摘要
长江三角洲及邻近地区是下一世纪海平面加速上升的敏感地区.运用海平面上升影响指数综合评价显示,影响最严重的地区是长江三角洲,次为杭州湾北岸和废黄河三角洲,最轻是苏北中部滨海平原.
The densely populated and economically developed Changjiang River delta and its adjacent area will be the reigon vulnerable to the sea level rise in the next century. Sea level rise would result in:1)retreat of coast,vertical erosi on of tidal flat and increase in length of eroding coastline;2)decrease in area of tidal flat and wetlands due to erosion,i-nundation and reduction in deposition; 3)increase in frequency and intensity of storm surge,which would threaten the coastal protection works and the protected coastal low-land ;4)impeding drainage of Lixiahe lowland and eastern lowland of Taihu Lake region and exacerbating flood and waterlogging disaster;5)increase in salt water intrusion into the Changjiang River estuary.Comprehensive impact assessment of sea level rise in this area shows that the Changjiang River delta is the area most severly effected by sea level rise and the next is the northern bank of Hangzhou Bay and the abandoned Huanghe River delta,and the area most slightly effected by sea level rise is the north Jiangsu coastal plain.
出处
《地理科学》
CSSCI
CSCD
北大核心
1994年第2期109-117,共9页
Scientia Geographica Sinica
基金
国家自然科学基金委员会
中国科学院基金联合资助项目.
关键词
海平面上升
海岸灾害
长江
三角洲
Sea level rise
Coastal hazards
Impact index of sea level rise
