豫西旱作区农业水资源分析及调控途径  

Analysis and regulating measures of agricultural water resources in arid crop areas of western Henan province

作　　者：王林生[1] 李丽[1] 张要战 

机构地区：[1]洛阳农业高等专科学校农学系,河南洛阳471003 [2]洛阳市园林科学研究所,河南洛阳471001

出　　处：《洛阳农业高等专科学校学报》2002年第3期170-172,共3页Journal of Luoyang Agricultural College

摘　　要：豫西旱作区农业水资源严重匮乏 ,年降水量偏少 ,季节分布不均 ,年际变率大 ,干旱灾害频繁 ,且持续时间长。水资源短缺已成为制约豫西旱作区农业可持续发展的关键因素。在分析豫西旱作区农业水资源面临问题的基础上 ,探讨了旱作农业抗旱节水的有效途径 :选用耐旱作物和抗旱节水品种 ;采用各种抗旱节水农技措施 ;推广降雨集存技术、节水灌溉及化学抑蒸技术。Water resources are seriously insufficient,annual precipiation is fewer and unbalanced in different seacons,annual gradient has larger change,drought frequently appears and lasts for a long time,insufficiency of water resources has been a major factor that constraints the sustainable development of agriculture in arid crop areas of western Henan province.To overcome drought,water shortage unfavourable conditions etc.,it is neccessary to investigate effective drought-resistant and water-saving measures to protect water resources:applying drought-resistant crops,cultivars;popularizing techniques of rainwater harvesting,water-saving irrigating and chemical restrained evaporation.

关 键 词：豫西旱作区 农业 水资源 调控途径 

分 类 号：F323.213[经济管理—产业经济]