赣东北低丘红壤坡地浅层地下水活动规律研究

对赣东北地区 (进贤、东乡、临川、余江 )低丘红壤坡地浅层地下水位的周年变化规律、水质情况及旱季供水能力等进行了系统研究。研究结果表明 ,这一地区的浅层地下水位平均为 4.3 8m ,3～ 8月为高水位期 (平均水位 3 .42m) ,9月至次年 2月为低水位期 (平均水位 5.3 5m) ,水质呈酸性 ,硝态氮含量较高。降水量、地形、地质等因素对地下水位有十分明显的影响。旱季打井提水 ,只要井深达到贮水层 (砂卵石层 ) ,一般水量充足 ,可满足旱季果园灌溉需求。

Study on Moveable Regularity of Shallow Subsurface Water in Low Hilly Red Soil Region of Northeast Jiangxi

The author systematically studied the moveable regularity of shallow subsurface water in low hilly red soil region of northeast Jiangxi (Jinxian, Dongxiang,Linchuan and Yujiang), the results were as follows :the average water table level was 4.38m;the water level was high (3.42m) from March to August, and it was low (5.35m) from September to February of the next year; the subsurface water was acidic, and contained much NO+ -N -3; rainfall, elevation and soil texture had very obvious influence on the water table level; in dry season, the well whose bottom had reached to the aquifer (gravel-pebble stratum) generally had plenty of water for the irrigation of orchard.;