of those pollutants in surface and ground water on a watershed scale. Major findings of these studies include: (1) conservation practices reduced sediment in oxbow lakes, resulting in improved water clarity, plankton growth, and fish stocks; (2) total phosphorus in lakes decreased between 39-50% following application of conservation practices; (3) conservation tillage and cover crops reduced NO3-N losses by 73%, sediment losses by 70; and (4) riparian areas mitigated the transport of sediment in runoff and enhanced the degradation of pesticides. |
| first_indexed | 2024-04-10T08:03:40Z |
| format | Article |
| id | doaj.art-05c2c43213c2444db6ea4168c32a67e3 |
| institution | Directory Open Access Journal |
| issn | 1801-5395 1805-9384 |
| language | English |
| last_indexed | 2024-04-10T08:03:40Z |
| publishDate | 2013-09-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Soil and Water Research |
| spelling | doaj.art-05c2c43213c2444db6ea4168c32a67e32023-02-23T03:48:22ZengCzech Academy of Agricultural SciencesSoil and Water Research1801-53951805-93842013-09-018311312310.17221/45/2012-SWRswr-201303-0003Effects of agricultural conservation practices on oxbow lake watersheds in the Mississippi River alluvial plainScott Stephen KNIGHT0Martin Anderson LOCKE1Sammie SMITH2National Sedimentation Laboratory, USDA-ARS, Oxford, USANational Sedimentation Laboratory, USDA-ARS, Oxford, USANational Sedimentation Laboratory, USDA-ARS, Oxford, USAAgricultural lands are considered to be a major source of nonpoint source pollutants such as sediment, pesticides and nutrients in the United States. Conservation practices have been tested for their effectiveness in reducing agricultural related pollutants on smaller scales, but farm watershed scale assessments of these practices are limited and few of these have evaluated the impacts on downstream ecology. Several projects focused on oxbow lake watersheds in the Mississippi River alluvial plain were designed to utilize working farms to evaluate primary pollutants in water resources and to identify conservation practices that are most effective in reducing the transport of those pollutants in surface and ground water on a watershed scale. Major findings of these studies include: (1) conservation practices reduced sediment in oxbow lakes, resulting in improved water clarity, plankton growth, and fish stocks; (2) total phosphorus in lakes decreased between 39-50% following application of conservation practices; (3) conservation tillage and cover crops reduced NO3-N losses by 73%, sediment losses by 70; and (4) riparian areas mitigated the transport of sediment in runoff and enhanced the degradation of pesticides.https://swr.agriculturejournals.cz/artkey/swr-201303-0003_effects-of-agricultural-conservation-practices-on-oxbow-lake-watersheds-in-the-mississippi-river-alluvial-plain.phplimnologymanagement systems evaluation areanutrientspesticidessedimentwater quality |
| spellingShingle | Scott Stephen KNIGHT Martin Anderson LOCKE Sammie SMITH Effects of agricultural conservation practices on oxbow lake watersheds in the Mississippi River alluvial plain Soil and Water Research limnology management systems evaluation area nutrients pesticides sediment water quality |
| title | Effects of agricultural conservation practices on oxbow lake watersheds in the Mississippi River alluvial plain |
| title_full | Effects of agricultural conservation practices on oxbow lake watersheds in the Mississippi River alluvial plain |
| title_fullStr | Effects of agricultural conservation practices on oxbow lake watersheds in the Mississippi River alluvial plain |
| title_full_unstemmed | Effects of agricultural conservation practices on oxbow lake watersheds in the Mississippi River alluvial plain |
| title_short | Effects of agricultural conservation practices on oxbow lake watersheds in the Mississippi River alluvial plain |
| title_sort | effects of agricultural conservation practices on oxbow lake watersheds in the mississippi river alluvial plain |
| topic | limnology management systems evaluation area nutrients pesticides sediment water quality |
| url | https://swr.agriculturejournals.cz/artkey/swr-201303-0003_effects-of-agricultural-conservation-practices-on-oxbow-lake-watersheds-in-the-mississippi-river-alluvial-plain.php |
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