CAJ | 학술논문

利用寿县气候观象台2007年10月～2008年9月地表反射率观测资料,分析了农田地表反照率的季节变化,对比了小麦和水稻在不同生长期的平均反照率,讨论了天气状况和天气过程对反照率的影响.结果表明,在小麦和水稻的生长期内,地表反照率变化相似,均先增大后减小.在作物生长初期,水稻田平均反照率低于小麦田反照率约0.02;中期时,两者相近;成熟后,水稻反照率高于小麦反照率约0.04.降水过后,晴空地表反照率减小.
이용수현기후관상태2007년10월～2008년9월지표반사솔관측자료,분석료농전지표반조솔적계절변화,대비료소맥화수도재불동생장기적평균반조솔,토론료천기상황화천기과정대반조솔적영향.결과표명,재소맥화수도적생장기내,지표반조솔변화상사,균선증대후감소.재작물생장초기,수도전평균반조솔저우소맥전반조솔약0.02;중기시,량자상근;성숙후,수도반조솔고우소맥반조솔약0.04.강수과후,청공지표반조솔감소.
Based on the surface albedo measured from October 2007 to September 2008 at the Shouxian National Climate Observatory, the seasonal variations of farmland albedo are analyzed, the average wheat albedo and rice al-bedo in each growth stage are compared, and the effects of different weather condition and weather process on albedo are discussed.The results show that the variations of wheat albedo and rice albedo have broadly the same type that both increase to a relatively high level and then decrease. In the early growth stage, the average rice albedo is lower than that of wheat by 0.02, while the two values are approximately equal in the middle growth stage, but the former becomes higher than the latter by 0.04 when the two crops are mature.After precipitation, diurnal surface albedo under clear sky is less than that observed before the weather process.