How can rivers be used

The resulting loads of sediment and nutrients decrease water quality, leading to algal blooms in the lakes and seas into which rivers flow.

We need new sustainable, cost-effective solutions to combine ecosystem requirements and human uses of rivers. Nature-based solutions NBS are river management alternatives inspired and continuously supported by nature. They are designed to address the human requirements for rivers in an adaptable, resource-efficient and environmentally-friendly manner. NBS utilise vegetation and different depth and flow conditions in the channel design, essentially making use of the key features and functions of natural river ecosystems.

One promising solution is the two-stage channel design: a confined floodplain on the side of the main channel as an alternative to conventional dredging, which is harmful to the environment.

Two-stage channels function from low to medium and high flows. In this way, they can enhance resilience against floods and droughts induced by climate change. Reeds and other plants like bulrushes grow along the river banks.

Other animals use the river for food and drink. Birds such as kingfishers eat small fish from the river. In Africa, animals such as antelopes, lions and elephants go to rivers for water to drink. Other animals such as bears catch fish from rivers. River deltas have many different species of wildlife. Insects, mammals and birds use the delta for their homes and for food. In summary, irrigation water from rivers is crucial to overpopulated countries like India and China.

A reservoir is built to store water and water is released from that reservoir. The high flow of water makes turbine rotate which generates electricity. There is energy conversion from mechanical energy to electrical energy here. In most countries, this is the technique that they have been using to generate electricity from river water.

Tha Dam is Feet Tall. The highest dam in the United States is located near Oroville, California. The Oroville Dam is feet tall and is more than a mile 1.

This dam was built-in , 22 years after the Hoover Dam. It is feet tall and stores 21 million acre-feet of water in the miles long Lake Mead reservoir, behind the dam. I have written how Water Energy is used as Renewable Energy and Its importance in why is Renewable energy is important for the future article.

Fishing is the activity of catching fish. Fishing has been happening from the ages. In ancient times fishing is also the main source of food.

Seafood has been very important part of the food for non-vegetarians. Fishing and Boating are very popular recreational activities to consider and fishing is also a something people usually do for commercial purposes. People who live in the areas of rivers generally do fishing and sell fishes in the market for income for living. There are countries in the world which exports fish products to the neighboring countries.

Fishing is the main form of income source followed by remaining small creatures like crabs. People use different techniques for fishing mainly hand-gathering, spearfishing , netting , angling , and trapping. Recreational and Commercial artisanal use different techniques for fishing. Some people use whatever technique they feel comfortable. Recreational fishers fish for pleasure and sport. While Commercial fishers fish for income. China is the largest fish producer in the world.

India is the second largest fish producing countries in the world. The United States stays at 5th position in producing fishes and its products in the world. Many rare plants and trees grow by rivers. Most of these rivers provide sightseeing tours on a "water bus" that gives a unique view of the city from the rivers. Energy generation through hydrodams Upstream and watershed areas are frequently the location for energy generation through hydrodams.

Many upstream and downstream areas of hydrodams are, in many cases, given over to recreational areas such as camping, boaating, fishing, water sports, and other activities. However, the advantages that hydrodams provide - water storage, flood prevention and electricity generation, has to be balanced with the destruction of forests and relocation of local communities.

Watershed management for flood prevention in Toyooka The mountains surrounding the city of Toyooka in Hyogo prefecture, Japan are unfortunately a source of forest debris that washes down to river flowing through the city, frequently resulting in flooding.

Watershed management practices, including pruning of the surrounding forests and proper forest waste management has led to a significant reduction of flood risk, and to open up the river to aquatic bird habitats particularly Cranes for which the city is famous.