Temporal and Spatial Variation Trends in Water Quality Based on the WPI Index in the Shallow Lake of an Arid Area: A Case Study of Lake Ulansuhai, China

被引:26
|
作者
Zhang, Qi [1 ]
Yu, Ruihong [1 ,2 ]
Jin, Ye [1 ]
Zhang, Zhuangzhuang [1 ]
Liu, Xinyu [1 ]
Xue, Hao [1 ]
Hao, Yanling [1 ,2 ]
Wang, Lixin [1 ,2 ]
机构
[1] Inner Mongolia Univ, Sch Ecol & Environm, Key Lab River & Lake Inner Mongolia Autonomous Re, Hohhot 010021, Inner Mongolia, Peoples R China
[2] Minist Educ, Key Lab Ecol & Resources Use Mongolian Plateau, Hohhot 010021, Inner Mongolia, Peoples R China
基金
中国国家自然科学基金;
关键词
Lake Ulansuhai; spatio-temporal variation; water pollution index (WPI); daniel trend test; cluster analysis; regime shift; POLLUTION INDEX; RIVER; MANAGEMENT; PHOSPHORUS; DANUBE;
D O I
10.3390/w11071410
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Ulansuhai, the largest shallow lake of the Yellow River of China, is an important component of the Hetao region irrigation system. Many concerns have concentrated on its water quality, which affects the local water security and sustainable economic development. In this study, the water pollution index (WPI), an effective water quality evaluation method, was used to compare the pollution levels among pollution indicators and to determine the major pollution indicators. The regime shift index (RSI) approach was employed to identify the water quality trends. Cluster analysis and Daniel trend test methods were employed to analyse the inner-annual and inter-annual spatio-temporal trends of the typical water quality indicators (e.g., total nitrogen (TN), total phosphorus (TP), dissolved oxygen (DO), and chemical oxygen demand (COD)) in Lake Ulansuhai. The results show that the water quality of Ulansuhai improved from 1998 to 2017; spatial variations in the WPITN, WPITP, and WPIDO followed the order of inlet > centre and outlet, while spatial variations in the WPICOD showed the order of outlet > inlet > centre. TN was the critical pollution indicator throughout the year. In 2017, the dry season and wet season were determined using cluster analysis. The WPICOD was higher than the WPITN, WPITP, and WPIDO in the dry season, while the WPITN, WPITP, and WPIDO were higher than the WPICOD in the wet season. WPI was grouped into three clusters: highly polluted regions, moderately polluted regions, and less polluted regions, However, there is a discrepancy between the three polluted regions that were divided into the dry season and the wet season. The WPICOD was highest among all pollution indicators in 2017. Major sources of pollution that contribute to the deterioration of water quality include inner-annual or inter-annual pollution, agricultural non-point pollution, point source pollution, and internal pollution. This study provides useful information for authorities to effectively manage water quality and control water pollution.
引用
收藏
页数:20
相关论文
共 50 条
  • [41] Spatial and temporal analysis of drought using entropy-based standardized precipitation index: a case study in Poyang Lake basin, China
    Xingjun Hong
    Shenglian Guo
    Lihua Xiong
    Zhangjun Liu
    Theoretical and Applied Climatology, 2015, 122 : 543 - 556
  • [42] Spatial and temporal analysis of drought using entropy-based standardized precipitation index: a case study in Poyang Lake basin, China
    Hong, Xingjun
    Guo, Shenglian
    Xiong, Lihua
    Liu, Zhangjun
    THEORETICAL AND APPLIED CLIMATOLOGY, 2015, 122 (3-4) : 543 - 556
  • [43] Management of water quality targets based on river-lake water quality response relationships for lake basins - A case study of Dianchi Lake
    He, Jia
    Wu, Xue
    Zhang, Ying
    Zheng, Binghui
    Meng, Di
    Zhou, Hongbin
    Lu, Lu
    Deng, Weiming
    Shao, Zhi
    Qin, Yinhui
    ENVIRONMENTAL RESEARCH, 2020, 186
  • [44] Annual dynamics of water quality in a small urban landscape lake: a case study of Lake Wuzhou, China
    Gao, Yuan
    Zhao, Yanjie
    DESALINATION AND WATER TREATMENT, 2020, 202 : 264 - 268
  • [45] Estimating the ecological water levels of shallow lakes: a case study in Tangxun Lake, China
    Wei Yang
    Mingxiang Xu
    Ruiqing Li
    Liping Zhang
    Qiuliang Deng
    Scientific Reports, 10
  • [46] Estimating the ecological water levels of shallow lakes: a case study in Tangxun Lake, China
    Yang, Wei
    Xu, Mingxiang
    Li, Ruiqing
    Zhang, Liping
    Deng, Qiuliang
    SCIENTIFIC REPORTS, 2020, 10 (01)
  • [47] Spatio-temporal Changes of Water Quality Based on Water Quality Index Method in Tropical Lake of Indonesia
    Puti Sri Komala
    Tri Retnaningsih Soeprobowati
    Noverita Dian Takarina
    Luki Subehi
    Marta Wojewódka-Przybył
    Budhi Primasari
    Tivany Edwin
    Ridwan Ridwan
    Elsa Rahmadiningsih
    Regina Mardatillah
    Water, Air, & Soil Pollution, 2023, 234
  • [48] Spatio-temporal Changes of Water Quality Based on Water Quality Index Method in Tropical Lake of Indonesia
    Komala, Puti Sri
    Soeprobowati, Tri Retnaningsih
    Takarina, Noverita Dian
    Subehi, Luki
    Wojewodka-Przybyl, Marta
    Primasari, Budhi
    Edwin, Tivany
    Ridwan, Ridwan
    Rahmadiningsih, Elsa
    Mardatillah, Regina
    WATER AIR AND SOIL POLLUTION, 2023, 234 (09):
  • [49] Water pollution characteristics and influencing factors of closed lake in a semiarid area: a case study of Daihai Lake, China
    Xiaohui Ren
    Ruihong Yu
    Jianfang Kang
    Changwei Lü
    Rui Wang
    Yuan Li
    Zhonghua Zhang
    Environmental Earth Sciences, 2022, 81
  • [50] Water pollution characteristics and influencing factors of closed lake in a semiarid area: a case study of Daihai Lake, China
    Ren, Xiaohui
    Yu, Ruihong
    Kang, Jianfang
    Lu, Changwei
    Wang, Rui
    Li, Yuan
    Zhang, Zhonghua
    ENVIRONMENTAL EARTH SCIENCES, 2022, 81 (15)