Spatial Distribution of Reference Crop Evapotranspiration in Shiyang River Basin
Spatial Distribution of Reference Crop Evapotranspiration in Shiyang River Basin
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发表时间：
2004
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通讯作者：
Tong Ling
中科院分区：
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作者：
Tong Ling
根据石羊河流域17个测站近50年的气象资料，采用联合国粮农组织（FAO）1998年推荐的Penman-Monteith公式计算了参考作物蒸散量（ET 0）。分析海拔高度与ET 0的相关性。石羊河流域ET 0的空间变异明显，从山区到绿洲平原ET 0值逐渐增大。利用MapGIS6.5 Arcview3.1建立了石羊河流域参考作物蒸散量的空间分布模型。本研究仅考虑了海拔高度对参考作物蒸散量空间分布的影响，未对希尔赛德上的辐射和温度进行调整。
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.