1998年我市遭受了洪涝、台风、干旱多种自然灾害。如5月下旬的阳东县、海陵开发区的特大暴雨;6月底7月初漠阳江流域发生的建市以来最严重的洪水都给我市造成了较大的灾害。但从减灾效益看,由于准备工作的不同,这次暴雨洪水造成的结果却不一样。5月下旬特大暴雨,造成海陵镇东岭水库垮坝,而6月底7月初的洪水其强度和持续时间远远超过5 In 1998, the city suffered various natural disasters such as floods, typhoons and aridities. Such as the extremely heavy rainstorms in Yangdong and Hailing Development Zone in late May; the most serious floods since the construction of the city in the desert basin in late June and early July all caused great disasters in our city. However, from the perspective of disaster reduction benefits, due to the different preparation work, the result of the storm flood is not the same. The heavy rainfall in late May caused the Dongling Reservoir to break down in Hailing Town, and the intensity and duration of the flood in late June and early July far exceeded 5