应对海平面上升与地面沉降迭加引发的地质灾害与生态环境问题

IMPACTS OF SUPERPOSITION OF SEA LEVEL RISE AND LAND SUBSIDENCE ON COASTAL REGION IN ZHEJIANG PROVINCE

海平面上升已引起各国政府和科技界的高度关注。预计未来30年,浙江沿海海平面将比2009年升高88-140 mm。海平面上升与浙江沿海平原地面沉降迭加将进一步恶化地质与生态系统,引发许多灾害问题,制约沿海区域经济社会的可持续发展。本文主要就如何应对海平面上升与地面沉降迭加引发的地质灾害链与生态环境问题进行了探讨,认为要从地球系统科学角度,重视对陆-海相互作用机制与生态环境效应的研究,着手考虑建立陆海（包括入海河流）统筹的海岸带地质与生态环境监测评价系统。

The coastal plains in Zhejiang province is one of the most concentrated regions in terms of population and one of the most economically-developed areas in China.The plain areas have occurred increasingly severe land subsidence due to extensive groundwater exploitation.The sea level rise in Zhejiang province will be 88-140 mm by the year 2 030.The superposition of sea level rise and land subsidence will result in damaging the ecosystems of coastal region,undermining the capacity of public drainage facilities in coastal cities,increasing in the frequency and impact of storm surge and floods,seawater intrusion and soil salinization,and impairing the functions of harbors.To address the disaster chain resulting from the superposition of sea level rise and land subsidence,the monitoring of sea level rise and land subsidence should be strengthened,and a system used to monitor,forecast,analyze and evaluate the disasters should be established.