期刊论文

中文

自然灾害学报

1004-4574

2002

11

4

78-83

10.3969/j.issn.1004-4574.2002.04.013

国家自然科学基金资助项目(40101007) 湖南省***基金资助项目(01JZY2102)

本校为第一机构

旱灾是湖南省农业特别是粮食生产可持续发展的严重制约因素。在同一致灾强度下，灾情随灾害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，因此农业旱灾脆弱性的研究对湖南省减灾和农业可持续发展具有特别重要的意义，湖南省自然生态环境和社会经济状况各异，农业旱灾脆弱性各地不同，选择降水量，蒸发量，水利化程度等9个指标综合评价了各个县市的旱灾脆弱性，并利用GIS技术进行旱灾脆弱性区划，结果表明，湘中衡邵盆地和湘西北山地是农业旱灾严重脆弱带，湖南山地区为强度旱灾脆弱带，沅麻盆地山地区为中度旱灾脆弱带，洞庭湖平原和湘东北山地旱灾脆弱性较小。

Agricultural drought has already restricted severely the sustainable development of agricultural economy especially secure food supplies. The disastrous conditions are sharpened along with the strengthened vulnerability of disaster system at the same degree of disaster. And reducing the vulnerability of disaster system can cut down the direct economic loss. So research on the vulnerability of agricultural drought in Hunan has important meaning on resisting the disaster and insuring sustainable developments of agricultural economy. Natural envir...