Tessa Farthing, Eileen Rintsch, Owen Larson, Bartosz P. Grudzinski, Thomas J. Fisher, Jessica L. McCarty
{"title":"州立森林公园对美国中西部以农业为主的流域中溪流营养物质浓度的影响","authors":"Tessa Farthing, Eileen Rintsch, Owen Larson, Bartosz P. Grudzinski, Thomas J. Fisher, Jessica L. McCarty","doi":"10.1111/1752-1688.13207","DOIUrl":null,"url":null,"abstract":"<p>Agricultural land cover in the U.S. Midwest is a major source of nutrient pollution that has led to impairment of stream water quality. This study examines the impact of a forested state park on nutrient concentrations within an agriculturally dominated watershed. Water samples were collected over a 2-year study period from eight stream sampling sites along four creeks and processed for total nitrogen (TN), nitrate (<span></span><math>\n \n <semantics>\n \n <mrow>\n \n <msubsup>\n \n <mi>NO</mi>\n \n <mn>3</mn>\n \n <mo>−</mo>\n </msubsup>\n \n <mo>-</mo>\n \n <mi>N</mi>\n </mrow>\n </semantics>\n </math>), total phosphorus (TP), and orthophosphate (<span></span><math>\n \n <semantics>\n \n <mrow>\n \n <msubsup>\n \n <mi>PO</mi>\n \n <mn>4</mn>\n \n <mrow>\n \n <mn>3</mn>\n \n <mo>−</mo>\n </mrow>\n </msubsup>\n \n <mo>-</mo>\n \n <mi>P</mi>\n </mrow>\n </semantics>\n </math>). Hydrology, channel morphology, and remotely sensed land cover and vegetation data were also collected and analyzed within the study area. Results indicate that water quality responses to a forested state park vary between TN, <span></span><math>\n \n <semantics>\n \n <mrow>\n \n <msubsup>\n \n <mi>NO</mi>\n \n <mn>3</mn>\n \n <mo>−</mo>\n </msubsup>\n \n <mo>-</mo>\n \n <mi>N</mi>\n </mrow>\n </semantics>\n </math>, TP, and <span></span><math>\n \n <semantics>\n \n <mrow>\n \n <msubsup>\n \n <mi>PO</mi>\n \n <mn>4</mn>\n \n <mrow>\n \n <mn>3</mn>\n \n <mo>−</mo>\n </mrow>\n </msubsup>\n \n <mo>-</mo>\n \n <mi>P</mi>\n </mrow>\n </semantics>\n </math>, and water quality variables are uniquely influenced by watershed and stream characteristics. The greatest water quality benefits most frequently occurred within the two smallest study streams with the greatest residence times and proportion of watershed areas within the forested state park. Overall, the greatest improvements to water quality occurred during periods of low stream discharge and when riparian vegetation was greenest. The results of this study suggest that conservation of forested areas within agriculturally dominated watersheds can provide water quality improvements in the U.S. Midwest. Targeting watersheds that drain small streams with long residence times for conservation may be most beneficial to improving water quality.</p>","PeriodicalId":17234,"journal":{"name":"Journal of The American Water Resources Association","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1752-1688.13207","citationCount":"0","resultStr":"{\"title\":\"Effects of a forested state park on stream nutrient concentrations in an agriculturally dominated watershed in the U.S. Midwest\",\"authors\":\"Tessa Farthing, Eileen Rintsch, Owen Larson, Bartosz P. Grudzinski, Thomas J. Fisher, Jessica L. McCarty\",\"doi\":\"10.1111/1752-1688.13207\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Agricultural land cover in the U.S. Midwest is a major source of nutrient pollution that has led to impairment of stream water quality. This study examines the impact of a forested state park on nutrient concentrations within an agriculturally dominated watershed. Water samples were collected over a 2-year study period from eight stream sampling sites along four creeks and processed for total nitrogen (TN), nitrate (<span></span><math>\\n \\n <semantics>\\n \\n <mrow>\\n \\n <msubsup>\\n \\n <mi>NO</mi>\\n \\n <mn>3</mn>\\n \\n <mo>−</mo>\\n </msubsup>\\n \\n <mo>-</mo>\\n \\n <mi>N</mi>\\n </mrow>\\n </semantics>\\n </math>), total phosphorus (TP), and orthophosphate (<span></span><math>\\n \\n <semantics>\\n \\n <mrow>\\n \\n <msubsup>\\n \\n <mi>PO</mi>\\n \\n <mn>4</mn>\\n \\n <mrow>\\n \\n <mn>3</mn>\\n \\n <mo>−</mo>\\n </mrow>\\n </msubsup>\\n \\n <mo>-</mo>\\n \\n <mi>P</mi>\\n </mrow>\\n </semantics>\\n </math>). Hydrology, channel morphology, and remotely sensed land cover and vegetation data were also collected and analyzed within the study area. Results indicate that water quality responses to a forested state park vary between TN, <span></span><math>\\n \\n <semantics>\\n \\n <mrow>\\n \\n <msubsup>\\n \\n <mi>NO</mi>\\n \\n <mn>3</mn>\\n \\n <mo>−</mo>\\n </msubsup>\\n \\n <mo>-</mo>\\n \\n <mi>N</mi>\\n </mrow>\\n </semantics>\\n </math>, TP, and <span></span><math>\\n \\n <semantics>\\n \\n <mrow>\\n \\n <msubsup>\\n \\n <mi>PO</mi>\\n \\n <mn>4</mn>\\n \\n <mrow>\\n \\n <mn>3</mn>\\n \\n <mo>−</mo>\\n </mrow>\\n </msubsup>\\n \\n <mo>-</mo>\\n \\n <mi>P</mi>\\n </mrow>\\n </semantics>\\n </math>, and water quality variables are uniquely influenced by watershed and stream characteristics. The greatest water quality benefits most frequently occurred within the two smallest study streams with the greatest residence times and proportion of watershed areas within the forested state park. Overall, the greatest improvements to water quality occurred during periods of low stream discharge and when riparian vegetation was greenest. The results of this study suggest that conservation of forested areas within agriculturally dominated watersheds can provide water quality improvements in the U.S. Midwest. Targeting watersheds that drain small streams with long residence times for conservation may be most beneficial to improving water quality.</p>\",\"PeriodicalId\":17234,\"journal\":{\"name\":\"Journal of The American Water Resources Association\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2024-05-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1752-1688.13207\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The American Water Resources Association\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/1752-1688.13207\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The American Water Resources Association","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/1752-1688.13207","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Effects of a forested state park on stream nutrient concentrations in an agriculturally dominated watershed in the U.S. Midwest
Agricultural land cover in the U.S. Midwest is a major source of nutrient pollution that has led to impairment of stream water quality. This study examines the impact of a forested state park on nutrient concentrations within an agriculturally dominated watershed. Water samples were collected over a 2-year study period from eight stream sampling sites along four creeks and processed for total nitrogen (TN), nitrate (), total phosphorus (TP), and orthophosphate (). Hydrology, channel morphology, and remotely sensed land cover and vegetation data were also collected and analyzed within the study area. Results indicate that water quality responses to a forested state park vary between TN, , TP, and , and water quality variables are uniquely influenced by watershed and stream characteristics. The greatest water quality benefits most frequently occurred within the two smallest study streams with the greatest residence times and proportion of watershed areas within the forested state park. Overall, the greatest improvements to water quality occurred during periods of low stream discharge and when riparian vegetation was greenest. The results of this study suggest that conservation of forested areas within agriculturally dominated watersheds can provide water quality improvements in the U.S. Midwest. Targeting watersheds that drain small streams with long residence times for conservation may be most beneficial to improving water quality.
期刊介绍:
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