TY - Chinese Journal of Agrometeorology A1 - LI Fen,ZHANG Jian xin,YAN Yong gang,JIA Li dong,WANG Xu dong,LI Qiu ping T1 - Temporal and Spatial Distribution of First Frost and Its Abrupt Change in Shanxi Province Last 50 Years Y1 - 2012-08-27 11:15:44.867 JF - Chinese Journal of Agrometeorology JO - Chinese Journal of Agrometeorology SP - 448 EP - 456 VL - 33 IS - 03 UR - {https://zgnyqx.ieda.org.cn/EN/10.3969/j.issn.1000-6362.2012.03.020} N1 - 10.3969/j.issn.1000-6362.2012.03.020 ER -