Study on hydrodynamic impact of human activities on Bamen bay,Wenchang
LIU Jianbo
CHEN Chunhua
XIE Lin
HU Yuebo
Abstract：In order to discuss the influence of human activities on the hydrodynamics of Bamen bay in Wenchang,and to evaluate quantitatively the characteristics of hydrodynamic changes before and after the ecological renovation and restoration of the blue bay in Bamen bay,based on the hydrodynamic model of EFDC,the water exchange time and tidal inflow of Bamen bay were studied in four different periods:before the pond(2006),after the pond(2014),in the current situation(2020)and during the ecological remediation and restoration plan.The results showed that the average water exchange time of Bamen bay in 2006,2014,2020 and after rehabilitation was 90.5,98.3,98.8 and 93.2 d respective-ly;the tidal influx was 2.70× 107,2.07× 107,2.11 × 107,2.59× 107 m3.From 2006 to 2014,due to the peak of aquaculture scale,the water exchange time in Bamen bay increased significantly,with an av-erage increase of about 7.8 days.From 2014 to 2020,it was less affected by human activities,and the water exchange time had not changed significantly.After the ecological renovation and restoration,compared with 2020,the average water exchange time accelerated by 5.6 days,tidal capacity increased by 22.75％,but still did not reach the level of 2006.
Keywords：water exchange timerenovation and repairblue bayhydrodynamicEFDC
Publication Date：2025-10-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：8( 29-36 )