基于SPEI的安徽滁州市旱涝特征及其对小麦产量的影响

郁凌华,谢五三,熊世为,张鑫童,邢程,胡姗姗

Characteristics of Drought and Flood Based on SPEI and Its Impact on Wheat Yield in Chuzhou of Anhui Province

Linghua YU,Wusan XIE,Shiwei XIONG,Xintong ZHANG,Cheng XING,Shanshan HU

表1 SPEI旱涝等级划分标准

Tab.1 The classification standard of drought and flood grades based on SPEI

等级 类型 SPEI 等级 类型 SPEI 等级 类型 SPEI 1 极涝 ≥2.00 4 轻涝 0.50~0.99 7 中旱 -1.49~-1.00 2 重涝 1.50~1.99 5 正常 -0.49~0.49 8 重旱 -1.99~-1.50 3 中涝 1.00~1.49 6 轻旱 -0.99~-0.50 9 极旱 ≤-2.00