【作者】 佟玲； 康绍忠； 杨秀英； 粟晓玲；

【Author】 TONG Ling, RANG Shao - zhong ,et al.(Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministryof Education, Northwest Sci - Tech University of Agriculture and Forestry, Yangling Shaanxi 712100, China;Center for Agricultural Water Research in China, China Agricultural University, East Campus, Beijing, 100083)

【机构】 西北农林科技大学旱区农业水土工程教育部重点实验室； 甘肃省武威市水利科学研究所；

【摘要】 根据甘肃省石羊河流域及周边的17个站近50年的观测资料,应用1998年FAO灌溉排水丛书第56分册最新推荐的Pen-man-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,暂未对坡地上的辐射及温度进行校正。更多还原

【Abstract】 Based on the meteorological data collected from 17 stations in recent 50 years in Shiyang River Basin, the reference crop evapotranspiration (ET0) was calculated with the Penman - Monteith equation recommended by FAO in 1998. The correlation of altitude with ET0 was analyzed. Spatial variation of ET0 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.更多还原