日本非传统水源的开发利用

Development and Utilization of Non-traditional Water Resource in Japan

对日本发生缺水的原因、中水开发利用和海水淡化情况进行了分析。缺水首先是由地理条件、气候变化、年降雨量不均造成的,也与大坝建设困难以及人口、产业高度集中有关。日本的中水开发利用迅速,与方式多样、技术措施合理、经济政策有力密切相关。日本的海水淡化随技术进步还将有较快发展。

The reasons for water shortage in Japan, the development and utilization of reclaimed water, and the seawater desalination are analyzed. The water shortage in Japan is firstly caused by the geographic condition, weather change and non-uniform annual rainfall, and it is also related to the difficulty of dam construction, and the high concentration of population and industries. The rapid development and utilization of reclaimed water is closely related to the pattern diversity, reasonable technical measures and economic policy. The seawater desalination will be quickly developed with the technical progress.