The Yellow River Delta Economic Efficient Water Safety Evaluation Of Ecological Research

Water resource is a foundation factor in development，and now we are faced withwater scarcity while living on this "water polo". This situation has been seriouslyaffecting our production and life, thus how to use water in a safe and effective wayhas become the fucus of the globe. In China of recent years, water scarcity has moreand more become a "bottleneck" along with the development of economy，for whichreason we must take objective assessment as well as urgent and effective measures todeal with this problem. Yellow River delta is one of China’s three big deltas. TheState Council formally approved "the Agenda of Development for an Efficient andEcological Yellow River Delta Development Zone " on November 23, 2009, andadvanced this agenda to the level of national strategy. To conclude, if economy wantsto be well developed, water problems must be solved.This paper makes an evaluation of water safety condition in the Yellow Riverdelta development zone, and the specific details are as follows:1. This paper makes a detailed review of research on and methods for watersafety home and abroad, and finds that foreign experts mainly do research focusing onthe angle of districts, food, environmental security and water supply capacity. Theresearch always involves extensive contents and the method adopted is mainlyqualitative. In comparison, domestic research focuses on an overall evaluation,studying security situations of urban water, rural water, rivers and lakes, and waterenvironment as a whole. Besides, demestic research also touches upon factorsaffecting water safety in our country, but for latest global studies, such as on greenwaters and blue waters, we are still in the initial stage.2. The paper makes an analysis of the present water resource situation in YellowRiver delta efficient and ecological economic zone. Due to lack of adequate water,this area relies on water mainly from Yellow River, which however, has many timesstopped flowing because of its over carrying capacity. Though measures have beentaken to solve this problem in recent years, the condition is still quite severe.Exploitation of water resource in this zone is facing many problems: seawater intrusion is threatening underground water, and underground funnel areas areincreasing. As a result, in 2009, Wudi County , Zhanhua Country, Changyi City,Shouguang City and Hanting Regions have been faced with different degrees ofseawater intrusion, and the degree has increased compared with that of 2008; thephenomenon of water pollution is also quite serious. According to the routinemonitoring on Yellow River delta economic zone, a few major rivers have been inoverweight status, with proportion of non-flowing section around 70%. Within theserecent five years, no river has been detected to reach water quality of I and II classes.Flow monitoring also examined that exceeding phenomena are very serious as well.3. This paper adopts the method of entropy weight empowerment, assesses theanalysis method, and makes an evaluation of water resource security in Dongying,Binzhou, Laizhou, Shouguang, Changyi and Leling in 2009. Results reveal thatbasically these cities are in a critical level of security. From evaluation factors ofsupply and demand for water resource, quantity of water per capita in these cities isquite scarce except that of Changyi. Faced with the least quantity of water, Leling isdegraded to the city with water shortage of cities, which also shows that the YellowRiver delta zone’s water security situation is not optimistic.4. In order to respond to dynamic changes of water security in Dongying andBinzhou more efficiently, this paper selects the 26 representative indexes, andresearch on dynamic changes of water security for eight years, from 2002 to 2009.Results of this paper show that Dongying’s water security is on critical safety levelfrom 2002 to 2009, yet from 2006 to 2009 water security level and relative watersecurity level are in great correlation, indicating a further improvement in water safety,which is related to the carring out of several measures on developing a water-savingsociety and on saving and protecting water resource as well as on reducing waterconsumption. Results of the paper also reveal that water security of Binzhou is on acritical level from 2002 to 2009. Although on the critical level of security from 2002to 2003, security correlation is not very strong. Yet in 2009, water security level andrelative water security level appear to be in relevant correlation again, which showsBinzhou’s water security is developing in a secure and harmonious way.Finally, this paper puts forward a series of measures according to the presentproblems, and makes predictions of water security situation in the future.