Dissolved Organic Matter Characteristics and Composition of Saline Lakes in the Badain Jaran Desert, China

被引:4
|
作者
Zhang, Qiang [1 ,2 ,3 ]
Wang, Yinghui [2 ,3 ]
Zhang, Xiaolang [4 ]
Mo, Xiaohan [5 ]
Zhang, Peng [2 ,3 ]
Li, Hailong [2 ,3 ]
Jiao, Jiu Jimmy [6 ]
He, Chen [7 ]
Shi, Quan [7 ]
Fu, Qinglong [8 ]
Chen, Baiyang [9 ]
Wang, Junjian [2 ,3 ]
机构
[1] Harbin Inst Technol, Sch Environm, Harbin 150090, Heilongjiang, Peoples R China
[2] Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Key Lab Soil & Groundwater Pollut Contro, Shenzhen 518055, Guangdong, Peoples R China
[3] Southern Univ Sci & Technol, State Environm Protect Key Lab Integrated Surface, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
[4] Florida Atlantic Univ, Dept Geosci, Boca Raton, FL 33431 USA
[5] Peking Univ, Sch Urban Planning & Design, Shenzhen Grad Sch, Shenzhen 518055, Guangdong, Peoples R China
[6] Univ Hong Kong, Dept Earth Sci, Hong Kong 999077, Peoples R China
[7] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
[8] China Univ Geosci, Sch Environm Studies, Wuhan 430074, Hubei, Peoples R China
[9] Harbin Inst Technol Shenzhen, State Key Lab Urban Water Resource & Environm, Shenzhen Key Lab Organ Pollut Prevent & Control, Shenzhen 518055, Guangdong, Peoples R China
来源
ACS EARTH AND SPACE CHEMISTRY | 2023年 / 7卷 / 11期
基金
中国国家自然科学基金;
关键词
saline lakes; dissolved organic matter; spectroscopiccharacteristics; ultrahigh resolution mass spectrometry; random forest; CARBON; FLUORESCENCE; COASTAL; INDEX; WATER; PHOTODEGRADATION; GROUNDWATER; REACTIVITY; RECHARGE; QUALITY;
D O I
10.1021/acsearthspacechem.3c00179
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Elucidating the characteristics and molecular composition of dissolved organic matter (DOM) is critical to understanding carbon cycling in increasingly saline lakes in arid and hyperarid areas; however, the molecular signatures of DOM in these widely distributed saline lakes remain poorly understood. Here, variations in DOM characteristics and ages with salinity were investigated across 10 small saline lakes within the Badain Jaran Desert based on absorption and fluorescence spectroscopy, Fourier transform ion cyclotron resonance mass spectrometry, and C-14-isotopic analysis. The results showed that dissolved organic carbon (DOC) significantly increased with salinity, and the C-14 age of solid-phase extracted DOM ranging 385-3935 years before present did not correlate with salinity across lakes. With increasing salinity, the DOM aromaticity, DOC-specific abundances of fluorescent components, and relative abundance of lignin-like components all decreased, whereas the relative abundance of lipid-like components increased. Regarding halogen-containing DOM, the brine lakes showed higher relative abundances of chlorine-containing lignin- and lipid-like components but comparable relative abundances of bromine-containing components, supporting preferential chlorination over bromination. This study demonstrates the strong impacts of salinization on DOM accumulation and chlorination in inland saline lakes and highlights the critical role of brine lakes as a persistent carbon pool.
引用
收藏
页码:2239 / 2251
页数:13
相关论文
共 50 条
  • [41] Contribution of groundwater to the formation of sand dunes in the Badain Jaran Desert, China
    Wang Wang
    Jiaqi Chen
    Jiansheng Chen
    Tao Wang
    Lucheng Zhan
    Yitong Zhang
    Xiaohui Ma
    Journal of Arid Land, 2023, 15 : 1340 - 1354
  • [42] Contribution of groundwater to the formation of sand dunes in the Badain Jaran Desert, China
    Wang, Wang
    Chen, Jiaqi
    Chen, Jiansheng
    Wang, Tao
    Zhan, Lucheng
    Zhang, Yitong
    Ma, Xiaohui
    JOURNAL OF ARID LAND, 2023, 15 (11) : 1340 - 1354
  • [43] Hydrochemical characteristics and recharge sources of Lake Nuoertu in the Badain Jaran Desert
    Wu, Yue
    Wang, Naiang
    Zhao, Liqiang
    Zhang, Zhenyu
    Chen, Li
    Lu, Ying
    Lu, Xiaonan
    Chang, Jinlong
    CHINESE SCIENCE BULLETIN, 2014, 59 (09): : 886 - 895
  • [44] Hydrological processes in the megadune slopes and their implications for the water source of lakes in the Badain Jaran Desert
    Ma, Yandong
    Wu, Puxia
    Chen, Yunfei
    Dong, Qiang
    Shao, Tianjie
    Zhao, Guoping
    Liu, Xiuhua
    Zhao, Zhiqiang
    Guan, Zilong
    JOURNAL OF HYDROLOGY, 2024, 631
  • [45] Geochemical information indicating the water recharge to lakes and immovable megadunes in the Badain Jaran Desert
    Chen, JS
    Zhao, X
    Sheng, XF
    Wang, JY
    Gu, WZ
    Chen, L
    ACTA GEOLOGICA SINICA-ENGLISH EDITION, 2005, 79 (04) : 540 - 546
  • [46] Hydrochemical characteristics and recharge sources of Lake Nuoertu in the Badain Jaran Desert
    Yue Wu
    Naiang Wang
    Liqiang Zhao
    Zhenyu Zhang
    Li Chen
    Ying Lu
    Xiaonan L
    Jinlong Chang
    Science Bulletin, 2014, (09) : 886 - 895
  • [47] Stable Isotopic Characteristics of Precipitation and Moisture Recycling in Badain Jaran Desert
    Cao L.
    Shen J.
    Nie Z.
    Meng L.
    Liu M.
    Wang Z.
    Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences, 2021, 46 (08): : 2973 - 2983
  • [48] Temporal 222Rn distributions to reveal groundwater discharge into desert lakes: Implication of water balance in the Badain Jaran Desert, China
    Luo, Xin
    Jiao, Jiu Jimmy
    Wang, Xu-Sheng
    Liu, Kun
    JOURNAL OF HYDROLOGY, 2016, 534 : 87 - 103
  • [49] Spatial variability of vegetation characteristics, soil properties and their relationships in and around China’s Badain Jaran Desert
    Meng Wang
    Zhibao Dong
    Wanyin Luo
    Junfeng Lu
    Jiyan Li
    Environmental Earth Sciences, 2015, 74 : 6847 - 6858
  • [50] Strontium isotopic and hydrochemical characteristics of shallow groundwater and lake water in the Badain Jaran Desert, North China
    Jin, Ke
    Rao, Wenbo
    Zhang, Wenbing
    Zheng, Fangwen
    Wang, Shuai
    ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES, 2021, 57 (05) : 516 - 534