灌溉排水学报2025，Vol.44Issue(4)：65-71,7.DOI:10.13522/j.cnki.ggps.2024300
江汉平原小麦渍害精细化风险评估
Waterlogging risk assessment for wheat cultivation in the Jianghan Plain region
摘要
Abstract
[Objective]Drought and waterlogging are two major abiotic stresses that hinder crop growth worldwide.Understanding their spatiotemporal variation in a region is crucial for mitigating their detrimental impacts and safeguarding food production.This study proposes a method to assess waterlogging risk and applies it to wheat cultivation in the Jianghan Plain of Central China.[Method]The proposed assessment method is based on soil moisture and the waterlogging index(WI).Using daily soil-surface moisture data from 2000 to 2020 across the basin,we calculated the WI,considering the differences in waterlogging tolerance among wheat varieties,their growing stages,and the influence of soil temperature on the waterlogging threshold.[Result]From 2000 to 2020,the altitude of different areas in the plain was significantly negatively correlated with the average WI,with a correlation coefficient of-0.83.Precipitation in April was identified as a key factor influencing the WI.Areas with high waterlogging risk include Jingzhou District,Jianli City,Qianjiang City,Hanchuan City,Jiangling County,Xiantao City,Tianmen City,Zhijiang City,Dangyang City,and Hanyang District.Conversely,areas with low waterlogging risk include Zhongxiang City,Shayang County,Jingshan City,Jingmen City,and Yingcheng City.The critical threshold for wheat waterlogging in the plain was found to be WI=10.97.[Conclusion]The method developed for assessing waterlogging risk offers an improvement over existing approaches.Its application to wheat production in the Jianghan Plain,with a spatial resolution of 1 km2,can assist in the development of effective mitigation strategies to safeguard wheat production in various areas of the plain.关键词
受渍程度指数/小麦渍害/气象产量/江汉平原/风险评估Key words
waterlogging index/wheat waterlogging/meteorological yield/Jianghan Plain/waterlogging risk assessment分类
农业科学引用本文复制引用
李励漫,李芬,许福丽,邓超众,向前,熊勤学..江汉平原小麦渍害精细化风险评估[J].灌溉排水学报,2025,44(4):65-71,7.基金项目
国家自然科学基金项目(31871516) （31871516）
