■ The source of water used in Iwate Prefecture ■ Classification of the earth's water ■ Water resources in the world and Japan ■ Amount of water supply for Iwate Prefecture ■ Classification of water for use ■ Incline and width of the Kitakami River ■ Incline of the major rivers of the world ■ Average temperature for each area ■ Major typhoons that passed through Tohoku ■ A graph showing annual precipitation (from 1953 to 1983) of Honjo, Akita and Kamaishi, Iwate ■ Record of recent major floods in Iwate Prefecture ■ Number of accidents that make rivers dirty

■The source of water used in Iwate Prefecture 　 (Reference data)New water supply plan for Iwate Prefecture by Iwate Prefecture in 1996 →Back ■Classification of the earth's water 　 　 ●Ninety-seven percent of water on the earth is seawater. We utilize river and lake water (dammed). Freshwater makes up only 0.01% of water on the earth. (Reference data)Water resource white paper "Water resource in Japan" by the National Land Agency in 1999 →Back ■Water resources in the world and Japan 　 The source of our water resource is rain. The annual rainfall in Japan is plentiful by world standards but as the population density in Japan is high, the quantity of water per person is only one-fifth of the world's average. Water resources are not plentiful in Japan. （Reference data）Water resource white paper "Water Resource in Japan" by the National Land Agency in 1999 →Back ■Amount of water supply for Iwate Prefecture 414,000 m3 per day This amount is equal to 4.9 times the size of the Iwate Prefectural building. （Reference data）Water demands in Iwate Prefecture by the natural resources and energy section of the planning and promotion department of Iwate Prefecture, 1998 →Back ■Classification of water for use 　 (Reference data)Water demands in Iwate Prefecture by the natural resources and energy section of the planning and promotion department of Iwate Prefecture in 1998 →Back 　 　 　 →Next page

Copyright(C)2001 KITAKAMIGAWA TYOUSATAI Allright reserved.