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基于日本第四纪琉球灰岩(琉球群岛的一个主要含水层)地区的自然和社会环境,70年代早期提出地下水坝的概念,以开发该地区的地下水资源。将近30年的工作实践说明地下水坝是该地区开发地下
Based on the natural and social environment of the Quaternary Ryukyu Limestone, a major aquifer in the Ryukyu Islands, the concept of underground dams was proposed in the early 1970s to develop groundwater resources in the area. Nearly 30 years of work practice shows that underground dams are developed underground in the area