Studies Based On Winter Wheat Yield And The Evaporation Correlation Water-saving Agriculture In Anyang

As a source of human life, water is essential for human survival and development, and also used to maintain the material basis of the global ecological balance. The rapid development of economic construction and the continued growth of the population size caused limitnation of water resources, which is seriously contaminated the other hand.More water is needed to meet the needs of our industrial and agricultural development. Water shortages and pollution slowly formed a vicious circle. Therefore, we need a set of measures of water resources in scientific applications. Anyang City, Henan Province is China’s sub-humid lands, For it’s local social development,the water resources has a relatively large gap. By the combined effects of anthropogenic and natural factors in the development and utilization of water resources, there has been a series of questions:Reduce the amount of groundwater resources, the gradual deterioration of the water environment, groundwater over exploited, water environmental management, and management awareness has to be improved further. As an agricultural city, the problems in Anyang is the agricultural irrigation, wasted water resources become more prominent. Therefore, Anyang City, winter wheat irrigation in water resource management and rational utilization of a very important practical significance for the sustainable development of water resources.This paper discusses the feasibility of science and increased production of winter wheat evapotranspiration and the dosage of the water. Discussed The anyang county of production yield potential and current winter wheat production use process model simulation; In the regression analysis of the relationship between the winter wheat yield and water consumption; And then using multiplication calculation model of winter wheat growing season and the provisions of the relationship between the water consumption, promote the different period of irrigation. Finally, the economical use of water resources from the concept of soil and water conservation measures. More from a series of methods, and draw the following conclusion:(1) there are significant correlation between anyang winter wheat yield and evaporation. Driven model of inverse leaf area index, and on the basis of NOAA-AVHRR average daily weather variable parameter, the simulation results show that the quantitative evaporation of anyang city of winter wheat growing season. The present situation of winter wheat production in anyang region to show in the surrounding areas of low, high yield region mainly focus on Huaxian, tangyin. Time of light and temperature conditions in these areas can basically meet the demand of winter wheat growth and development. Yellow area winter wheat yield is low, the main reason is that of the quantity of the wheat growing in the water supply can not meet its growth needs caused by water deficit. Taihang mountains, due to higher ground, temperature is below the eastern plain area, in theory a longer growth period of wheat production will be higher. But the lack of terrain of water and irrigation facilities caused, in turn, affects the production increases. The distribution, and distribution of winter wheat production evaporate have a lot in common. Fully shows the importance of for wheat production. steamed(2) Beside transpiration, how much the water consumption also plays a decisive role. This paper discussed water demand in winter wheat growing time. through a series of formulas are given the water consumption increase winter wheat yield and the demand of moisture factor. Tr can be divided into three stages:the first stage, of increased production and rapid increase water water consumption and demand of water factors are steadily declining its lowest point at the last stage of is reached. In the second phase, the output of wheat is continued to improve, but growth has significantly lower than the first stage; Water requirement coefficient also slowly increase. Output of winter wheat begin decline with the water consumption up.it show that continue to improve irrigation water use has been have a negative impacts to normal growth and development of the crops. The production practice, whether in the shortage of water resources are not permitted in this case.(3) compared to the water consumption of the whole in the growing season, suitable for all to plant crops winter wheat yield more water demand, so we get Jason model given water demand in each season of winter wheat. so we can give a scientific basis for the proper irrigation to the economical use of water resources.(4) Based the basic theory of resource-based water conservation, the paper give the resources to save water conservation measures for Anyang. First proposed improve engineering measures evaporation:spray and drip irrigation technology. Then introduced the agronomic conservation measures, this part can divided three methods: adjusting the planting structure, high yielding varieties breeding drought, water saving measures applied chemistry drought, use of scientific irrigation methods, such as flow irrigation. For Anyang evaporation give some management measures. Such as the use of automatic irrigation control and management, the implementation of scientific, reasonable water price and fee collection policies, establish and improve the planting structure adjustment of incentives to of water-saving agricultural technology.