河流概念内涵、理论基础与非河流对象辨析OA

As a fundamental concept in the field of river and lake protection and governance,the existing definitions of rivers are mostly confined to physical morphological characterization,without addressing the essential attributes of rivers or considering their interconnections with watersheds.This results in insufficient adaptability and ambiguous identification in practical scenarios.Aiming at such practical problems,focusing on the formation mechanism,ontological composition,and evolution of rivers,as well as their overall watershed correlation,and supported by the hydrological cycle and runoff yield and concentration theory,river life theory,and watershed system theory,this paper refines and defines three core constituent elements of rivers,including water flow,river channel,and watershed.It clarifies that watershed property is the essential characteristic of rivers,and optimizes and improves the existing river concept.On this basis,targeting two core identification difficulties in practical scenarios,namely whether a water object belongs to a river and whether a water object is an independent river or a component of a river system,the paper systematically distinguishes and clarifies the boundaries between rivers and various non-river objects.The research results can effectively remedy the theoretical defects of the current river concept,provide basic support for river and lake surveys,river and lake inventory compilation,river and lake management and protection,and relevant scientific research,and avoid conceptual misuse in practice.