Seite - 322 - in Book of Full Papers - Symposium Hydro Engineering

Figure 6. Monthly mean temperature and precipitation of A County after water storage After water storage in the reservoir,precipitation of A County increases during all seasons, including during the flood season(Figure 7).Annual precipitation increases nearly 70% than the previously.However, precipitation in winter and spring is often scarce for human consumption and agricultural production,so the reservoir could provide a water source for these. Figure 7. Precipitation comparison of A County pre and post water storage of the reservoir 4.2. CLIMATE CHANGES IN B COUNTY As shown in Figure 8,air temperature of B County has the same change trend asA County pre and post the water storage of the reservoir,but within smaller changes.For example, maximum temperature difference of B County is 3.8℃ in summer,and A County is 7℃ in winter.This is because temperature of B County is higher than A County in summer,and the reservoir has less effect on B County air temperature. 322