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1 南京市水资源的特点 (1) 水资源年内分而不均,雨量主要集中在汛期 (2)水资源年际分布不均,年最大降水量为1836mm,年最小降水量为508mm,两者相差3.6倍 (3)水资源空间分布不均 年降水量南比北多180mm左右,区域性暴雨时常发生,水资源量在地区间变化超过两成以上。 (4)客水资源丰富,但利用困难 长江大通来量多年平均9730亿m~3,但我市缺水地区主要集中在丘陵
1 Characteristics of Nanjing’s water resources (1) Water resources are distributed unevenly during the year with rainfall mainly concentrated in the flood season. (2) The annual distribution of water resources is uneven with annual maximum rainfall of 1836 mm and annual minimum precipitation of 508 mm. Both A difference of 3.6 times. (3) Uneven spatial distribution of water resources Annual precipitation is about 180mm south of the North, regional torrential rain often occurs, the amount of water resources in the region more than 20% change. (4) Rich in water resources, but difficult to harness the Yangtze River Datong for years to reach an average of 9730 billion m 3, but the city’s water-stressed areas are mainly concentrated in the hills