Flood Damage Reduction Program (FDRP) in Québec: Case Study of the Chaudiére River     

Esther Roy  Jean Rousselle  Jacinthe Lacroix 《Natural Hazards》2003,28(2-3):387-405

This study presents the evolution of agreements between the governments of Canadaand Québec on flood damage reduction. In Québec, the implementation of a regulation about building in floodplains came about in 1983–1984. Today, this regulation takes the form of a policy called ``Policy of shores, littoral and floodplain protection'. Municipalities must adopt rules that concur with the principles of this policy.The Chaudiére River basin was selected for analysis of urban developmentduring the period following the application of building rules in flood-risk areas.Despite the ban on building in the strong current zone (0–20 year return periodflood zone), many buildings, essentially residential, have been erected in thiszone. These new constructions generally account for a low percentage of thetotal property value in the 0–100 year flooding area, but are legal since theyare connected to a water and sewage network that existed prior to the officialfloodplain regulation.Flood damage along the Chaudiére River will tend to increase for two reasons.Firstly, while respecting the policy mentioned above, sites are still available infloodplains for future development. Secondly, no structural flood protection workshave been erected in view of the fact they are only marginally profitable from anbenefit-cost point of view.  相似文献   

粗粒料流变研究的现状与展望   总被引：5，自引：1，他引：5  

汪明元  何晓民  程展林 《岩土力学》2003,(Z2)

粗粒料是土石坝的主要填料,高土石坝的流变已成为坝工专家和工程师广为关注的问题,其流变特性是研究的基础。分析了粗粒料流变研究的现状,介绍了长江科学院新取得的进展,并对粗粒料流变研究的前景提出了展望。  相似文献   

Adjoint　Matching　Condition　for　Parameterized　Discontinuities—A　Derivation　Using　Lagrangian-form　Costfunction   总被引：1，自引：0，他引：1  

许秦  邱崇践 《大气科学进展》1997,(1)

ＡｄｊｏｉｎｔＭａｔｃｈｉｎｇＣｏｎｄｉｔｉｏｎｆｏｒＰａｒａｍｅｔｅｒｉｚｅｄＤｉｓｃｏｎｔｉｎｕｉｔｉｅｓ—ＡＤｅｒｉｖａｔｉｏｎＵｓｉｎｇＬａｇｒａｎｇｉａｎ－ｆｏｒｍＣｏｓｔｆｕｎｃｔｉｏｎＸｕＱｉｎ（许秦）ＣｏｏｐｅｒａｔｉｖｅＩｎｓｔｉｔ...  相似文献   

末次盛冰期以来全球湿润状况的地质证据──全球古湖泊数据库及其湖水位变化的大尺度时空分析     

秦伯强  S.P.Harrison  于革  P.E.Tarasov  B.Damnati 《湖泊科学》1997,(3)

介绍了正在建设中的全球湖泊数据库的情况，以及该数据库的水位资料所反映的晚更新世末期以来全球湿润状况的变化。通过大尺度湖水位变化的时空分析，结果显示当今湖泊水位状态较历史时期而言，位于低纬干旱或半干旱地区的湖泊水位较低，而中纬及高纬湿润地区的湖泊水位较高。自末次冰盛期以来，北美大陆中南部地区湖泊水位自高至低，反映出该地区气候条件由湿变干，至早、中全新世达最干旱。而在非洲及南亚季风地区，冷期偏干，暖期偏湿。特别是在早、中全新世的温暖时期，为历史上最湿润时期。北半球中纬度地带的气候干湿变化与北半球冰盖的存在及其消融导致的西风带的南北摆动有关；而北半球季风区在早、中全新世出现的高潮面与北半球夏季辐射的增加有密切联系。  相似文献   

Adjoint Matching Condition for Parameterized Discontinuities－A Derivation Using Lagrangian-form Costfunction     

Xu Qin  Qiu Chongjian 《大气科学进展》1997,14(1):49-52

The generalized adjoint property and adjoint matching condition for systems that contain discontinuous on / off switches are derived by a perturbation analysis of the Lagranging-form costfunction  相似文献   

埋藏条件下碳酸盐岩实验室溶蚀作用模拟的热力学模型与地质勘探方向——以陕甘宁盆地下奥陶统马家沟组第五段为例   总被引：1，自引：0，他引：1  

肖林萍 《沉积与特提斯地质》1997,(4)

陕甘宁盆地下奥陶统马家沟组五段为潮坪相碳酸盐岩夹蒸发盐沉积。马五段经历了多期复杂的成岩作用，其中溶蚀作用对马五段影响深刻。首次引用热力学理论对埋藏条件下碳酸盐岩溶蚀作用进行了理论分析和计算。其结果表明碳酸盐岩在埋藏成岩的不同温度压力条件下，酸性介质中溶解反应的吉布斯自由能均为负值，说明反应可自动向方解石、白云石溶解的方向进行，并随着温压的升高溶解的趋势增大，而且白云石溶解的趋势比方解石更大。碳酸盐岩溶蚀作用是受热力学规律支配的自然地质作用。碳酸盐岩溶蚀实验模拟的热力学数学模型对陕甘宁盆地油气田勘探具有重大的理论意义和实际应用价值。  相似文献   

Private property—national legacy: Protecting privately owned archaeological sites in the united states     

Mark Michel 《Natural Resources Research》1997,6(2):131-136

  相似文献   

The transition from people''s property to private property: Consequences of the restitution principle for urban development and urban renewal in East Berlin''s inner-city residential areas     

Bettina Reimann 《Applied geography (Sevenoaks, England)》1997,17(4):301-313

The constitutional decision to return to their original owners all real-estate property in East Germany that had either been expropriated or placed under state administration (the restitution principle) has had significant consequences for urban development and urban renewal. Experiences from East Berlin's innercity residential areas illustrate the effects on the state of repair of housing, the character of residential neighbourhoods, the tenants living in the areas affected, and the future structure of real-estate ownership. The case studies reveal a picture of a contradictory development of residential neighbourhoods, including shifting power relations and new polarizations, especially between tenants and landlords.  相似文献   

某滑坡区滑带土工程地质特性研究   总被引：5，自引：0，他引：5  

刘耀涛  邓荣贵 《地质灾害与环境保护》1996,7(2):6-11

本文论述了某滑坡滑带土的工程地质特性及其滑坡稳定性的影响，为滑坡的合理整治提供了依据。  相似文献   

云南宁蒗地区喜山期斑岩带地质特征与成矿   总被引：1，自引：0，他引：1  

胡受权  郭文平 《地质与勘探》1996,32(3):7-13

斑岩带受近南北向的包都－波罗弧形断裂控制，由混源型岩浆被动侵位而成，属钙碱性系列，中酸性岩。研究表明为含铜或铜（钼）斑岩，具良好的成矿前景。  相似文献