Amino acids as indicators of seasonal variations in organic matter degradation in surface sediments from a shallow lake

被引:8
作者
Wen, Yan [1 ,2 ]
Zhang, Wengiang [1 ,2 ]
Shan, Baoging [1 ,2 ]
机构
[1] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源
JOURNAL OF ENVIRONMENTAL SCIENCES | 2023年 / 131卷
关键词
Sediment; Organic matter; Amino acid; Temperature; Degradation; TEMPERATURE; CHINA; MINERALIZATION; KINETICS;
D O I
10.1016/j.jes.2022.10.043
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Degradation of organic matter (OM) in sediments is a key link in nutrient cycling and sedimentation processes in lakes. The aim of this study was to explore the degradation of OM in surface sediments of a shallow lake (Baiyangdian Lake, China) under seasonal temperature variations. For this, we used the amino acid-based degradation index (DI) and the spatiotemporal distribution characteristics and sources of OM. Sediment OM in the lake mainly originated from freshwater aquatic plants and terrestrial C4 plants. The sediment at some sampling sites was affected by surrounding crops. The organic carbon and total nitrogen contents, and the total hydrolyzed amino acid concentrations in the sediments were highest in summer and lowest in winter. The lowest DI occurred in spring, which indicated that the OM in the surface sediment at this time was highly degraded and relatively stable, and the highest DI occurred in winter, which showed that the sediment was fresh. The water temperature was positively correlated with the organic carbon content ( p < 0.01) and total hydrolyzed amino acids concentration ( p < 0.05). Seasonal variations in the overlying water temperature had a large effect on OM degradation in the lake sediments. Our results will facilitate the management and restoration of lake sediments that suffer from endogenous release of OM in a warming climate.(c) 2022 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
引用
收藏
页码:1 / 10
页数:10
相关论文
共 50 条
[41]   Seasonal changes-facilitated release of phosphorus and tungsten from the Lake Taihu sediments through reductive dissolution of Fe/Mn (hydr)oxides and competitive adsorption with dissolved organic matter [J].
Chen, Xiang ;
Wang, Yan ;
Li, Minjuan ;
He, Xiangyu ;
Li, Qi ;
Jin, Junliang ;
Wu, Tingfeng ;
Shao, Yichun ;
Wu, Jingwei ;
Li, Gaoxiang ;
Liu, Ling ;
Yan, Wenming .
ENVIRONMENTAL POLLUTION, 2025, 383
[42]   Dissolved soil organic matter from surface organic horizons under birch and conifers:: Degradation in relation to chemical characteristics [J].
Kiikkilä, O ;
Kitunen, V ;
Smolander, A .
SOIL BIOLOGY & BIOCHEMISTRY, 2006, 38 (04) :737-746
[43]   Disentangling the Interactions Between Photochemical and Bacterial Degradation of Dissolved Organic Matter: Amino Acids Play a Central Role [J].
Amado, Andre M. ;
Cotner, James B. ;
Cory, Rose M. ;
Edhlund, Betsy L. ;
McNeill, Kristopher .
MICROBIAL ECOLOGY, 2015, 69 (03) :554-566
[44]   Dissolved Organic Matter Export from Surface Sediments of a New England Salt Marsh [J].
Schiebel, Hayley N. ;
Peri, Francesco ;
Chen, Robert F. .
WETLANDS, 2020, 40 (04) :693-705
[45]   An alternative approach to reconstructing organic matter accumulation with contrasting watershed disturbance histories from lake sediments [J].
Das, Biplob ;
Nordin, Rick ;
Mazumder, Asit .
ENVIRONMENTAL POLLUTION, 2008, 155 (01) :117-124
[46]   Dissolved Organic Matter Export from Surface Sediments of a New England Salt Marsh [J].
Hayley N. Schiebel ;
Francesco Peri ;
Robert F. Chen .
Wetlands, 2020, 40 :693-705
[47]   Quantification of Organic Matter Degradation by Microbial Sulphate Reduction for Quaternary Sediments from the Northern Arabian Sea [J].
R. Littke ;
A. Lückge ;
D. H. Welte .
Naturwissenschaften, 1997, 84 :312-315
[48]   A High Accumulation of Dissolved Organic Matter in the Water Resulting from Terrestrial Input into a Large, Shallow Steppe Lake [J].
Zhang, Chi ;
Li, Wenjing ;
Du, Wei ;
Cao, Bingshuai ;
Wang, Wenlin ;
Pang, Bo ;
Dou, Huashan ;
Ao, Wen ;
Liu, Bo ;
Yao, Shihao .
WATER, 2023, 15 (09)
[49]   Transformation of organic matter in the Holocene sediments of Lake Ochki (south Baikal region): Evidence from pyrolysis data [J].
V. N. Melenevskii ;
G. A. Leonova ;
V. A. Bobrov ;
V. A. Kashirtsev ;
S. K. Krivonogov .
Geochemistry International, 2015, 53 :903-921
[50]   Transformation of Organic Matter in the Holocene Sediments of Lake Ochki (South Baikal Region): Evidence from Pyrolysis Data [J].
Melenevskii, V. N. ;
Leonova, G. A. ;
Bobrov, V. A. ;
Kashirtsev, V. A. ;
Krivonogov, S. K. .
GEOCHEMISTRY INTERNATIONAL, 2015, 53 (10) :903-921