论文部分内容阅读
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。
The annual variation of shallow groundwater level in the hilly red soil hillslope in the northeastern Jiangxi Province (Jinxian, Dongxiang, Linchuan and Yujiang rivers) was systematically studied. The results show that the average depth of shallow groundwater in this area is 4.3 8m, the period of high water level from March to August (the average water level is 3.42m), the low water level from September to the next February (the average water level is 5.35m) , Acidic water quality, high nitrate content. Precipitation, topography, geology and other factors have a very significant impact on groundwater level. Drilling wells in the dry season to raise water, as long as the well reaches the reservoir (sand and gravel), the general amount of water sufficient to meet the irrigation needs of the orchard in the dry season.