期刊论文

中文

长江流域资源与环境

1004-8227

2002

11

3

291-295

10.3969/j.issn.1004-8227.2002.03.019

湖南省自然科学基金 99JJY2 0 0 19； 国家攻关项目 （95 -0 0 1-0 1-0 6）资助；

本校为第一机构

自然灾害灾情是灾害系统的脆弱性和致灾因子的风险性共同作用的结果.在同一致灾强度下, 灾情随脆弱性的增强而加重, 降低灾害脆弱性可减轻灾害造成的直接经济损失, 因此灾害脆弱性的研究对防灾抗灾具有重要的意义.衡阳市是湖南省重要的农业生产基地之一, 也是洪涝灾害较重地区之一.灾害损失与衡阳市农业洪涝灾害脆弱性密切相关 ,这种脆弱性是自然因素和人为因素在一定的时空条件下耦合的产物.分析了汛期降水和暴雨、植被和土壤、水利设施、经济发展水平等因素在洪涝灾害脆弱性形成中的作用.依据长时间序列的气象资料和经济统计数据,运用数学模型和有关优化分析方法, 对衡阳市农业洪涝灾害脆弱性...

Disastrous conditions result from not only the vulnerability of disaster system but also the risk of hazards.The disastrous conditions are sharpened along with the strengthened vulnerability of disaster system at the same degree of disaster.Reducing the vulnerability of disaster system can cut down the straight economic loss.So studying the vulnerability of disaster system in a special region has important meaining on defending and resisting the disaster.Hengyang which is an important agricultural base is an severe flood waterlogging area.The disastrous loss of Hengyang is tightly correlated w...