Water Is The Key Element Of The Life And Preserves Natural Ecosystems On Earth

1222 Words Dec 14th, 2015 5 Pages
Water is the key element to support the life and preserves natural ecosystems on earth. In the history of civilization water plays an important role for the establishment of habitat and also for expansion of trade. Most of the towns and cities were developed near sources of drinking water and along rivers for transportation. Mesopotamia was situated between the major rivers Tigris and Euphrates and the ancient society of the Egyptians depended entirely upon the Nile for agriculture productivity. China was one of the first countries to control water supply through irrigation and flood control works (Needham, 1986). Apart from development of society and transformation, water is one of the controlling factors for biodiversity and the distribution of earth’s varied ecosystems. All the communities of animals, plants and their interrelated physical and chemical environments depends on water. Aquatic ecosystems, such as wetlands, streams, and lakes, are especially sensitive to changes in water quality and quantity. Although water cycle is important for survival of all the forms of life on earth, flow of water over and beneath the earth is a key component of the cycling of other biogeochemical cycles. Runoff is responsible for almost all of the transport of eroded sediment and phosphorus from land to water bodies. Both runoff and groundwater flow play significant roles in transporting nitrogen and carbon from the land to water bodies (Moses, 2012). Therefore, water resource…

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