1960-2009年横断山区潜在蒸发量时空变化(英文)

编号 zgly0001585738

文献类型 期刊论文

文献题名 1960-2009年横断山区潜在蒸发量时空变化(英文)

作者 朱国锋  何元庆  蒲焘  王旭峰  贾文雄  李宗省  辛惠娟 

作者单位 StateKeyLaboratoryofCryosphereSciences  YulongSnowMountainGlaciersandEnvironmentalObser-vationStation  ColdandAridRegionsEnvironmentalandEngineeringResearchInstitute  CAS  GraduateUniversityofChineseAcademyofSciences  ResearchSc 

母体文献 Journal of Geographical Sciences 

年卷期 2012年01期

年份 2012 

分类号 P426.2 

关键词 potentialevapotranspiration  Splineinterpolation  Penman-Monteithmodel  spatialandtemporalvariations  HengduanMountains 

文摘内容 Based on the meteorological data of 20 stations in the Hengduan Mountains region during 1961-2009, the annual and seasonal variation of potential evapotranspiration was analyzed in combination with the Penman-Monteith model. With the method of Spline interpolation under ArcGIS, the spatial distribution of potential evapotranspiration was presented to research the regional difference, and the correlation analysis was used to discuss the dominant factor affecting the potential evapotranspiration. The results indicated that the an-nual potential evapotranspiration showed a decreasing tendency since the 1960s, especially from the 1980s to 1990s, while it showed an increasing tendency since 2000. Regional potential evapotranspiration showed a rate of -0.17 mm a?1. Potential evapotranspiration in north, middle and south of the Hengduan Mountains exhibited decreasing trends over the studied period, and its regional trend was on the decline from southwest to northeast.