Land use: catchment management

摘要: Freshwater is a scarce and valuable resource (FAO, 2011). Conservation equitable distribution of freshwater is therefore critical to sustaining ecosystem services global food production (Rockstrom et al., 2009). Agriculture uses 70% so optimizing water use through advanced irrigation, farm, processing systems paramount meeting the globally increasing demands for food, particularly in face changing climate. With quantity available, all human activities affect quality resources, degradation turn increases scarcity (Peters and Meybeck, 2000). Impaired also limits ecosystem services, welfare livelihood (Ongley, 1996; FAO, 2011). Poor can cause loss aquatic and riparian biodiversity, stability recreation value, poor health (e.g., due unsanitary drinking toxins from harmful algal blooms), physical disruption supply systems, shellfish contamination, fish kills, reduced aquaculture (Carpenter 1998; Schindler, 2006; Withers Haygarth, 2007; Kay