采砂对河道的影响分析及治理措施研究

阐述了河道采砂现状及采砂管理中存在的问题,分析了无序采砂的不利影响;总结了采砂管理中存在的问题.为了实现河砂的可持续性科学开采,提出了以下治理措施:大力推广用人工砂替代天然砂,减少河砂需求压力;调整河道采砂的收益率,控制采砂船只数量和规模,引导采砂经营活动,减少河道采砂管理的压力;推广长江干流河道采砂管理制度,制定科学合理的开采规划;加大采砂管理执法力度,严厉打击非法采砂.

Study on the situation of sand-gravel extraction in the river channel

A large volume of sand will be needed along with the fast development of the economic.Based on the analyses about the disadvantages of the unlawful sand-gravel extraction,the exiting problems in management of sand-gravel mining,a corresponding policy and measurement are proposed.To popularize application of artificial sand to replace natural sand,and adjust the profit rate of sand mining to social average level,the demand for the sand-gravel extracted from the river channel will be decreased.On the condition that to generalize the experience of management in the Changjiang River,establish a scientific program to extraction,and enforce the power of management,a scientifically and orderly way of river sand-extracting will turn to true.