CLASSIFICATION WR characteristics

CLASSIFICATION

WR characteristics depends on climate midlands region, just depend on the nature of operation of irrigation, hydropower building. First, water resources, water in surface reservoirs and groundwater resources of the basin rivers flowing into the water during floods accounted for more than 85% , rainfall flowing into the lake depend on rainfall during the year. Therefore, with the same rainfall, the lake dose having a larger catchment area will get more water ( e.g Thac Ba. 3,9 billion m^3, Trial An 2,4 billion m^3) .
Finding out the laws of water level changes in reservoirs is very essential for design, project. Also, it is important to place appropriately raising fishes activities in water reservoirs. We need to discover designed water level of work
In reality, the changes of water level among years is different from each other àn caused by process of building , rainfall and needs of using water affection. In addition, the relationship between rainfall and demand of water adjusting among the months per year is not similar to each other. Therefore, water level is varying through 1-year-cycle
Toward the reservoirs in the provinces of Northern, water level is at least in March and April. In May, it increases gradually and it is highest in Octorber and November. Then, water level decreases little by little because of using water needs for general producing. The changes of water level leads to the changes of water area, water form and water capacity. This modifying has effect on the life of fishes and water creatures. It controls producing fish in the reservoirs.

Kết quả (Việt) 1:

CLASSIFICATION WR characteristics depends on climate midlands region, just depend on the nature of operation of irrigation, hydropower building. First, water resources, water in surface reservoirs and groundwater resources of the basin rivers flowing into the water during floods accounted for more than 85% , rainfall flowing into the lake depend on rainfall during the year. Therefore, with the same rainfall, the lake dose having a larger catchment area will get more water ( e.g Thac Ba. 3,9 billion m^3, Trial An 2,4 billion m^3) . Finding out the laws of water level changes in reservoirs is very essential for design, project. Also, it is important to place appropriately raising fishes activities in water reservoirs. We need to discover designed water level of work In reality, the changes of water level among years is different from each other àn caused by process of building , rainfall and needs of using water affection. In addition, the relationship between rainfall and demand of water adjusting among the months per year is not similar to each other. Therefore, water level is varying through 1-year-cycle Đối với các hồ chứa trong tỉnh Bắc, mực nước là ít trong tháng ba và tháng tư. Trong ngày, nó làm tăng dần dần và nó là cao nhất trong thi và tháng mười một. Sau đó, mực nước giảm dần dần vì sử dụng nước nhu cầu cho sản xuất chung. Thay đổi mực nước dẫn đến những thay đổi của diện tích nước, nước hình thức và năng lực nước. Sửa đổi này có ảnh hưởng cuộc sống của các sinh vật cá và nước. Nó điều khiển sản xuất cá trong các hồ chứa.