长江江苏段边滩演变特性及分类管控对策研究OA

The point bars along both banks of the Yangtze River possess ecological functions such as flood discharge,flow regulation,and river health maintenance,while also exhibiting resource attributes with development and utilization potential under specific conditions.Against the backdrop of rapid socio-economic development,conflicts between the exploitation of Yangtze River point bar resources and flood control safety have become increasingly pronounced.Inadequate understanding of point bar evolution patterns and the lack of targeted management and protection measures have severely constrained local economic development.Based on comprehensive investigation and analysis results,this study delimits 38 key point bars in the Jiangsu section of the Yangtze River.Utilizing field measured data,it systematically examines the historical formation causes and current stability status of these point bars.The point bars are categorized into three types:conservation type,reservation type,and controlled utilization type.Corresponding principles and guiding opinions for protection,utilization and management of each type are proposed,providing technical support for the sustainable socio-economic development of regions along the Yangtze River.