关键词: 大豆, 干旱, 灾害风险, 区划

Abstract: Based on the observed climate data of 118 stations from 1981 to 2014,the soybean data of 4 agrometeorological observation stations and soybean planting area, beans planting area,cultivated area and irrigation area of 118 counties from 2000 to 2010 in Henan province, thesoybean drought risk was zoned in Henan province by using drought grade index and natural disaster risk index. The results showed that the high risk regions of soybean drought in Henan provincemainly distributed in most of Zhoukou, the east of Shangqiu, Xinxiang and the west of Puyang. The highest drought exposure of soybean in Henan province was mainly distributedin Yongcheng of Shangqiu,followed by western Henan, southeastern Henan, southwestern Henan and Changyuan. The regions with strong soybeandrought tolerance in Henan province were mainly located in the north, the east of Henan, and the parts of southHenan, while those weak regions were the mountain areas of westHenan, southwest Henan, and the areas of Xinmi, Fangcheng. The comprehensive risk distribution of soybean drought in Henan province was higher in the west than in the east, and higher in the south than in the north. In general, except the western mountainous areas, the higher drought risk of soybean were in the large soybean planting areaslike most part of Zhoukou, the east of Shangqiu, the east of Nanyang, Changyuan of Xinxiang, parts of Fanxian in Puyang; While the soybeandrought risk relatively low in the most parts of northHenan, south Henan, and Kaifeng, Luohe, Zhumadian, small parts of Shangqiu.The high comprehensive soybean drought risk areas, the soybean production should strengthen scientific and technological research and pay more attention to soybean drought disaster prevention and mitigation.

Key words: soybean, drought, disaster risk, regionalization