Spatiotemporal evolution of dissolved organic matter (DOM) and its response to environmental factors and human activities

Mengyu Liu, Haihan Tian, Tao Chen, Jingyao Sun, Ruipeng Sun, Qiang Kong, Zheng Zhao, Siju Zhang and Fei Xu

PLOS ONE, 2023, vol. 18, issue 10, 1-16

Abstract: The South-to-North Water Diversion East Project (SNWDP-E) is an effective way to realize the optimal allocation of water resources in China. The North Dasha River (NDR) is the reverse recharge section that receives water from the Yufu River to the Wohushan Reservoir transfer project line in the SNWDP. However, the dissolved organic matter (DOM) evolution mechanism of seasonal water transfer projects on tributary waters has not been fully elucidated. In this paper, the NDR is the main object, and the changes in the composition and distribution of spectral characteristics during the winter water transfer period (WT) as well as during the summer non-water transfer period (NWT) are investigated by parallel factor analysis (PARAFAC). The results showed that the water connectivity caused by water transfer reduces the environmental heterogeneity of waters in the basin, as evidenced by the ammonia nitrogen (NH4+-N) and total phosphorus (TP) in the water body were significantly lower (p

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0292705

DOI: 10.1371/journal.pone.0292705

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