摘要
根据甘肃省石羊河流域及周边的 17个站近 5 0年的观测资料 ,应用 1998年FAO灌溉排水丛书第 5 6分册最新推荐的Penman-Monteith公式计算各站历年参考作物蒸发蒸腾量ET0 ,分析了海拔高度与ET0 的相关性。石羊河流域ET0 值空间变化比较大 ,从山区到绿洲平原ET0 多年平均值呈递增趋势。同时借助地理信息系统软件MapGIS6 .5和Arcview3.1建立了石羊河流域参考作物蒸发蒸腾量的空间分布式模型 ,本研究只考虑了海拔高度对参考作物蒸发蒸腾量的空间分布的影响 。
Based on the meteorological data collected from 17 stations in recent 50 years in Shiyang River Basin, the reference crop evapotranspiration(ET_0) was calculated with the Penman-Monteith equation recommended by FAO in 1998. The correlation of altitude with ET_0 was analyzed. Spatial variation of ET_0 was obvious and the value increased from mountainous area to oasis plain in Shiyang River Basin. Spatial distributed model of reference crop evapotranspiration in Shiyang River Basin was obtained with MapGIS6.5 & Arcview3.1. In this study, only the impact of altitude on spatial distribution of reference crop evapotranspiration was considered, the radiation and temperature on hillside were not adjusted yet.
出处
《沈阳农业大学学报》
CAS
CSCD
2004年第5期432-435,共4页
Journal of Shenyang Agricultural University
基金
国家自然科学基金项目 (90 2 0 2 0 0 1 )
国家自然科学基金重点项目 (50 3390 30 )
教育部科学技术研究重点项目 (重点 0 2 0 75)
