CAJ | 학술논문

选取互补相关蒸发模型估算了山东省17个气象站1961-2008年的陆面实际蒸发量，采用统计分析、相关分析和 Mann - Kendall 非参数检验等方法分析了该时段实际蒸发量的变化特征。结果表明：山东省多年平均陆面实际蒸发量为586.7 mm，年内呈单峰型变化，峰值出现在7月份；年际变化呈稳定下降趋势，在1991年左右发生突变，之后下降速度加快，该趋势与夏、秋季变化特征一致，而与春、冬季变化特征相反；就空间而言，山东省陆面实际蒸发量由东南沿海向西北内陆逐步减少，中部地区存在一条高蒸发带。
선취호보상관증발모형고산료산동성17개기상참1961-2008년적륙면실제증발량，채용통계분석、상관분석화 Mann - Kendall 비삼수검험등방법분석료해시단실제증발량적변화특정。결과표명：산동성다년평균륙면실제증발량위586.7 mm，년내정단봉형변화，봉치출현재7월빈；년제변화정은정하강추세，재1991년좌우발생돌변，지후하강속도가쾌，해추세여하、추계변화특정일치，이여춘、동계변화특정상반；취공간이언，산동성륙면실제증발량유동남연해향서북내륙축보감소，중부지구존재일조고증발대。
Based on the complementary relationship of evapotranspiration model,actual evapotranspiration of 17 meteorological stations in the Shan-dong Province was estimated for the period 1961-2008. Variation characteristics were further investigated by using the methods of statistical analy-sis,correlation analysis and Mann-Kendall trend test. The results show that the annual average actual evapotranspiration of the Shandong Province is about 586. 7 mm;the curve of seasonal actual evapotranspiration variation presents a single-peaked pattern with the maximum value in July;the trend of inter-annual variation is decreasing steadily,it is found that there is a step change of annual actual evapotranspiration occurred in 1991,af-ter which the decreasing rate is much bigger than that before;the decreasing trend is consistent with that in summer and autumn,but opposite in spring and winter;spatially,the actual evaportranspiration decreases gradually from coastal area to the inland,and a high evaportranspiration strip exists in the midland.