厦门海域环境指标变化与动因分析研究

Sea Area Changes in Multi Environment Factors and Its Driving Forces Analysis in Xiamen City

厦门围垦、围建等涉海洋工程必然对邻近海域产生影响。结果表明:11999—2013年厦门海域面积减少了63.69km2,年平均变化率约-0.92%;滩涂面积减少了47.08km2,年平均变化率约-5.2%。2厦门海域岸线类型复杂,1999年和2006年自然岸线与人工岸线比例分别为1∶1和1∶4.95,人工岸线以1.54%比率增加;2006—2013年岸线整体比例无较大变化,局部岸线改造工程显著。3厦门海域悬浮泥沙含量分布相对稳定,局部海域受沿海建设及政策支持的影响有突出变化。

In recent years, the coastal engineering constructions brought severe impact on the marine environment. The results showed that： ①The sea area reduced 63.69km^2 and the beaches reduced 47.08km^2 during the study years. ②The coastline types tended to be decreased from 1： 1 to 1：4.95 for the natural and artificial in 1999 - 2006, only the part of coastline types had significant changes in 2006 - 2013. ③The concentration situ- ation of suspended sediments was relatively stable, and its principal affected by construction and policy support.