2. Steep gradient: Mature rivers have a relatively steep gradient, which means they flow quickly. This helps them to carry more water, as the faster the water flows, the more sediment it can transport.
3. Wide and deep channel: Mature rivers typically have a wide and deep channel, which allows them to carry more water.
4. Meandering: Mature rivers often meander, which means they have a winding course. This increases the length of the river, which gives it more time to collect water.
5. Tributaries: Mature rivers often have a number of tributaries, which are smaller rivers that flow into them. These tributaries contribute to the amount of water carried by the main river.
6. High precipitation: Mature rivers are often located in areas with high precipitation, which means they receive a lot of rainfall. This increases the amount of water they carry.
7. Snowmelt: Mature rivers may also be fed by snowmelt, which can contribute a significant amount of water to the river during the spring and summer months.
In summary, mature rivers carry a lot of water due to a combination of factors including their large drainage basin, steep gradient, wide and deep channel, meandering, tributaries, high precipitation, and snowmelt.
