Analysis On Climate Change Impacts On Regional Water Consumption

Impact of climate change on agricultural water utilization in the performance of that resulting in temperature rise, thereby accelerating the process of crop transpiration, changing crop growth period, altering planting structure, the ultimate impacts change of regional water consumption. The impact of climate change on industry incarnates the industrial structure to stimulate the development of advanced, thus improving the technical level of water using to affect industrial water consumption. The impact of climate change on domestic water incarnates transforming domestic water habits of resident.Calculation and analysis of regional water resources utilization under the climate change in this thesis mainly include quantification of climate change and considering climatic factors of the regional water resources calculation and analysis. For the regional water systems,it analyzed and calculated long-duration meteorological data by variability, trend coefficient, moving average, the percentage of anomalies and other indicators, assessed trends in the time series, reflected the situation of climate change.it pick up trend items one regional water utilization sequence relate to climate change by singular spectrum analysis.finally it calculate the contribution of climate change concern regional water resource consumption.According to the available information and a variety of data collected, we selected Yinjiang County, Guizhou Province as the research object. The calculation and analysis methods applied to the target area. The result shows that the increasing trend of precipitation and temperatures are both relatively flat for 60 years in Yinjiang County, it’s not much change from mean. There is a presence of a weak positive correlation between temperature and precipitation, which is hot and humid in the same period each year. The average temperatures rise is due to increasing of extremum low temperatures and hot days,as well as reducing of cold days. The annual precipitation increasing is due to an increasing of wet season rainfall. The analysis of the area of Yinjiang County under the computing model shows that the main affect factors is agricultural water consumption in the impact of climate change on the Yinjiang County water consumption. agricultural water consumption and temperature factor are positively correlated,it means that rising temperatures cause a corresponding increasing in agricultural water consumption. Industrial water consumption and temperature factor are positively correlated yet precipitation is negatively related impacts.It’s means that rise in temperature and decrease in precipitation cause a corresponding increase in industrial water consumption. The impact features of domestic water consumption is the same to industrial water consumption. As a whole from the total in Yinjiang County, water consumption and temperature factor are positively correlated, with precipitation is negatively related impacts. Higher temperatures and reducing precipitation will rise the total amount of regional water resources consumption.Based on the model established and computational analysis from quantitative analysis of climate change as well as singular spectrum analysis,in view of that China generally tight supply and demand of regional water resources and water resources utilization efficiency is low currently,the model of analysis on climate change impacts on regional water consumption can be used for regional water resources consumption effect factor, water resources supply and demand calculation.lt provides a method of making a theoretical analysis that achieves supply and demand balance and efficient use of water resources.