Saltwater intrusion of the Nandu River under the changing environment in China

被引：0
|
作者：
Wang, Yimei [1 ]
Zou, Yi [1 ]
He, Yanhu [2 ]
Zhu, Lirong [3 ]
Ye, Changqing [1 ,4 ]
机构：
[1] Hainan Univ, Coll Ecol & Environm, Haikou 570228, Peoples R China
[2] Guangdong Technol Univ, Inst Environm & Ecol Engn, Guangzhou 510000, Peoples R China
[3] Hainan Univ, Sch Tourism, Haikou 570228, Peoples R China
[4] Key Lab Agroforestry Environm Proc & Ecol Regulat, Haikou 570228, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 2024年 / 207卷
基金：
中国国家自然科学基金;
关键词：
Saltwater intrusion; Runoff variability; Sea level; MIKE; 11; Nandu River; Risk assessment; SEA-LEVEL RISE; SALINITY INTRUSION; ESTUARINE SALINITY; WATER-INTRUSION; CLIMATE-CHANGE; IMPACTS; STREAMFLOW; TRANSPORT; NETWORK; TRENDS;
D O I：
10.1016/j.marpolbul.2024.116889
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Saltwater problems in the Nandu River have gradually intensified in recent years. The effect of runoff variability (RV) on saltwater intrusion has not yet been fully revealed. Long-term trends in runoff and sea level (SL) were analyzed using the Mann-Kendall test and Theil-Sen estimation, and salinity exceedance rates (Ps) were calculated based on MIKE 11 and daily runoff distributions. As RV increased, Ps decreased the most at 16.0 km (6.7 %) and increased the most at 23.2 km (5.3 %). SL increased by 0.4 m and Ps increased the most at 20.5 km (11.7 %). Constant Ps is projected to move downstream by the 2060s and 210 s, with maximum increases in Ps of 6.2 % and 10.1 %, respectively. The ratio of changes in Ps due to changes in RV and SL is about 0.85. Constant Ps sections can be used to assess the risk of saline intrusion in some of the world's estuaries.
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页数：11
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