河南省农业综合抗旱能力分析与区划  

Comprehensive agricultural drought-resistant capability of Henan Province:Analysis and regionalization

作　　者：李树岩[1,2] 刘荣花[1,2] 成林[1,2] 方文松[1,2] 

机构地区：[1]河南省气象科学研究所,郑州450003 [2]中国气象局农业气象保障与应用技术重点开放实验室,郑州450003

出　　处：《生态学杂志》2009年第8期1555-1560,共6页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(40875071);公益性行业(气象)科研专项项目(GYHY200806008);中国气象局新技术推广资助项目(CMATG2005M37)

摘　　要：干旱是河南最主要的农业气象灾害。本文根据河南省20世纪90年代以来的农业、水利、土壤等资料,构建了河南省农业综合抗旱能力评价的指标体系,在此基础上,构建农业综合抗旱指数,并对全省农业综合抗旱能力进行了区划。结果表明:灌耕比、单位灌溉面积机电井数、土壤有效保水系数、农机动力系数等4个因子可以作为全省农业综合抗旱能力评价的指标;全省农业综合抗旱能力可以划分为高、中、低值区,其中,高值区主要分布在豫中、豫北的大部分地区;中值区比较分散,主要包括中西部低丘、缓岗区,平顶山东部、驻马店及信阳西南部,开封东部-商丘地区,林州-辉县县区;低值区又可分为2个小区,主要包括三门峡、洛阳中西部及南阳地区,信阳中部及东部。Drought is the most important agricultural meteorological disaster in Henan Province. Based on the relevant data of agriculture, water conservancy, and soil since the 1990s, an index system was built for the evaluation of the comprehensive agricultural drought-resistant capability of the Province, and a comprehensive index was used for the regionalization of the capability. The ratio of irrigated area to cultivated area, the number of electromechanical wells per each effective irrigational unit, the coefficient of soil available retaining water, and the coefficient of agricultural machine＇ s power were the available indices for the evaluation of the comprehensive capability of agricultural drought-resistance. According to these indices, the comprehensive capability of agricultural drought-resistance in the whole area of Henan was classified into three classes, i. e. , high, moderate, and low. The high capability region included most middle and north areas of Henan ; moderate capability region distributed more scattered, including low hilly regions in west and middle Henan, east region of Pingdingshan, southwest region of Zhumadian and Xinyang, the region from east Kaifeng to Shangqiu, and most regions of Linzhou and Huixian ; while low capability region could be further classified into two sub-regions, one included Sanmenxia and the west and middle Luoyang and Nanyang, and the other included the east and middle Xinyang.

关 键 词：农业抗旱能力 综合评价 区划 

分 类 号：S423[农业科学—植物保护]