问:我们村边有一条河,原来河床高时可引流灌溉农田。但近几年来,随着封山育林工作的加强,泥沙入河量减少;下游建筑抽沙量却大增,河床下降很大,农田灌溉只能用抽水机抽灌。2005年,经村民同意并共同出 Q: There is a river in our village where the irrigated farmland can be drained when the river bed is high. However, in recent years, with the strengthening of the afforestation and closing off forests, the amount of sediment entering the river has decreased; the amount of sediment pumping in the downstream construction has greatly increased; the riverbed has dropped greatly; In 2005, the villagers agreed and worked out