基于改进权重湿润指数的东北地区春玉米涝渍灾害评估方法

刘聪,武永峰,刘平辉,梁立江

Evaluation Method of Spring Maize Waterlogging Disaster in Northeast China Based on Improved Weight Moist Index

LIU Cong,WU YongFeng,LIU PingHui,LIANG LiJiang

表3 基于改进权重湿润指数的东北地区春玉米各生育阶段涝渍强度等级

Table 3 Grading of spring maize waterlogging at different stages in Northeast China based on IWMI

生育阶段 Developmental stage 涝渍强度等级 Waterlogging grade 无涝渍 No waterlogging 轻度 Light 中度 Moderate 重度 Severe 初始生长期Initial growth period ≤0.75 （0.75,1.50] (1.50,2.55] >2.55 快速发育期Rapidly developmental period ≤1.15 （1.15,1.95] (1.95,2.90] >2.90 生育中期Middle period ≤1.25 （1.25,2.10] (2.10,2.95] >2.95 生育后期End period ≤1.25 （1.25,2.10] (2.10,3.00] >3.00