现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2012年
4期
22-22,28
,共2页
蒸发量%变化特征%山东济阳
蒸髮量%變化特徵%山東濟暘
증발량%변화특정%산동제양
evaporative capacity%variation characteristics%Jiyang Shandong
利用济阳县1965—2010年20 cm口径蒸发量资料,对济阳县46年蒸发量变化特征进行分析。结果表明：济阳县的蒸发量呈逐年减少趋势,减少幅度为1.48 mm/10 a,蒸发量在20世纪80年代初期呈明显变化,之前蒸发量基本都在平均值以上,之后蒸发量基本都在平均值以下,2个时段的平均差值为424.8 mm;春、夏、秋、冬各季节蒸发量均有减少,但减少的倾向率不同,主要与光照、气温和降水等气象要素有关。
利用濟暘縣1965—2010年20 cm口徑蒸髮量資料,對濟暘縣46年蒸髮量變化特徵進行分析。結果錶明：濟暘縣的蒸髮量呈逐年減少趨勢,減少幅度為1.48 mm/10 a,蒸髮量在20世紀80年代初期呈明顯變化,之前蒸髮量基本都在平均值以上,之後蒸髮量基本都在平均值以下,2箇時段的平均差值為424.8 mm;春、夏、鞦、鼕各季節蒸髮量均有減少,但減少的傾嚮率不同,主要與光照、氣溫和降水等氣象要素有關。
이용제양현1965—2010년20 cm구경증발량자료,대제양현46년증발량변화특정진행분석。결과표명：제양현적증발량정축년감소추세,감소폭도위1.48 mm/10 a,증발량재20세기80년대초기정명현변화,지전증발량기본도재평균치이상,지후증발량기본도재평균치이하,2개시단적평균차치위424.8 mm;춘、하、추、동각계절증발량균유감소,단감소적경향솔불동,주요여광조、기온화강수등기상요소유관。
Based on the dates of evaporative capacity with 20 cm diameter in Jiyang County from 1965 to 2010,this paper analyzed the evaporative capacity characteristics.The results showed that evaporative capacity of Jiyang County was decreasing year after year,the average descending range was 1.48 mm per 10 years.There was notable changes of evaporative capacity in the 80s of 20th century.Before 1980 s,the evaporative capacity was higher than average value.After 1980 s,the evaporative capacity was less than average value,and the average difference between this time periods was 424.8 mm.The evaporative capacity were decreasing in spring,summer,autumn and winter.Its decreasing propensity was different,which was closely related to the meteorological factors such as sunlight,temperature,precipitation and so on.
