山东农业科学2017，Vol.49Issue(4)：104-111,8.DOI:10.14083/j.issn.1001-4942.2017.04.023
横断山区参考作物蒸散量时空变化分析
Temporal and Spatial Variation Characteristics of Reference CropEvapotranspiration in the Hengduan Mountains
摘要
Abstract
Reference evapotranspiration (ETo) is an important index for evaluating climate drought, vegetation water-consumption.Based on the meteorological data from 31 meteorological stations during 1960-2013 in the Hengduan Mountainous, the reference crop evapotranspiration was calculated with the Penman formula recommended by FAO.And then, the evapotranspiration sequence of 31 stations was set up to analyze the temporal and spacial changing trend of evapotranspiration in the Hengduan Mountainous by using linear regression method, cumulative anomaly method, multiple stepwise regression analysis and inverse distance interpolation technique based on GIS.The results showed that the reference crop evapotranspiration in the Hengduan Mountainous decreased from south to north.Influenced by temperature rising and decrease of sunshine duration, wind speed and relative humidity, the evapotranspiration of this area increased.The reference crop evapotranspiration gradually reduced from 1960 to 1968, gradually increased from 1968 to 1984, gradually reduced from 1984 to 2004, and gradually increased from 2004 to 2013.The spatial variation tendency of reference crop evapotranspiration was obvious.As for the contribution rate analysis, the decrease of reference crop evapotranspiration in the north research area was largely correlated with the average wind speed;the increase of reference crop evapotranspiration in the south of research area was largely correlated with average sunshine time;and the increase of reference crop evapotranspiration had great relevance with average temperature in the middle of research area.关键词
横断山区/参考作物蒸散量/贡献率/倾向率/时空变化Key words
The Hengduan Mountains/Reference crop evapotranspiration/Contribution rate/Tendency rate/Temporal and spatial variation分类
农业科技引用本文复制引用
申官正,王龙,余航,张素凡,高瑞..横断山区参考作物蒸散量时空变化分析[J].山东农业科学,2017,49(4):104-111,8.基金项目
国家科技支撑计划项目"变化环境下云南横断山脉和云贵高原水文干旱对比研究"(2012BAD4B00) （2012BAD4B00）
公益性行业(水利)科研专项(201001044) （水利）
云南省应用基础计划研究项目(2014FD022) （2014FD022）
