Page 39 - 2017年全国水利发展统计公报
P. 39

Reservoirs and water complexes郾 The number of reservoir in China reached

                           98郯 795郯 with a total storage capacity of 903郾 5 billion m 郾 Of which 732 belong to
                                                                             3
                                                                           3
                           large reservoirs with a total capacity of 721郾 0 billion m , accounting 79郾 8% of the
                                                                                                   3
                           total; 3郯 934 medium鄄sized reservoirs with a total capacity of 111郾 7 billion m ,
                           accounting 12郾 4% of the total郾





                           Tube wells and pumping stations郾 A total of 4郾 96 million tube wells, with a daily
                                                                           3
                           water abstraction capacity equal or larger than 20 m or an inner diameter larger
                           than 200 mm, were employed for water supply in the whole country郾 A total of
                                                                                3
                           95郯 077 pumping stations that have an installed flow of 1 m / s or installed voltage
                           above 50 kW were in operation, among which 375 categorized as larger pumping
                           stations, 4郯 255 medium鄄sized and 90郯 447 small鄄sized pumping stations郾




                           Irrigation systems郾 The irrigation districts with an area equal or above 2郯 000 mu

                           added to 22郯 780, with a total effective irrigated area of 37郾 483 million ha郾 In
                           which, the irrigation districts equal or above 500郯 000 mu reached 177, with a







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