论文部分内容阅读
天津市的地下输水管道灌溉工程是随着农业节水工作的深入开展,逐渐发展起来的。天津市水资源严重不足。工业和城市人民生活用水随着引滦入津工程的建成暂时得到缓解。农业方面,虽然兴建了一些中小型地面蓄水工程拦蓄本地降雨径流和汛期上游弃水,一般蓄水很少;开采地下水,由于连年超量开采,造成地下水位大幅度下降。目
Tianjin underground water pipeline irrigation project is with the deepening of agricultural water-saving work, and gradually developed. Tianjin City, a serious shortage of water resources. The water for industrial and urban people’s living was temporarily alleviated with the completion of the Luan River Water Transfer Project. In agriculture, although some small and medium-sized groundwater storage projects have been constructed to save local rainfall runoff and upstream abandoned water in flood season, there is little water storage in general. Groundwater exploitation has caused a drastic drop in groundwater level due to over-exploitation in successive years. Head