Mekong River Upstream Privileges and Downstream Threat Environmental Science Essay
The Mekong River ecosystem is on the brink of irreversible collapse due to the cumulative effects of climate change and the increased number of upstream dams and other man-made dams. The Mekong River Basin in Vietnam is largely downstream and is responsible for the river basin area, including the upstream of the Nam Ron River, a MIKE SHE model of the Mekong, calibrated and validated monitoring stations, is used to predict climate change scenarios simulate associated with an increase in C. The development of hydroelectric projects in the upstream Mekong countries is and will be inevitable and have major impacts on the downstream areas. The physical, environmental and economic future of the Mekong is threatened by upstream dams. If we want the Mekong to remain healthy and survive, this is necessary. A study commissioned by MRC and UNEP, based on national expert reports, workshops and existing data, identified priority environmental issues in. Contrary to expectations, we found here that a cascade of reservoirs along the upper Mekong River increased the downstream bioavailability of nitrogen and phosphorus. The dams produced phytoplankton. Dams stimulate phytoplankton production and alter nutrient exports downstream in the Lancang-Mekong River. Credit: Science China Press. The number of hydroelectric dams has increased dramatically in recent years. On the Mekong, navigation has so far focused on the areas upstream of Chiang Saen and downstream of Phnom Penh, MRC, 2016, but a major blasting and dredging project is being prepared to restore the river. navigable from the planned Pak Ben Reservoir to Luang Prabang, part of an ultimate ambition to make the Mekong navigable from the, By: Trisha Ray, Columnist Photo Credit: Mongabay The Mekong River, in particular the proliferation of Chinese dams along it , is a source of conflict between the upstream countries of China and Laos and the downstream countries of Cambodia and Vietnam. The basis of this conflict is the consequences for the environment. In recent decades, significant concerns have been raised about the threat posed by hydropower dams in the Mekong River basin to a range of important freshwater river fisheries, especially to fish that migrate seasonally over long distances. However, much less attention has been paid to the threat of hydropower dams to fish diversity in the Mekong Delta, one of Asia's largest deltas, facing multiple threats from different sources, inland and at sea. These include climate change, extreme weather events, sea level rise, saltwater intrusion and the construction of dams upstream that affect freshwater flows downstream. These man-made activities and,