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| | Taking part in the Ten-Year Programme for Reduction in Hazards in Leshan, the au-thor has investigated such geological hazards as rock fall, landslide, debris flow, salinization and swamping of soil, surface subsidence and so forth. In terms of natural conditions, so-cial and economic environments and the condition of a hazard, and in the light of "Stand-ard of Classification of Debris Flow and Landslide Hazards of Sichuan Province", this pa-per has divided Leshan region into two districts, five subdistrict... | | 作者参加乐山市10年减灾规划,重点调查地质灾害,确定出崩塌、滑坡、泥石流、土壤盐碱化、下湿田和地面塌陷等灾种。在综合自然条件、社会经济、受灾损失等实际情况之后,再参照《四川省泥石流、滑坡危害程度评分标准》,对乐山市地质灾害进行了分区,将该市的地质灾害划分为2个区、5个亚区和9个地段。对各地段存在地质灾害隐患与危害程度均作了简要说明。 | | 文摘来源 | | This paper analyses the plate tectonic pattern in Taiwan and its around sea arca from the data of gravity and magnetic anomaly and the regularity of the earthquake focal depth, and advances the view that there were many time collision and subduction activities in the eastern sea area of Taiwan and the ocean crust in South China Sea moved northward and reached Jiayi - Tainan-Gaoxiong-Pingdong region since Plcistocene c-poch, and to confirm that this is the rccnt plate tectonic pattern in Taiwan region. The s... | | 从重、磁异常以及天然地震的震源深度特征三方面分析了台湾及周边海域的板块构造格局,提出台湾东部更新世以来存在数次碰撞—俯冲活动和南海洋壳“北上”进抵嘉、南、高、屏地区的见解,并认为这就是台湾地区现代板块构造的格局。台湾强烈的地震活动主要受制于此,今后的防震减灾规划亦应考虑这一总的大地构造背景。 | | 文摘来源 | | To insure safety and the capability of disaster prevention and relief in a city is as important as to pursue a nice and comfortable city environment. Based on the specific location and natural disaster features in Beijing, some suggestions on disaster reduction have been proposed. | | 本文针对北京城市建设面临的自然与人为灾害背景,简要论述了北京地震、水灾、火灾及“新致灾源”的历史及现状,强调开展首都圈灾害研究及减灾规划设计的重要性,并提出了系统的减灾方略及相应的管理构想。 | | 文摘来源 | |   | | << 更多相关文摘 |
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