江苏省水稻灌溉需水量空间分布规律研究  

Spatial Distribution of Irrigation Water Demand of Rice in Jiangsu Province

作　　者：罗玉峰[1] 张亚东[1] 韩冰 王卫光[1] 缴锡云[1] 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [2]辽宁省水土保持局,辽宁沈阳110003

出　　处：《水电能源科学》2014年第11期27-30,75,共5页Water Resources and Power

基　　金：国家自然科学基金项目(51179048);水利部公益性行业科研专项经费项目(201301014);江苏高校优秀科技创新团队项目

摘　　要：水稻灌溉需水量的时空分布是科学制定不同地区灌水定额和灌溉管理策略的主要依据。基于江苏省13个气象站及周边省市4个气象站近50年逐日的气象资料,采用FAO推荐的Penman-Monteith方法,计算了水稻全生育期内的灌溉需水量,并利用GIS的空间分析功能,通过反距离权重插值法得到水稻灌溉需水量空间分布图。结果表明,江苏省水稻灌溉需水量空间差异悬殊,多年平均值介于223.4~669.7mm/季,总体表现为由南至北、由东至西递增的分布格局。Temporal and spatial distribution characteristics of irrigation water demand are the basis for determining the irrigation quota and irrigation management strategies in different areas.Based on the daily meteorological data over the past 50 years from weather stations in Jiangsu Province and 4stations in the surrounding provinces,irrigation water demand of rice within the growing period were estimated by using FAO Penman-Monteith equation.The spatial distribution of irrigation water demand of rice in Jiangsu Province was mapped using the inverse distance weighted in the ArcGIS environment.The results show that spatial distribution of irrigation demand of rice in Jiangsu Province has disparities,and the average for many years was between 223.4-669.7mm per season.The overall average increased from south to north and from east to west.

关 键 词：水稻 作物需水量 灌溉需水量 空间分布 江苏省 

分 类 号：TV213.4[水利工程—水文学及水资源] S27[农业科学—农业水土工程]