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dc.contributor.authorTan, Zeli
dc.contributor.authorLeung, L. Ruby
dc.contributor.authorLi, HongYi
dc.contributor.authorTesfa, Teklu
dc.contributor.authorVanmaercke, Matthias
dc.contributor.authorPoesen, Jean
dc.contributor.authorZhang, Xuesong
dc.contributor.authorLu, Hui
dc.contributor.authorHartmann, Jens
dc.date.accessioned2018-08-09T19:15:53Z
dc.date.available2018-08-09T19:15:53Z
dc.date.issued2017-12
dc.identifier.citationTan, Zeli, L. Ruby Leung, HongYi Li, Teklu Tesfa, Matthias Vanmaercke, Jean Poesen, Xuesong Zhang, Hui Lu, and Jens Hartmann. "A Global Data Analysis for Representing Sediment and Particulate Organic Carbon Yield in Earth System Models." Water Resources Research 53, no. 12 (December 2017): 10674-10700. DOI: 10.1002/2017WR020806.en_US
dc.identifier.issn0043-1397
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/14677
dc.description.abstractAlthough sediment yield (SY) from water erosion is ubiquitous and its environmental consequences are well recognized, its impacts on the global carbon cycle remain largely uncertain. This knowledge gap is partly due to the lack of soil erosion modeling in Earth System Models (ESMs), which are important tools used to understand the global carbon cycle and explore its changes. This study analyzed sediment and particulate organic carbon yield (CY) data from 1,081 and 38 small catchments (0.1-200 km2), respectively, in different environments across the globe. Using multiple statistical analysis techniques, we explored environmental factors and hydrological processes important for SY and CY modeling in ESMs. Our results show clear correlations of high SY with traditional agriculture, seismicity and heavy storms, as well as strong correlations between SY and annual peak runoff. These highlight the potential limitation of SY models that represent only interrill and rill erosion because shallow overland flow and rill flow have limited transport capacity due to their hydraulic geometry to produce high SY. Further, our results suggest that SY modeling in ESMs should be implemented at the event scale to produce the catastrophic mass transport during episodic events. Several environmental factors such as seismicity and land management that are often not considered in current catchment-scale SY models can be important in controlling global SY. Our analyses show that SY is likely the primary control on CY in small catchments and a statistically significant empirical relationship is established to calculate SY and CY jointly in ESMs.en_US
dc.description.sponsorshipU.S. Department of Energy; German Science Foundationen_US
dc.language.isoenen_US
dc.rightsThis Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en_US
dc.titleA Global Data Analysis for Representing Sediment and Particulate Organic Carbon Yield in Earth System Modelsen_US
dc.typeArticleen_US
mus.citation.extentfirstpage10674en_US
mus.citation.extentlastpage10700en_US
mus.citation.issue12en_US
mus.citation.journaltitleWater Resources Researchen_US
mus.citation.volume53en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1002/2017WR020806en_US
mus.relation.collegeCollege of Agricultureen_US
mus.relation.departmentLand Resources & Environmental Sciences.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage3en_US


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