mellékfolyókat

A mellékfolyó, also known as a tributary, is a stream or river that flows into a larger stream, river, or lake. It does not flow directly into a sea or ocean. Tributaries are a crucial part of a river system, contributing to its overall volume and flow. The point where a tributary joins a larger river is called a confluence.

The drainage basin of a river system is defined by all the tributaries that feed into it. These smaller waterways collect water from precipitation and groundwater over a wide geographical area, channeling it towards the main river. The size and number of tributaries can vary significantly depending on the topography, climate, and geology of the region.

In some cases, tributaries can be as large or even larger than the main river they feed into, depending on how the river system is defined. The distinction between a main river and a tributary can sometimes be arbitrary, often based on historical naming conventions or perceived importance. The water quality and sediment load of a tributary can influence the characteristics of the main river downstream of the confluence. Understanding the role of tributaries is essential for managing water resources, studying ecological systems, and comprehending hydrological processes.