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1、生态学杂志ChineseJournalofEcology2009,28(8):1555-15603河南省农业综合抗旱能力分析与区划1,21,2331,21,2李树岩刘荣花成林方文松12(河南省气象科学研究所,郑州450003;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)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
2、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。关键词农业抗旱能力;综合评价;区划中图分类号S423文献标识码A文章编号1000-4890(2009)08-1555-06Comprehensiveagriculturaldrought2resist
3、antcapabilityofHenanProvince:Analysisand1,21,21,21,21regionalization.LIShu2yan,LIURong2hua,CHENGLin,FANGWen2song(Henan2InstituteofMeteorologicalScience,Zhengzhou450003,China;KeyLaboratoryofAgrometeoro2logicalSafeguardandAppliedTechnique,ChinaMeteorologicalAdministration,Zheng
4、zhou450003,China).ChineseJournalofEcology,2009,28(8):1555-1560.Abstract:DroughtisthemostimportantagriculturalmeteorologicaldisasterinHenanProvince.Basedontherelevantdataofagriculture,waterconservancy,andsoilsincethe1990s,anindexsystemwasbuiltfortheevaluationofthecomprehensive
5、agriculturaldrought2resistantcapabilityoftheProvince,andacomprehensiveindexwasusedfortheregionalizationofthecapability.Theratioofirrigatedareatocultivatedarea,thenumberofelectromechanicalwellspereachef2fectiveirrigationalunit,thecoefficientofsoilavailableretainingwater,andthe
6、coefficientofag2riculturalmachine’spowerweretheavailableindicesfortheevaluationofthecomprehensiveca2pabilityofagriculturaldrought2resistance.Accordingtotheseindices,thecomprehensivecapa2bilityofagriculturaldrought2resistanceinthewholeareaofHenanwasclassifiedintothreeclas2ses,
7、i.e.,high,moderate,andlow.ThehighcapabilityregionincludedmostmiddleandnorthareasofHenan;moderatecapabilityregiondistributedmorescattered,includinglowhillyregionsinwestandmiddleHenan,eastregionofPingdingshan,southwestregionofZhumadianandXin2yang,theregionfromeastKaifengtoShang
8、qiu,andmostregionsofLinzhouandHuixian;whilelowcapabilityregioncouldb
