[Bioavailability Characteristics of Chromophoric Dissolved Organic Matter in Lake Gaoyou, Lake Nansi, and Lake Dongping Under Different Hydrological Scenarios]

Autor: Liu-Qing, Zhang, Yu, Shi, Yuan-Peng, Li, Yan-Ni, Guo, Lei, Zhou, Yong-Qiang, Zhou, Yun-Lin, Zhang, Yan, Yang
Rok vydání: 2020
Zdroj: Huan jing ke xue= Huanjing kexue. 41(5)
ISSN: 0250-3301
Popis: The bio-lability of chromophoric dissolved organic matter (CDOM) directly reflects its biodegradability potential, and also affects the migration and conversion of pollutants and impacts water quality. This study combines excitation-emission matrices and parallel factor analysis (EEMs-PARAFAC) with laboratory 28 days of bio-incubation experiments, and analyzed the bioavailability characteristics of CDOM samples collected from Lake Gaoyou, Lake Nansi and Lake Dongping in flood season and dry season. Our results showed that:① four fluorescent components were obtained using EEMs-PARAFAC, including a microbial humic-like C1, a terrestrial humic-like C4, a tryptophan-like C2, and a tyrosine-like C3. ② The differences of CDOM absorption pre-and post-incubation, i.e. Δ
Databáze: OpenAIRE