水稻是四川的四大粮食作物之一,常年产量约占粮食总产的一半。但是,春夏伏旱交错的盆地中部、有时夏旱频率高达60%,常因夏旱严重影响水稻适时栽插和栽插面积,造成少栽减产,迟栽低产,极大地制约着盆中粮食生产的稳定发展。历年因旱缺水栽插的稻田,主要有两种:一是“有水关冬,无水 Rice is one of the four major food crops in Sichuan, with perennial output accounting for about half of the total grain output. However, in the middle of the basin where spring and summer drought staggered, sometimes the frequency of summer drought is as high as 60%, often due to the severe drought affecting the timely planting and planting area of ​​rice, resulting in less planting and yielding and late planting and low yield, greatly limiting the grain production in the basin The steady development. Over the years due to drought and water-filled rice fields, there are two main: First, "water off the winter, anhydrous