干旱区研究
1961-2010年河北省日照变化分析
向亮, 胡波, 谷永利
Analysis on Change of Sunshine Duration in Hebei Province during the Period from 1961 to 2010
XIANG Liang, HU Bo, GU Yong-Li
干旱区研究 . 2012, (3): 503 -509 .