黄淮海平原的水均衡分析

黄淮海平原是我国最大的一个平原,面积三十万平方公里,耕地占全国总耕地面积的六分之一。这里地处温暖带半湿润区,气候资源丰富,适合麦、棉、玉米、大豆等多种作物生长,一年两熟或二年三熟,且地形平坦,土层深厚,工农业和交通发达,是我国重要的农业区。但是,春旱夏涝,土地盐碱和地下咸水严重影响了这个地区农业生产的发展。黄淮海平原上普遍存在的旱涝碱咸,是半湿润季风气候和堆积平原的地学条件下水分运

A STUDY ON THE WATER BALANCE IN HUANG-HUAI-HAI PLAIN

Huang-Huai-Hai Plain is one of the biggest plain and the most im portant agricultural regions in our country.Because of the influence of monsoonal climate,the movement of water is provided with peculiar characters-drought,water-logging,salinization of soil and mineraliza- tion of ground water.All these factors limit the develoment of agricul- ture seriously.The study on the water movement and balance is an important problem if we want to control them. The first part of this paper presents the functional mod...