Characteristic of water quality indicators and its response to climate conditions in the middle and lower reaches of Lijiang River, China

被引:0
|
作者
Dantong Zhu
Xiangju Cheng
Wuhua Li
Fujun Niu
Jianhui Wen
机构
[1] South China University of Technology,State Key Laboratory of Subtropical Building Science
[2] South China University of Technology,School of Civil Engineering and Transportation
[3] South China University of Technology,Institution of Geotechnical Engineering, School of Civil Engineering and Transportation
[4] Guilin Environmental Monitoring Center,undefined
来源
关键词
Climate condition; Water quality; Sensitivity coefficient; Contribution rate; Lijiang river basin; Dominant factor;
D O I
暂无
中图分类号
学科分类号
摘要
With global climate change and increasingly extreme weather conditions, the water quality of the Lijiang River Basin (LRB) is facing huge threats. At present, there is still a lack of systematic research on water quality indicators and the influence of indirect factors such as meteorological factors on it in the LRB. Therefore, this study is based on the meteorological, hydrological, and water quality data of the LRB from 2012 to 2018, using the Mann–Kendall test, Morlet wavelet method, Spearman’s rank correlation coefficient, sensitivity, and contribution rate to quantitative analysis of the relationship between climate conditions and water quality indicators. The results show that the change trends of these hydrological and climatic conditions have almost no significant sudden change; precipitation and streamflow are decreasing each year; the streamflow trend exhibits time hysteresis; precipitation has a stronger influence downstream than on the local area; water quality indicators of both stations exhibited a change period of around 18 to 20 months, with the exception of pH. Water quality indicators are insensitive to precipitation and streamflow, and sensitive to humidity and wind speed; DO was negatively correlated with climate indicators apart from wind speed; almost all water quality indicators in Yangshuo are highly sensitive to air temperature, and the contribution rate of air temperature to ORP and TP reached 4.81% and 3.56%, respectively; sunshine duration has a positive impact on reducing NH4-N and TP. The difference between Yangshuo and Guilin is mostly due to the input of external sources on both sides of the Lijiang River, which results in variations in climate conditions sensitivities.
引用
收藏
相关论文
共 50 条
  • [1] Characteristic of water quality indicators and its response to climate conditions in the middle and lower reaches of Lijiang River, China
    Zhu, Dantong
    Cheng, Xiangju
    Li, Wuhua
    Niu, Fujun
    Wen, Jianhui
    [J]. ENVIRONMENTAL MONITORING AND ASSESSMENT, 2023, 195 (03)
  • [2] Temporal and Spatial Variation Characteristics of Water Quality in the Middle and Lower Reaches of the Lijiang River, China and Their Responses to Environmental Factors
    Zhu, Dantong
    Cheng, Xiangju
    Li, Wuhua
    Niu, Fujun
    Wen, Jianhui
    [J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH, 2022, 19 (13)
  • [3] Water quality model establishment for middle and lower reaches of Hanshui River, China
    Wang Qinggai
    Zhao Xiaohong
    Yang Mushui
    Zhao Yue
    Liu Kun
    Ma Qiang
    [J]. CHINESE GEOGRAPHICAL SCIENCE, 2011, 21 (06) : 646 - 655
  • [4] Water quality model establishment for middle and lower reaches of Hanshui River, China
    Qinggai Wang
    Xiaohong Zhao
    Mushui Yang
    Yue Zhao
    Kun Liu
    Qiang Ma
    [J]. Chinese Geographical Science, 2011, 21 : 646 - 655
  • [5] Variation Characteristic of NDVI and its Response to Climate Change in the Middle and Upper Reaches of Yellow River Basin, China
    Lu, Chengpeng
    Hou, Muchen
    Liu, Zhiliang
    Li, Hengji
    Lu, Chenyu
    [J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2021, 14 : 8484 - 8496
  • [6] Water Quality Model Establishment for Middle and Lower Reaches of Hanshui River,China
    WANG Qinggai1
    ZHAO Xiaohong1
    YANG Mushui1
    ZHAO Yue1
    LIU Kun2
    MA Qiang3(1.Appraisal Center for Environment and Engineering
    Ministry of Environmental Protection
    Beijing 100012
    China
    2.Shanghai Chengtou Environment Asset Management Company Limited
    Shanghai 200020
    China
    3.Danish Hydralics Institute in China
    Shanghai 200032
    China)
    [J]. Chinese Geographical Science . , 2011, (06) - 655
  • [7] Water Quality Model Establishment for Middle and Lower Reaches of Hanshui River,China
    WANG Qinggai1
    2.Shanghai Chengtou Environment Asset Management Company Limited
    3.Danish Hydralics Institute in China
    [J]. Chinese Geographical Science, 2011, 21 (06) : 646 - 655
  • [8] Water and Sediment Quality in Lakes along the Middle and Lower Reaches of the Yangtze River, China
    Jinglu Wu
    Haiao Zeng
    Hong Yu
    Long Ma
    Longsheng Xu
    Boqiang Qin
    [J]. Water Resources Management, 2012, 26 : 3601 - 3618
  • [9] Water and Sediment Quality in Lakes along the Middle and Lower Reaches of the Yangtze River, China
    Wu, Jinglu
    Zeng, Haiao
    Yu, Hong
    Ma, Long
    Xu, Longsheng
    Qin, Boqiang
    [J]. WATER RESOURCES MANAGEMENT, 2012, 26 (12) : 3601 - 3618
  • [10] Ecohydrological indicators and environmental flow assessment in the middle and lower reaches of the Huai River, China
    Wei, Qing
    Xue, Lianqing
    Liao, Shumin
    Liu, Yuanhong
    [J]. SCIENCE OF THE TOTAL ENVIRONMENT, 2024, 940