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This thesis simulates the zaoshi completed Reservoir Dam downstream river water temperature and water temperature along the way to master the reservoir dam and downstream river water distribution, water distribution on the analysis of the downstream river fish resources and aquatic irrigation of crops (rice) growth. The main research conclusions are as follows: 1) in May 2010, July and November 3 times right zaoshi reservoir and downstream river water temperature were observed. Reservoir water temperature observations show: May, July, November reservoir temperature stratification in the state, the water temperature from top to bottom showed a decreasing trend over the same period little change in water temperature, vertical temperature reservoir in different months vary greatly; downstream river water along the observations show: May, July, November downstream river water along a slight change in temperature, in May and July temperature increase along the way, in November along the water temperature changed little, During the same period the river water temperature of each section is small, average temperature of different rivers in different months. 2) Has the use of empirical methods and mathematical modeling method simulates the vertical water temperature Zaoshi Reservoir, analysis and comparison of two methods and found them there was little difference between the predicted results, and application of the more simple empirical method is recommended for experienced method to estimate the temperature Zaoshi Reservoir. Simulation results show that: Zaoshi belong stable stratification reservoir, November to March perpendicular uniform temperature distribution; April to October, the water temperature was stratification, vertical layers of water with increasing water depth decreases, which in May to September vertical temperature difference, database tables and reservoir bottom temperature is greater than 10 ℃, 4 months, October Zaoshi vertical layers of water temperature difference is greater than 5 ℃. 3) the use of a one-dimensional model to simulate river flow temperature calculated Zaoshi River along the water temperature, the calculated results show that: October-December, January-March, July since the dam water temperature changes along the three estuary than small temperature changes along were within ± 1.4 ℃; other months the water temperature changes along the larger, more in ± 1.5 ℃, June greatest change for 2.6 ℃. For the full year, when the temperature is lower than the water temperature, the water temperature decreases slightly along the way; when the temperature is higher than the water temperature, the water temperature increases along the way, the temperature and the temperature difference is large, a larger temperature change along the way. 4) final analysis of irrigation water for crops and growth of fish, drawn: the use of reservoir water for irrigation, the irrigation water to meet the basic requirements of crops suitable for the growth temperature, less impact on crop growth; build a reservoir of water temperature on River within the growth and reproduction of fish have a greater impact, the proposed extension of closed seasons authorities to protect fish resources.
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