human impacts on the water cycle Flashcards
Three largest manipulations of the water cycle
-Human impacts on precipitation patterns
-Modification of soil moisture by land use and land cover
-Water withdrawals from discharge for human use
Criticisms of the definition of the freshwater use planetary boundary
-scale
-aggregation
-control variable
-mechanism
-underestimation of water use
Percolation
water going into ground water
Sublimation
solid to gaseous state
ecological function of green water
Natural irrigation
Healthy ecosystem
Securing land carbon sinks
Maintaining regional climates
Supporting plant growth
Human activities produced multiple pressures on waters
Nutrient pollution
Modifications of river morphology
Alterations of flow regime
Introduction of alien species