作　　者： ; ; ; ;

机构地区： 深圳大学建筑与城市规划学院

出　　处： 《中国安全科学学报》 2012年第4期110-115,共6页

摘　　要： 为使城市土地利用规划与灾害风险管理更好地结合,从城市规划的基础单元———城市用地系统出发,提出基于城市用地单元的区域综合自然灾害风险评估的概念模型。基于城市用地单元的灾害风险评估,包括城市土地利用单元上潜在致灾因子及承灾体自然脆弱性相结合的灾损风险评估,以及人口、经济、社会因素等所引起的社会脆弱性评估2个方面。通过耦合矩阵,得到5个等级的灾害风险。其中,灾损风险与脆弱性均较高的城市用地单元或区域应得到高度关注。基于城市土地利用单元的灾害风险评估模型的应用关键,在于建立城市用地单元的数据库。提高基础数据的精度,有助于提高评估结果的精度。 To combine disaster risk and sustainable land use,on the basis of the urban planning unit-urban land use system,a conceptual model for natural disaster risk assessment was proposed.The urban land use unit based model covers damage risk assessment and social vulnerability assessment,the former involves the potential disaster causing factors at urban land use unit and the natural vulnerability of disaster-bearing community,and the latter involves factors such as population,economic condition and social environment of the unit.The natural disaster risks at urban land use unit obtained with a risk matrix were divided into 5 types,of which the one with high damage risk and social vulnerability should be paid great attention.The base for urban land use unit based risk assessment is a properly organized data set,generally better assessment result can be obtained by improving the resolution of land use data.

关 键 词： 城市用地单元 灾损风险 社会脆弱性 风险矩阵 综合风险评估

领　　域： [环境科学与工程]