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Volumn 42, Issue , 2012, Pages 212-222

Using modeled runoff to study DOC dynamics in stream and river flow: A case study of an urban watershed southeast of Boston, Massachusetts

Author keywords

Land use; SWAT; Terrestrial DOC export; Upland ecosystem; Urban watersheds; Watershed modeling

Indexed keywords

AQUATIC ECOSYSTEM; BOSTON ,MASSACHUSETTS; DISSOLVED ORGANIC CARBON; DOC EXPORT; DRAINAGE AREA; ENVIRONMENTAL FACTORS; HUMAN ACTIVITIES; HYDROLOGICAL DATA; HYDROLOGICAL MODELS; LAND-COVER TYPES; LARGE WATERSHEDS; RIVER FLOW; SCALING-UP; SOIL WATER ASSESSMENT TOOL; SPATIAL AND TEMPORAL VARIATION; SWAT; TERRESTRIAL ECOSYSTEMS; URBAN WATERSHED; VEGETATION DENSITY; WATERSHED MODELING;

EID: 84862829159     PISSN: 09258574     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ecoleng.2012.01.017     Document Type: Article
Times cited : (17)

References (53)
  • 1
    • 34548695343 scopus 로고    scopus 로고
    • Importance of seasonality and small streams for the landscape regulation of dissolved organic carbon export
    • Agren A., Buffam I., Jansson M., Laudon H. Importance of seasonality and small streams for the landscape regulation of dissolved organic carbon export. Journal of Geophysical Research-Biogeosciences 2007, 112(G3):11.
    • (2007) Journal of Geophysical Research-Biogeosciences , vol.112 , Issue.G3 , pp. 11
    • Agren, A.1    Buffam, I.2    Jansson, M.3    Laudon, H.4
  • 2
    • 57449107621 scopus 로고    scopus 로고
    • Hydrologic calibration and validation of SWAT in a snow-dominated rocky mountain watershed, Montana, USA
    • Ahl R.S., Woods S.W., Zuuring H.R. Hydrologic calibration and validation of SWAT in a snow-dominated rocky mountain watershed, Montana, USA. Journal of the American Water Resources Association 2008, 44:1411-1430.
    • (2008) Journal of the American Water Resources Association , vol.44 , pp. 1411-1430
    • Ahl, R.S.1    Woods, S.W.2    Zuuring, H.R.3
  • 3
    • 0030619288 scopus 로고    scopus 로고
    • The influence of watershed land use on stream integrity across multiple spatial scales
    • Allan J.D., Erickson D.L., Fay J. The influence of watershed land use on stream integrity across multiple spatial scales. Freshwater Biology 1997, 37(1):149-161.
    • (1997) Freshwater Biology , vol.37 , Issue.1 , pp. 149-161
    • Allan, J.D.1    Erickson, D.L.2    Fay, J.3
  • 5
    • 14244253011 scopus 로고    scopus 로고
    • SWAT2000: current capabilities and research opportunities in applied watershed modelling
    • Arnold J.G., Fohrer N. SWAT2000: current capabilities and research opportunities in applied watershed modelling. Hydrological Processes 2005, 19(3):563-572.
    • (2005) Hydrological Processes , vol.19 , Issue.3 , pp. 563-572
    • Arnold, J.G.1    Fohrer, N.2
  • 6
    • 24944508301 scopus 로고    scopus 로고
    • Calibration and validation of soil and water assessment tool on an agricultural watershed in upstate New York
    • Benaman J., Shoemaker C.A., Haith D.A. Calibration and validation of soil and water assessment tool on an agricultural watershed in upstate New York. Journal of Hydrologic Engineering 2005, 10(5):363-374. 10.1061/(ASCE)1084-0699(2005)10:5(363).
    • (2005) Journal of Hydrologic Engineering , vol.10 , Issue.5 , pp. 363-374
    • Benaman, J.1    Shoemaker, C.A.2    Haith, D.A.3
  • 7
    • 0001440342 scopus 로고
    • Natural organic-matter and metal-organic interactions in aquatic systems
    • Buffle J. Natural organic-matter and metal-organic interactions in aquatic systems. Metal Ions in Biological Systems 1984, 18:165-221.
    • (1984) Metal Ions in Biological Systems , vol.18 , pp. 165-221
    • Buffle, J.1
  • 9
    • 3342941002 scopus 로고    scopus 로고
    • The influence of watershed characteristics on the seasonality of carbon and nitrogen species concentrations in upland rivers of Northern Scotland
    • Clark M.J., Cresser M.S., Smart R., Chapman P.J., Edwards A.C. The influence of watershed characteristics on the seasonality of carbon and nitrogen species concentrations in upland rivers of Northern Scotland. Biogeochemistry 2004, 68(1):1-19.
    • (2004) Biogeochemistry , vol.68 , Issue.1 , pp. 1-19
    • Clark, M.J.1    Cresser, M.S.2    Smart, R.3    Chapman, P.J.4    Edwards, A.C.5
  • 10
    • 0032912372 scopus 로고    scopus 로고
    • Influence of land use and hydrology on exports of carbon and nitrogen in a Maine River Basin
    • Cronan C.S., Piampiano J.T., Patterson H.H. Influence of land use and hydrology on exports of carbon and nitrogen in a Maine River Basin. Journal of Environmental Quality 1999, 28(3):953-961.
    • (1999) Journal of Environmental Quality , vol.28 , Issue.3 , pp. 953-961
    • Cronan, C.S.1    Piampiano, J.T.2    Patterson, H.H.3
  • 12
    • 0030668414 scopus 로고    scopus 로고
    • Effect of landscape form on export of dissolved organic carbon, iron, and phosphorus from forested stream watersheds
    • Dillon P.J., Molot L.A. Effect of landscape form on export of dissolved organic carbon, iron, and phosphorus from forested stream watersheds. Water Resources Research 1997, 33(11):2591-2600.
    • (1997) Water Resources Research , vol.33 , Issue.11 , pp. 2591-2600
    • Dillon, P.J.1    Molot, L.A.2
  • 13
    • 0023815377 scopus 로고
    • Effects of acidic deposition on the chemistry of headwater streams: a comparison between Hubbard Brood, New Hampshire, and Jamieson Creek, British Columbia
    • Driscoll C.T., Johnson N.M., Likens G.E., Feller M.C. Effects of acidic deposition on the chemistry of headwater streams: a comparison between Hubbard Brood, New Hampshire, and Jamieson Creek, British Columbia. Water Resources Research 1988, 24(2):195-200.
    • (1988) Water Resources Research , vol.24 , Issue.2 , pp. 195-200
    • Driscoll, C.T.1    Johnson, N.M.2    Likens, G.E.3    Feller, M.C.4
  • 14
    • 27744598601 scopus 로고    scopus 로고
    • 2 emissions from aquatic ecosystems
    • 2 emissions from aquatic ecosystems. Ecosystems 2005, 8(7):862-870.
    • (2005) Ecosystems , vol.8 , Issue.7 , pp. 862-870
    • Duarte, C.M.1    Prairie, Y.T.2
  • 15
    • 41149142596 scopus 로고    scopus 로고
    • Influence of seasonal changes in runoff and extreme events on dissolved organic carbon trends in wetland- and upland-draining streams
    • Eimers M.C., Buttle J., Watmough S.A. Influence of seasonal changes in runoff and extreme events on dissolved organic carbon trends in wetland- and upland-draining streams. Canadian Journal of Fisheries and Aquatic Sciences 2008, 65(5):796-808.
    • (2008) Canadian Journal of Fisheries and Aquatic Sciences , vol.65 , Issue.5 , pp. 796-808
    • Eimers, M.C.1    Buttle, J.2    Watmough, S.A.3
  • 17
    • 62249166502 scopus 로고    scopus 로고
    • The effects of climate change and urbanization on the runoff of the Rock Creek basin in the Portland metropolitan area, Oregon, USA
    • Franczyk J., Chang H.J. The effects of climate change and urbanization on the runoff of the Rock Creek basin in the Portland metropolitan area, Oregon, USA. Hydrological Processes 2009, 23(6):805-815. 10.1002/hyp.7176.
    • (2009) Hydrological Processes , vol.23 , Issue.6 , pp. 805-815
    • Franczyk, J.1    Chang, H.J.2
  • 18
    • 0021645276 scopus 로고
    • Relationships among dissolved organic-matter, iron, and discharge in a moorland stream
    • Grieve I.C. Relationships among dissolved organic-matter, iron, and discharge in a moorland stream. Earth Surface Processes and Landforms 1984, 9(1):35-41.
    • (1984) Earth Surface Processes and Landforms , vol.9 , Issue.1 , pp. 35-41
    • Grieve, I.C.1
  • 19
    • 63649108186 scopus 로고    scopus 로고
    • Estimating fractional cover of photosynthetic vegetation, non-photosynthetic vegetation and bare soil in the Australian tropical savanna region upscaling the EO-1 Hyperion and MODIS sensors
    • Guerschman J.P., Hill M.J., Renzullo L.J., Barrett D.J., Marks A.S., Botha E.J. Estimating fractional cover of photosynthetic vegetation, non-photosynthetic vegetation and bare soil in the Australian tropical savanna region upscaling the EO-1 Hyperion and MODIS sensors. Remote Sensing of Environment 2009, 113(5):928-945.
    • (2009) Remote Sensing of Environment , vol.113 , Issue.5 , pp. 928-945
    • Guerschman, J.P.1    Hill, M.J.2    Renzullo, L.J.3    Barrett, D.J.4    Marks, A.S.5    Botha, E.J.6
  • 20
    • 0031884472 scopus 로고    scopus 로고
    • Sources and flowpaths of dissolved organic carbon during storms in two forested watersheds of the Precambrian Shield
    • Hinton M.J., Schiff S.L., English M.C. Sources and flowpaths of dissolved organic carbon during storms in two forested watersheds of the Precambrian Shield. Biogeochemistry 1998, 41(2):175-197.
    • (1998) Biogeochemistry , vol.41 , Issue.2 , pp. 175-197
    • Hinton, M.J.1    Schiff, S.L.2    English, M.C.3
  • 21
    • 0028182029 scopus 로고
    • A review of the export of carbon in river water-fluxes and processes
    • Hope D., Billett M.F., Cresser M.S. A review of the export of carbon in river water-fluxes and processes. Environmental Pollution 1994, 84(3):301-324.
    • (1994) Environmental Pollution , vol.84 , Issue.3 , pp. 301-324
    • Hope, D.1    Billett, M.F.2    Cresser, M.S.3
  • 22
    • 0028162529 scopus 로고
    • Hydrological controls on dissolved organic-carbon during snowmelt in the Snake River near Montezuma, Colorado
    • Hornberger G.M., Bencala K.E., McKnight D.M. Hydrological controls on dissolved organic-carbon during snowmelt in the Snake River near Montezuma, Colorado. Biogeochemistry 1994, 25(3):147-165.
    • (1994) Biogeochemistry , vol.25 , Issue.3 , pp. 147-165
    • Hornberger, G.M.1    Bencala, K.E.2    McKnight, D.M.3
  • 23
    • 77954225774 scopus 로고    scopus 로고
    • Sources and transformations of chromophoric dissolved organic matter in the Neponset River Watershed
    • G00F05
    • Huang W., Chen R.F. Sources and transformations of chromophoric dissolved organic matter in the Neponset River Watershed. Journal of Geophysical Research-Biogeosciences 2009, 114. G00F05. 10.1029/2009JG000976.
    • (2009) Journal of Geophysical Research-Biogeosciences , vol.114
    • Huang, W.1    Chen, R.F.2
  • 25
    • 33644783143 scopus 로고    scopus 로고
    • Hydrologic and topographic controls on storm-event exports of dissolved organic carbon (DOC) and nitrate across catchment scales
    • Inamdar S.P., Mitchell M.J. Hydrologic and topographic controls on storm-event exports of dissolved organic carbon (DOC) and nitrate across catchment scales. Water Resources Research 2006, 42(3):W03421.
    • (2006) Water Resources Research , vol.42 , Issue.3
    • Inamdar, S.P.1    Mitchell, M.J.2
  • 26
    • 0041782576 scopus 로고    scopus 로고
    • Long-term decline in carbon dioxide supersaturation in rivers across the contiguous United States
    • Jones J.B., Stanley E.H., Mulholland P.J. Long-term decline in carbon dioxide supersaturation in rivers across the contiguous United States. Geophysical Research Letters 2003, 30(10):4.
    • (2003) Geophysical Research Letters , vol.30 , Issue.10 , pp. 4
    • Jones, J.B.1    Stanley, E.H.2    Mulholland, P.J.3
  • 27
    • 0035146506 scopus 로고    scopus 로고
    • Sorption of dissolved organic carbon on soils: effects of soil sample storage, soil-to-solution ratio, and temperature
    • Kaiser K., Kaupenjohanm M., Zech W. Sorption of dissolved organic carbon on soils: effects of soil sample storage, soil-to-solution ratio, and temperature. Geoderma 2001, 99:317-328.
    • (2001) Geoderma , vol.99 , pp. 317-328
    • Kaiser, K.1    Kaupenjohanm, M.2    Zech, W.3
  • 28
    • 0005000307 scopus 로고
    • Permanganate oxidation of humic acids, fulvic acids, and humins extracted from Ah horizons of a Black Chernozem, a Black Solod, and a Black Solonetz soil
    • Khan S.U., Schnitze M. Permanganate oxidation of humic acids, fulvic acids, and humins extracted from Ah horizons of a Black Chernozem, a Black Solod, and a Black Solonetz soil. Canadian Journal of Soil Science 1972, 52(1):43.
    • (1972) Canadian Journal of Soil Science , vol.52 , Issue.1 , pp. 43
    • Khan, S.U.1    Schnitze, M.2
  • 30
    • 54349113140 scopus 로고    scopus 로고
    • Evaluation of streamflow simulation by SWAT model for two small watersheds under snowmelt and rainfall
    • Levesque E., Anctil F., van Griensven A., Beauchamp N. Evaluation of streamflow simulation by SWAT model for two small watersheds under snowmelt and rainfall. Hydrological Sciences Journal 2008, 53(5):961-976.
    • (2008) Hydrological Sciences Journal , vol.53 , Issue.5 , pp. 961-976
    • Levesque, E.1    Anctil, F.2    van Griensven, A.3    Beauchamp, N.4
  • 31
    • 0000469569 scopus 로고
    • Autumnal processing of dissolved organic matter in a small woodland stream ecosystem
    • McDowell W.H., Fisher S.G. Autumnal processing of dissolved organic matter in a small woodland stream ecosystem. Ecology 1976, 57:561-569.
    • (1976) Ecology , vol.57 , pp. 561-569
    • McDowell, W.H.1    Fisher, S.G.2
  • 33
    • 0029663913 scopus 로고    scopus 로고
    • Decreased carbon and nutrient inputs to boreal lakes from particulate organic matter following riparian clear-cutting
    • France R., Culbert H., Peters R. Decreased carbon and nutrient inputs to boreal lakes from particulate organic matter following riparian clear-cutting. Environmental Management 1996, 20:579-583.
    • (1996) Environmental Management , vol.20 , pp. 579-583
    • France, R.1    Culbert, H.2    Peters, R.3
  • 34
    • 0019998653 scopus 로고
    • Carbon, nitrogen, and phosphorus transport by world rivers
    • Meybeck M. Carbon, nitrogen, and phosphorus transport by world rivers. American Journal of Science 1982, 282(4):401-450.
    • (1982) American Journal of Science , vol.282 , Issue.4 , pp. 401-450
    • Meybeck, M.1
  • 35
    • 0031107060 scopus 로고    scopus 로고
    • Carbon in the vegetation and soils of Great Britain
    • Milne R., Brown T.A. Carbon in the vegetation and soils of Great Britain. Journal of Environmental Management 1997, 49(4):413-433.
    • (1997) Journal of Environmental Management , vol.49 , Issue.4 , pp. 413-433
    • Milne, R.1    Brown, T.A.2
  • 37
    • 0014776873 scopus 로고
    • River flow forecasting through conceptual models part I-a discussion of principles
    • Nash J.E., Sutcliffe J.V. River flow forecasting through conceptual models part I-a discussion of principles. Journal of Hydrology 1970, 10(3):282-290.
    • (1970) Journal of Hydrology , vol.10 , Issue.3 , pp. 282-290
    • Nash, J.E.1    Sutcliffe, J.V.2
  • 39
    • 0037648792 scopus 로고    scopus 로고
    • Global warming and the export of dissolved organic carbon from boreal peatlands
    • Pastor J., Solin J., Bridgham S.D., Updegraff K., Harth C., Weishampel P., Dewey B. Global warming and the export of dissolved organic carbon from boreal peatlands. Oikos 2003, 100(2):380-386.
    • (2003) Oikos , vol.100 , Issue.2 , pp. 380-386
    • Pastor, J.1    Solin, J.2    Bridgham, S.D.3    Updegraff, K.4    Harth, C.5    Weishampel, P.6    Dewey, B.7
  • 40
    • 67649400413 scopus 로고    scopus 로고
    • Modeling the effects of riparian buffer zone and contour strips on stream water quality
    • Sahu M., Gu R.R. Modeling the effects of riparian buffer zone and contour strips on stream water quality. Ecological Engineering 2009, 35(8):1167-1177. 10.1016/j.ecoleng.2009.03.015.
    • (2009) Ecological Engineering , vol.35 , Issue.8 , pp. 1167-1177
    • Sahu, M.1    Gu, R.R.2
  • 41
    • 0031720432 scopus 로고    scopus 로고
    • Precambrian shield wetlands: hydrologic control of the sources and export of dissolved organic matter
    • Schiff S., Aravena R., Mewhinney E., Elgood R., Warner B., Dillon P., Trumbore S. Precambrian shield wetlands: hydrologic control of the sources and export of dissolved organic matter. Climatic Change 1998, 40(2):167-188.
    • (1998) Climatic Change , vol.40 , Issue.2 , pp. 167-188
    • Schiff, S.1    Aravena, R.2    Mewhinney, E.3    Elgood, R.4    Warner, B.5    Dillon, P.6    Trumbore, S.7
  • 43
    • 33748549606 scopus 로고    scopus 로고
    • Dissolved organic matter (DOM) export to a temperate estuary: seasonal variations and implications of land use
    • Stedmon C.A., Markager S., Sondergaard M., Vang T., Laubel A., Borch N.H., Windelin A. Dissolved organic matter (DOM) export to a temperate estuary: seasonal variations and implications of land use. Estuaries and Coasts 2006, 29(3):388-400.
    • (2006) Estuaries and Coasts , vol.29 , Issue.3 , pp. 388-400
    • Stedmon, C.A.1    Markager, S.2    Sondergaard, M.3    Vang, T.4    Laubel, A.5    Borch, N.H.6    Windelin, A.7
  • 44
    • 0026292522 scopus 로고
    • Stream chemistry and hydrologic pathways during snowmelt in a small watershed adjacent lake-superior
    • Stottlemyer R., Toczydlowski D. Stream chemistry and hydrologic pathways during snowmelt in a small watershed adjacent lake-superior. Biogeochemistry 1991, 13(3):177-197.
    • (1991) Biogeochemistry , vol.13 , Issue.3 , pp. 177-197
    • Stottlemyer, R.1    Toczydlowski, D.2
  • 45
    • 15244354601 scopus 로고    scopus 로고
    • Spatial variation of streamwater chemistry in two Swedish boreal watersheds: implications for environmental assessment
    • Temnerud J., Bishop K. Spatial variation of streamwater chemistry in two Swedish boreal watersheds: implications for environmental assessment. Environmental Science & Technology 2005, 39(6):1463-1469.
    • (2005) Environmental Science & Technology , vol.39 , Issue.6 , pp. 1463-1469
    • Temnerud, J.1    Bishop, K.2
  • 46
    • 0036394997 scopus 로고    scopus 로고
    • Dissolved organic carbon in the Mid-Atlantic Bight Deep-Sea Research: Part II
    • Vlahos P., Chen R.F., Repeta D.J. Dissolved organic carbon in the Mid-Atlantic Bight Deep-Sea Research: Part II. Topical Studies in Oceanography 2002, 49:4369-4385.
    • (2002) Topical Studies in Oceanography , vol.49 , pp. 4369-4385
    • Vlahos, P.1    Chen, R.F.2    Repeta, D.J.3
  • 47
    • 77955553936 scopus 로고    scopus 로고
    • Effects of reclamation of natural wetlands to a rice paddy on dissolved carbon dynamics in the Sanjiang Plain, Northeastern China
    • Wang L.L., Song C.C., Song Y.Y., Guo Y.D., Wang X.W., Sun X.X. Effects of reclamation of natural wetlands to a rice paddy on dissolved carbon dynamics in the Sanjiang Plain, Northeastern China. Ecological Engineering 2010, 36(10):1417-1423. 10.1016/j.ecoleng.2010.06.021.
    • (2010) Ecological Engineering , vol.36 , Issue.10 , pp. 1417-1423
    • Wang, L.L.1    Song, C.C.2    Song, Y.Y.3    Guo, Y.D.4    Wang, X.W.5    Sun, X.X.6
  • 48
    • 69749099836 scopus 로고    scopus 로고
    • Behavior and characteristics of DOM during a laboratory-scale horizontal subsurface flow wetland treatment: effect of DOM derived from leaves and roots
    • Wei L.L., Zhao Q.L., Xue S., Jia T., Tang F., You P.Y. Behavior and characteristics of DOM during a laboratory-scale horizontal subsurface flow wetland treatment: effect of DOM derived from leaves and roots. Ecological Engineering 2009, 35(10):1405-1414. 10.1016/j.ecoleng.2009.05.016.
    • (2009) Ecological Engineering , vol.35 , Issue.10 , pp. 1405-1414
    • Wei, L.L.1    Zhao, Q.L.2    Xue, S.3    Jia, T.4    Tang, F.5    You, P.Y.6
  • 49
    • 78751701257 scopus 로고    scopus 로고
    • Plant-derived phenolic compounds impair the remediation of acid mine drainage using treatment wetlands
    • White R.A., Freeman C., Kang H. Plant-derived phenolic compounds impair the remediation of acid mine drainage using treatment wetlands. Ecological Engineering 2011, 37(2):172-175. 10.1016/j.ecoleng.2010.08.008.
    • (2011) Ecological Engineering , vol.37 , Issue.2 , pp. 172-175
    • White, R.A.1    Freeman, C.2    Kang, H.3
  • 50
    • 0031182367 scopus 로고    scopus 로고
    • Effects of basin size on low-flow stream chemistry and subsurface contact time in the Neversink River Watershed, New York
    • Wolock D.M., Fan J., Lawrence G.B. Effects of basin size on low-flow stream chemistry and subsurface contact time in the Neversink River Watershed, New York. Hydrological Processes 1997, 11(9):1273-1286.
    • (1997) Hydrological Processes , vol.11 , Issue.9 , pp. 1273-1286
    • Wolock, D.M.1    Fan, J.2    Lawrence, G.B.3
  • 51
    • 0346343548 scopus 로고    scopus 로고
    • Regional comparisons of watershed determinants of dissolved organic carbon in temperate lakes from the Upper Great Lakes region and selected regions globally
    • Xenopoulos M.A., Lodge D.M., Frentress J., Kreps T.A., Bridgham S.D., Grossman E., Jackson C.J. Regional comparisons of watershed determinants of dissolved organic carbon in temperate lakes from the Upper Great Lakes region and selected regions globally. Limnology and Oceanography 2003, 48(6):2321-2334.
    • (2003) Limnology and Oceanography , vol.48 , Issue.6 , pp. 2321-2334
    • Xenopoulos, M.A.1    Lodge, D.M.2    Frentress, J.3    Kreps, T.A.4    Bridgham, S.D.5    Grossman, E.6    Jackson, C.J.7
  • 52
    • 0033835085 scopus 로고    scopus 로고
    • Biodegradable dissolved organic carbon on forest soil solution and effects of chronic nitrogen deposition
    • Yano Y., McDowell W.H., Aber J.D. Biodegradable dissolved organic carbon on forest soil solution and effects of chronic nitrogen deposition. Soil Biology and Biochemistry 2000, 32:1743-1751.
    • (2000) Soil Biology and Biochemistry , vol.32 , pp. 1743-1751
    • Yano, Y.1    McDowell, W.H.2    Aber, J.D.3
  • 53
    • 84862812208 scopus 로고    scopus 로고
    • Climate effects on in-stream DOC in seven major coastal rivers in US, global biogeochemical cycles
    • Submitted.
    • Yu, Q., Tian, Y., 2011. Climate effects on in-stream DOC in seven major coastal rivers in US, global biogeochemical cycles. Journal of Geophysical Research-Letter, Submitted.
    • (2011) Journal of Geophysical Research-Letter
    • Yu, Q.1    Tian, Y.2


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