Study On Configuration Control Pattern Of Water Resource In The Wei Bei Loess Mesa Irrigated District

Water is a sort of precious resource that people need to live and development;it is also one of the important environment resources.Water resource is in relation to agriculture industry and commoll living tightly,it has important influence on national economy in its development.When it concretes to our country's water resource question,water rich water shortage and water pollution are the main respects.Water resource total quantity of our county is 2.8×103 billion cubic meters,it occupies the 6th in the world;the difference of water distribution is rather big in time and space,average water resource quantity of each person and acre is small.Besides,the worsen of water environment which is caused by water pollution and the damage of ecosystem environment which is caused by unsuitable exploiter of water resource make the situation of water resource in our county more rigorous.Configuration control of water resource is the best way to realize the reasonable configuration of water resource.Adjusting and controlling water resource with scientific means, we can optimize and arrange water resource,and make good use of water resource effectively. Water resource possesses multiattribute characters,such as resource society and environment. So the processes of water resource's adjustment control and analysis must toucn upon many questions.As a result of the history of theoretic study and practical exertion is not 1ong,the system info and analytic methods of water resource's configuration control have some contents need to be studied and perfected urgently.Shan Xi Drovince is one of the cradles of Chinese nation.She is famous for her ancient civilization.Hou Ji,the primogenitor of oriental farming furrow, instructed people how to farm lands and initiated the original culture of farming.Loess land on the banks of Wei River had enough light and heat,and the condition of moisture was all right in Qin and Han periods. It fostered hardworking and earthy Chinese people,and formed the Han and Tang Empires that are in fashion for a period.With vicissitudes of history,the activities of human had accelerated the retrogression of environment and made many ravines appeared in the loess mesa in the nonh bank of Wei River.The serious lose of water and soil,lots of drought and short of water have made the entironment frailness extremely.