关键词: 自然灾害, 农户, 贫困, 脆弱性

Abstract: The natural disasters will make a great impact on farmers who live mainly on agricultural production.Sometimes, the frequently-occurring disasters will be one of the main factors leading to farmers' poverty or re-poverty.To study the influence degree of natural disasters on farmer households' poverty and vulnerability, and find out the main factors resulting in farmers' poverty, the factor analytic method and the principal components analytic method are utilized to make a quantitative analysis of 16 state cities' cross-section data of Yunnan province in 2009.The results show that the geographical environment is the main factor affecting farmers' vulnerability:poverty vulnerability in the northern part of Yunnan is obviously higher than that of the southern part, and vulnerability in high altitude area is also correspondingly high.At the safeguard level:vulnerability is higher in the areas with weak economic strength and imperfect security system.According to the actual situation of Yunnan province, some proposals are supplied:according to vulnerability differences in different places, the government should expand the building of infrastructural facilities, develop economy in the backward areas, raise the local safeguard level, strengthen various cities' ability to resist natural disasters, and reduce disaster's risk.

Key words: natural disasters, farmer household, poverty, vulnerability