近55年来河西地区季节开始日及长短变化特征

张克新, 刘普幸, 张锐, 霍华丽, 曹立国

Analysis of four seasons and their length changes in Hexi area in recent 55 years

ZHANG Ke-xin, LIU Pu-xing, ZHANG Rui, HUO Hua-li, CAO Li-guo

地理研究 . 2011, (3): 547 -554 . DOI: 10.11821/yj2011030016