With the economic and social transition from agriculture to industrialization

urbanize and moder nism in the Western Development

the new and hig her demand w ill be put forw ard abo ut the w ater resource exploitation and effective use. Water conservancy is not only the lifeblood of agriculture

but also the lifeblood of industry

cities

and the whole economy and society and even the humanit y's survival. At the same time

the water crisis turns to be severe. It has become a serious problem which caused the human society's general at tention. This point is more prominent and severe in Shannxi province

so it is very necessary to study it.