农业节水、污水资源化和科学调蓄利用汛期雨洪资源是降落漏斗修复的主要途径。
Saving water in agriculture, turning waste into resources and utilizing the resources of great precipitation and floodwater in flood season are the primary ways.
指出武汉市主汛期降水存在40年、25年、10年、4—7年左右的周期振荡，并由降水的周期性推知本世纪初武汉市汛期将进入下一个少雨时段。
The main period about 40,25,10 and 4-7 years are found. Based on this, we can forecast the lack of rainfall in Wuhan city in initial stages of this century.
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