The Disquisition Of Choosing The Water-saving And Irrigation Technology In Order

Our country is a big agricultural country and it not only has a bearing up on the dinning problems of more than one billion population, but also on the national economy and social development. But the basic situation of our country are the too much people,lacking of land and water resource,odds of water in space time and frequently water disaster, which decide the extremely sense of the irrigation and drainage. After coming into existence of new China, our party and government thought much of the constructing of the water conservancy, dived into a mass of fund and built a lot of water-saving and irrigation project, made a success which all over the world fixed eyes on. But the agriculture irrigation still has problems as a whole: first, it still has big difference compare to tall irrigation efficiency ,although the using rate of the agriculture irrigation has been developed to 0.46 ,so there are low using rate of irrigation water and wasting water; second, the tempo of the irrigation developing, there are only 34.5% which the irrigation area accounts for the chief irrigation area; third, the developing among the irrigation area are out of balance; forth, some irrigation project are in pursuit of technology in blindness, but it can not bring into play good action, because the moving effect is not ideal of the project for the manage and the moving cost.The subsistent problems educe the problems of the technology choosing course by the research and analysis of the actuality and development of the water-saving and irrigation technology. Advance the meaning of the irrigation technology in order basic on the theoretic analysis of the primary problems. According to the principle of choosing the irrigation technology in order, particularly expatiates the factors working on the irrigation technology in order and makes it in fix quantify. And build the mathematics former of choosing the irrigation technology in order by using the faintness math and AHP.Basis on the characteristics of the water-saving and irrigation technology and the irrigation area, bring forward the theory of the water-saving and irrigation technology in order. Irrigation technology in order is the organic unification of the nature,economy,technology,society and environment. Expatiate the principia to choose the irrigation technology in order, thinking over the choosing of the irrigation technology in order from every azimuth, calculating stress the environment and the society, pledging the durative of the environment of the irrigation area, analyzing systemic the factors which have effect on choosing the irrigation technology in order, appraising scientific the quantitative factors and the qualitative factors. The index system has been built which have effect on the choosing of the irrigation technology in order, every index has been particularly explained and the index has been divided into seven species,thirty-six factors. The mathematics former of choosing the irrigation technology in order has been built basis on AHP and faintness math, and fix quantify the qualitative factors by experts'judging. Then calculate the former. At last there's an example, calculate it to demo particularly how to calculate the former.This subject thinks over the factors which have effect on choosing of the irrigation technology in order from every azimuth and brings forward the theory of the irrigation technology in order. It has important sense on choosing irrigation technology in order.