摘要
为发展节水农业,制定农田节水政策,进一步提高农田灌溉水有效利用系数提供理论依据,对以江西省近几年2008-2013年农田灌溉水有效利用系数测算分析成果进行总结为对象。通过分析不同灌区规模、灌溉水源类型、土壤、管理水平、节水灌溉工程对灌溉水有效利用系数的影响,并且分析不同年份间农田灌溉水有效利用系数的变化规律。结果表明,灌区规模越大,农田灌溉水有效利用系数越小;提水灌区大于自流引水灌区;土壤渗漏强度大,农田灌溉水有效利用系数越低;灌区渠道防渗一定程度能提高农田灌溉水有效利用系数,但总体提高幅度不是很大;灌区管理机构比较完善,管理资金和农业水费落实到位,有助于提高农田灌溉水有效利用系数;2008-2013年间农田灌溉水有效利用系数呈逐年增长趋势,但后期增速缓于前期。
In order to know the effect of district scale, source types of irrigation water, soil, management level and water-saving irrigation project on the effective utilization coefficient of irrigation water, and conclude the variation tendency of effective utilization coefficient between various years, the data of effective utilization coefficient of Jiangxi Province from 2008 to 2013 were analyzed. The results showed that the larger the district scale, the smaller the coefficient. And it was larger than the coefficient of artesian water diversion irrigation district to lifting water irrigation district. The larger the soil seepage intensity, the smaller the coefficient. The results indicated that seepage prevention could increase the coefficient to some extent while the increased range was not large in the mass. Perfect managing institute, abundant managing funds, and timely agricultural water charges help to improve the effective coefficient of irrigation water utilization. The analytical results from 2008 to 2013 showed that the effective utilization coefficient of irrigation water increased year by year, but the growth rate decreased gradually.
出处
《中国农村水利水电》
北大核心
2017年第11期104-106,110,共4页
China Rural Water and Hydropower
基金
江西省水利重大科技项目(KT201319)
关键词
灌溉水有效利用系数
灌区规模
水源类型
节水灌溉
管理水平
effective coefficient of irrigation water utilization
district scale
water source type
water-saving irrigation
management level
