作　　者： ; ;

机构地区： 华南师范大学

出　　处： 《热带地理》 1992年第2期99-107,共9页

摘　　要： 根据珠江口28个验潮站近数十年的观测记录,进行最小二乘法回归直线方程计算,获得本区海平面平均上升速度为2.31mm/a,如略去最大值和最小值,则平均上升速度为2.028mm/a。即本区海平面数十年来呈现明显的上升趋势。对28个站作比较后,划分为4类:海平面强烈上升地区、上升地区、微弱上升地区、下降地区,并对这4类地区进行地壳运动分析。 From the records of the tide gauges, it is shown that sea level of the Zhujiang Delta tends to rise and the average rising rate is 2.028 mm per year. But in some uplifted regions such as Huang Pu, Hong Kong, Chi Wan, Macao etc., sea level tends to descend. The authors point out that sea level rise would have great influence on economic construction. According to their calculation, half of the Zhujiang Delta may drop down to sea level and may be submerged by sea water in about 2050. At that time, half of the fertile land in the Delta would be lost. Therefore, the dykes and dams along the coastline must be reinforced in order to deal with the rise of sea level.

关 键 词： 海平面 珠江 三角洲 新构造运动

领　　域： [天文地球]