Variations in the light absorption coefficients of phytoplankton, non-algal particles and dissolved organic matter in reservoirs across China

dc.contributor.authorShang, Yingxin
dc.contributor.authorJacinthe, Pierre-Andre
dc.contributor.authorLi, Lin
dc.contributor.authorWen, Zhidan
dc.contributor.authorLiu, Ge
dc.contributor.authorLyu, Lili
dc.contributor.authorFang, Chong
dc.contributor.authorZhang, Bai
dc.contributor.authorHou, Junbin
dc.contributor.authorSong, Kaishan
dc.contributor.departmentEarth Sciences, School of Scienceen_US
dc.date.accessioned2022-12-27T21:00:24Z
dc.date.available2022-12-27T21:00:24Z
dc.date.issued2021-10
dc.description.abstractReservoirs were critical sources of drinking water for many large cities around the world, but progress in the development of large-scale monitoring protocols to obtain timely information about water quality had been hampered by the complex nature of inland waters and the various optical conditions exhibited by these aquatic ecosystems. In this study, we systematically investigated the absorption coefficient of different optically-active constituents (OACs) in 120 reservoirs of different trophic states across five eco-regions in China. The relationships were found between phytoplankton absorption coefficient at 675 nm (aph (675)) and Chlorophyll a (Chla) concentration in different regions (R2:0.60-0.82). The non-algal particle (NAP) absorption coefficient (aNAP) showed an increasing trend for reservoirs with trophic states. Significant correlation (p < 0.05) was observed between chromophoric dissolved organic matter (CDOM) absorption and water chemical parameters. The influencing factors for contributing the relative proportion of OACs absorption including the hydrological factors and water quality factors were analyzed. The non-water absorption budget from our data showed the variations of the dominant absorption types which underscored the need to develop and parameterize region-specific bio-optical models for large-scale assessment in water reservoirs.en_US
dc.eprint.versionAuthor's manuscripten_US
dc.identifier.citationShang, Y., Jacinthe, P.-A., Li, L., Wen, Z., Liu, G., Lyu, L., Fang, C., Zhang, B., Hou, J., & Song, K. (2021). Variations in the light absorption coefficients of phytoplankton, non-algal particles and dissolved organic matter in reservoirs across China. Environmental Research, 201, 111579. https://doi.org/10.1016/j.envres.2021.111579en_US
dc.identifier.issn1096-0953en_US
dc.identifier.urihttps://hdl.handle.net/1805/30800
dc.language.isoen_USen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.envres.2021.111579en_US
dc.relation.journalEnvironmental Researchen_US
dc.rightsPublisher Policyen_US
dc.sourceAuthoren_US
dc.subjectChinaen_US
dc.subjectChlorophyll Aen_US
dc.subjectPhytoplanktonen_US
dc.subjectRegionsen_US
dc.titleVariations in the light absorption coefficients of phytoplankton, non-algal particles and dissolved organic matter in reservoirs across Chinaen_US
dc.typeArticleen_US
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