水资源与水工程学报

张波，谷晓平，古书鸿，胡家敏.近55年贵州省潜在蒸散量变化特征及影响因子分析水资源与水工程学报[J].,2017,28(3):20-26

近55年贵州省潜在蒸散量变化特征及影响因子分析

Analysis of variation characteristics and influence factors of potential evapotranspiration in Guizhou province in recent 55 years

DOI：10.11705/j.issn.1672-643X.2017.03.05

中文关键词: 潜在蒸散量 Penman-Monteith公式 GIS 气候因子贵州省

英文关键词:potential evaporation Penman-Monteith formula GIS climatic factor Guizhou province

基金项目:国家自然科学基金项目（41365008）；贵州省山地环境气候研究所院士工作站项目（黔科合院士站（2014）4010号）；贵州省科技基金项目（黔科合J字［2013］2187号）

作者	单位
张波^1,2，谷晓平¹，古书鸿¹，胡家敏¹	1 .贵州省山地环境气候研究所，贵州贵阳 550002； 2.贵州省山地气候与资源重点实验室，贵州贵阳 550002

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中文摘要:

为了解贵州省潜在蒸散的变化特征及影响影子，根据1961-2015年贵州省80个气象观测站的常规观测资料，采用Penman-Monteith公式、回归分析、Mann-Kendall检验分析和GIS空间分析等方法，计算并分析了贵州省潜在蒸散量及其变化特征和影响因子。结果表明：近55年来贵州省ET₀呈下降趋势，空间上总体呈现出南高北低，西高东低，由西南向东北递减的变化趋势；除平均风速外，平均温度、最高温度和相对湿度与ET₀均极显著相关性。

英文摘要:

In order to understand the variation characteristics of potential evapotranspiration and influence factors in Guizhou province, Penman-Monteith formula, regression analysis, Mann-Kendall test analysis and GIS spatial analysis were used according to the conventional observation data of 80 meteorological observatories in Guizhou province from 1961 to 2015, and the potential evapotranspiration and its variation characteristics and influence factors in Guizhou province were calculated and analyzed.The results showed that the ET₀ of Guizhou Province had a decreased trend in the past 55 years. The spatial distribution of the South was higher than the north, the West higher than the East, and it decreased from southwest to northeast. The mean temperature, maximum temperature and relative humidity were significantly correlated with ET₀ except the mean wind speed.

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