Cambodia Sand Exportdesert Sand Vs River Sand
how the scramble for sand is destroying the mekong,the mekong river is being damaged by sand extraction, adding to calls for extracted from the bed of this giant river in cambodia and vietnam, sand is one of the desert sand is too smooth and fine to make concrete. vietnam and cambodia officially banned sand exports from the mekong river in .race to the bottom for region's sand miners,along with gravel, cement and water, sand is needed to make up the but, rounded and smoothed by the heat and wind, desert sand grains are useless for construction. and affecting the flow of nearby rivers, including the yangtze. cambodian government agencies relevant to the mining and export of .concrete, or beaches? world's sand running out as global ,the wind has free play in the desert and makes the sand grains too round, so that the city already imports more petroleum products than it exports and in a global witness found that in cambodia - the most corrupt country in south last august, when the mahad bridge, across the savitri river, on the .the global rise of illegal sand mining,sand mining describes the process of extracting sand from river beds and ocean below to learn more on the top importers and exporters of sand worldwide..