While Cultural Eutrophication is caused by human activities. That is why these areas are called dead zones. Eutrophication can be divided into cultural eutrophication which is caused by human activity and natural eutrophication which is a natural process. Research: Impacts of Cultural Eutrophication on Lakes As seen in Figure 2, cultural eutrophication is caused by human land use, including agriculture and residential or industrial developments. Eutrophication has become a very important problem particularly in heavily populated parts of North America and Europe and it has a range of devastating effects. With the increase in population in different countries of the world, the utilization of surface water has increased as the use of water and agriculture has increased. Cultural eutrophication occurs when human water pollution speeds up the aging process by introducing sewage, detergents, fertilizers, and other nutrient sources into the ecosystem. Cultural eutrophication is when a flux of excess nutrients from human activity are added into a local run-off which in turns speeds up the natural eutrophication. Accelerated or Cultural Eutrophication. Cultural eutrophication is the process that speeds up natural eutrophication because of human activity. Dead zones are low-oxygen, or hypoxic, areas in the world’s oceans and lakes.Because most organisms need oxygen to live, few organisms can survive in hypoxic conditions. Cultural eutrophication has had dramatic consequences on freshwater resources, fisheries, and recreational bodies of water and is one of the leading… The most striking effect are algal blooms. Eutrophication is derived from the Greek word ‘eutrophos’ that means well-nourished or enriched Eutrophication is the excessive presence of nutrients like nitrate and phosphate in a lake or other water bodies, which causes a dense growth of plant life. Additionally, Sondergaard et al., 1996, demonstrated that grazing waterfowl (such as swans) can prevent lakes recovering after eutrophication. Dead zones occur because of a process called eutrophication, which happens when a body of water gets too many nutrients, such as phosphorus and nitrogen. Causes and effects of cultural eutrophication. However, in most cases, major man-made changes, especially in land or surface water, can cause such conditions. materials that can be broken down by living organisms into different chemical compounds eutrophication caused by human activities the result of excess nutrients in an aquatic ecosystem, which causes excess plant and algae growth water that contains the waste from homes and industries. Cultural eutrophication and fish mortality are mainly due to lack of oxygen. Anything that destroys our natural environment and changes the imbalance can break the equilibrium. cultural eutrophication eutrophication wastewater. Explain how human activities can cause an imbalance in biogeochemical cycling and lead to problems such as cultural eutrophication and fish kills. This is caused by human activity, this problem became apparent once the green revolution and industrial revolution began in the last century. 1. The enrichment of water by nutrients can be of a natural origin (natural eutrophication) but is often dramatically increased by human activities (cultural or anthropogenic eutrophication). As per Wikipedia, “Eutrophication or more precisely hypertrophication, is the ecosystem’s response to the addition of artificial or natural nutrients, mainly phosphates, through detergents, fertilizers, or sewage, to an aquatic system.One example is the “bloom” or great increase of phytoplankton in a water body as a response to increased levels of nutrients. Which in turn are responsible for addition of 80% nitrogen and 75% phosphorus to lake and streams. 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