Temporal and Spatial Variation Analysis of the Main Extreme Climate Index inHebei Province
CAO Xiang hui，LONG Huai yu，ZHANG Ji zong，LEI Qiu liang，WU Shu xia，LIU Hong bing
Chinese Journal of Agrometeorology . 2015, (03): 245 -253 .  DOI: 10.3969/j.issn.1000-6362.2015.03.001