Sand mining is a practice that is utilized to concentrate sand, from different conditions, for example, shorelines, inland hills and dug from sea beds, furthermore, stream beds of deltaic locales. The mining is inactivity in every one of the landmasses of the Globe. Ecological issues happen when the pace of extraction of sand, rock and different materials surpasses the pace of deposition.
Sand mining is one of the main threats to the rich biodiversity alongside our perennial rivers and ephemeral watercourses. It can destroy riverine vegetation, cause erosion, pollute water sources and reduce the diversity of animals. The beach and dune system habitat along the coastal zones also victims. Off-shore sand mining pumping biota with sand and damaging coastal ecosystem.
Some of the impacts of sand mining on the biological environment are presented here:
Many species of trees and shrubs in dry riverbeds are supported by groundwater retained by the river sand at varying depths will disappear. The manufactured sand is one of such things that is widely replacing the river sand. The extraction of sand from the riverbed may affect their survival and recruitment ability. Dust caused by trucks can impede the photosynthesis of plants. The advantages of M-sand will clearly make a place in your mind thus helping you become aware of these things.
Affect burrowing animals and insects, as well as plants, and to a lesser extent larger mammals and reptiles because they can easily migrate to uninterrupted places. As sand mining destabilized soil structure, river banks and often leaves isolated islands of trees, the subsequent flow will erode the banks and islands. Mined areas that show the decreased depth of surface flow could result in migration blockages for fish during low flows.
When water does not cover much of the streambed, the amount of viable substrate for aquatic organisms is limited. In high-gradient streams, riffles and cobble substrate are exposed; in low gradient streams, the decrease in water level exposes logs and snags, thereby reducing the areas of good habitat. Operation of heavy equipment in the channel bed can directly destroy spawning habitat for fish and macro invertebrate habitat, and produce increased turbidity and suspended sediment downstream. Stockpiles and overburden left in the floodplain can alter channel hydraulics during high flows.
The most likely effects of suspended sediments on fish include: reduction in light penetration and of photosynthesis in micro and macrophytes, resulting in reduced food availability and plant biomass; reduced visibility of pelagic food; reduced availability of benthic food due to smothering; clogging of gillrakers and gill filaments. Destabilising river banks and increased sediment inputs disturb rich sea bank and organic matter in the overburden.