Variation of Drought Characteristics and its Agricultural Exposure in North China Plain
CHEN Jing,LIU Hong-bin,WANG Yan-jun,WANG An-qian,SU Bu-da,JU Hui
Chinese Journal of Agrometeorology . 2016, (05): 587 -599 .  DOI: 10.3969/j.issn.1000-6362.2016.05.011