Waterresource
Waterresource refers to the naturally occurring freshwater resources available for human use and ecological balance. It includes surface water in rivers, lakes, and wetlands; groundwater in aquifers; and components of the hydrological cycle such as rainfall, snowmelt, and soil moisture that feed streams. The amount of usable water varies by place and season, and can be depleted if withdrawals exceed recharge.
Blue water and green water are common classifications. Blue water covers liquid surface and groundwater that
In practice, agriculture is the largest consumer of freshwater worldwide, followed by industry and domestic use.
Management involves planning and governance to balance supply with demand, protect ecosystems, and ensure equity. Integrated
Key challenges include climate change, which alters precipitation patterns and increases extremes; population growth and urbanization;