中国北方地区50年来最高和最低气温变化及其影响
王菱, 谢贤群, 苏文, 郭学兵
Changes of maximum and minimum temperature and their impacts in northern China over the second half of the 20th century
WANG Ling, XIE Xian-qun, SU Wen, GUO Xue-bing
自然资源学报 . 2004, (3): 337 -343 .  DOI: 10.11849/zrzyxb.2004.03.010