一种基于累积降水与累积蒸发的气象干旱指数

潘永地, 肖晶晶, 潘彦华, 石界

A meteorological drought index based on cumulative precipitation and cumulative evaporation

PAN Yongdi, XIAO Jingjing, PAN Yanhua, SHI Jie

表2 基于土壤干土层厚度的干旱等级划分

Tab.2 Classification of drought grades based on dry soil layer thickness

干土层厚度（H）/cm 干旱等级 H<5 无旱 5≤H<10 轻旱 10≤H<15 中旱 15≤H<20 重旱 H≥20 特旱