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[7] The sediment yield of a river is the quantity of sand per unit area within a watershed that is removed over a period of time. [11] The monitoring of the sediment yield of a river is important for ecologists to understand the health of its ecosystems, the rate of erosion of the river's environment, and the effects of human activity. [11]
River training structures will help to modify the hydraulic flow and the sediment response of a river. [5] Miyagase Dam in Japan. Humans have modified the natural behavior of rivers for longer than history is recorded. The management of water resources, protection against floods and hydropower are not new concepts. Regardless, river engineering ...
Rivers get their alluvium from erosion, which carves rock into canyons and valleys. Rivers have sustained human and animal life for millennia, including the first human civilizations. The organisms that live around or in a river such as fish, aquatic plants, and insects have different roles, including processing organic matter and predation.
A river valley civilization is an agricultural nation or civilization situated beside and drawing sustenance from a river. A river gives the inhabitants a reliable source of water for drinking and agriculture. Some other possible benefits for the inhabitants are fishing, fertile soil due to annual flooding, and ease of transportation.
There are twelve rivers which are classified as major rivers, with the total catchment area exceeding 2,528,000 km 2 (976,000 sq mi). [28] All major rivers of India originate from one of the three main watersheds: [28] The Himalaya and the Karakoram ranges; Vindhya and Satpura range in central India; Sahyadri or Western Ghats in western India
A stone near Crissolo, Italy, is inscribed, "Here is born the Po".. The United States Geological Survey (USGS) states that a river's "length may be considered to be the distance from the mouth to the most distant headwater source (irrespective of stream name), or from the mouth to the headwaters of the stream commonly known as the source stream".
Identification of Rigvedic hydronyms has engaged multiple historians; it is the single most important way of establishing the geography and chronology of the early Vedic period. [1] [2] Rivers with certain identifications stretch from eastern Afghanistan to the western Gangetic plain, clustering in the Punjab.
Birth of the Guadalquivir. The river is 657 km (408 mi) long and drains an area of about 58,000 km 2 (22,000 sq mi). It rises at Cañada de las Fuentes (village of Quesada) in the Cazorla mountain range (), flows through Córdoba and Seville and reaches the sea at Sanlúcar de Barrameda, flowing into the Gulf of Cádiz in the Atlantic Ocean.