The Analysis Of The Dynamic Relationship Between The Water Footprint And Impact Factors Of Wuwei

The city of the wuwei is the one of the highest water resources development ofarea basin in China, deep in the hinterland of the China, away from the ocean, waterresources condition is poor, the change of climate and human activity disturbancesshow some vulnerability, which is typical fragile of water resources in arid region,change form a morphology slide into another form by outside force easily, sensitivityand variability. In the past two thousand years, water resources environmentdeteriorated gradually under the dual impact of climate change and human activities,especially in the last fifty years, led to the shortage of water resources, soil erosion,shrinking glaciers, rivers flow and a series of water resources environmental problems.Especially the region of the downstream, large tracts of dead vegetation, natural oasisis contractible ceaseless, desertification land area expands increasingly, sandstormhazard increases, water ecosystem self-regulation and the anti-interference ability hasbeen descend. The contradiction between people and water has been deteriorate, lackof water resource has become the most main factor which is restrict economicdevelopment of Wuwei. To change the harsh reality, first we should recognize Theimpact of human activities on the water resources system, From the human to theconsumption of water resources, With the concept of water footprint to reflect theregional human consumption occupies actual situation of water resources, Theinfluence factors of water footprint to study the most effective water saving way, Forthe scientific assessment of the water footprint and water resources management inarid regions and provide a scientific basis for decision-making.Based on the concept of water footprint and the water footprint calculatemethod. At first, calculation and analysis of the1995-2009Wuwei water footprint andwater footprint related influence factors; according to the dynamic econometricmethod. We analyzed the water footprint and impact factors of the relations which isthe long-term dynamic equilibrium and short-term fluctuation; At last, analyzed therelations of granger causality test between the water footprint and impact factors. Theresults show that the water footprint of urban and rural residents, water footprintintensity, the level of urbanization and virtual water consumption index of urban and rural residents shows the tendency of rise or fall in1995-2009; Through thecointegration test, error correction model test and the granger test, Found the waterfootprint and its influence factor, there is existed a long-term equilibrium relationshipand short-term fluctuation relationship and granger causality. The intensity of waterfootprint within the scope of the long-term and short-term exist negative impact,Urbanization and urban and rural residents’ virtual water consumption index ofpositive influences. In many impact factors, especially the influence to virtual water isVirtual water consumption index of urban and rural residents, and the influence ofurban and rural residents’ consumption index mainly reflects on the dietary structureof rural residents. During the scientific management of water resources, we shouldanalysis urban and rural residents’ consumption structure of the variable as a keyconsideration.