基于Copula函数的四川水稻关键生育期高温干旱复合事件时空特征分析

蒲长林, 陈东东, 张玉芳, 王晓东, 邹雨伽

Spatio-temporal characteristics of compound high temperature and drought events during critical rice growth periods in Sichuan Province based on the Copula function

PU Changlin, CHEN Dongdong, ZHANG Yufang, WANG Xiaodong, ZOU Yujia

图2 1981—2022年四川省不同水稻种植区孕穗—抽穗期（a、c）、抽穗—成熟期（b、d）逐年高温（a、b）和干旱（c、d）平均强度等级统计

Fig.2 Statistics of annual average intensity grades of high temperature (a, b) and drought (c, d) during the booting-heading (a, c) and heading-maturity (b, d) stages in different rice planting regions of Sichuan Province from 1981 to 2022