SLIDE 5 Scope
Green water
- Essential part of the water cycle
- Water availability determines productivity:
derived from rainfall that is available in the soil for plant growth through transpiration
- Opportunity for change: managing green water
✓ Water capture increases water availability by reducing rainwater runoff and groundwater seepage ✓ Water storage reduces evaporation
Enhanced rainfed agriculture
- Umbrella term for on farm techniques and
approaches to manage green water
- Includes concepts such as Conservation
Agriculture, soil health, regenerative agriculture, rainwater harvesting
Classification Description Green Water Soil moisture from infiltrated rainfall available for uptake by plants. Blue Water Rain water run-off occurring in streams, rivers, wet-lands, dams, lakes and aquifers. Grey water Waste water from domestic or commercial sources (not contaminated by toxic pollutants). Black water Water contaminated by organic or inorganic pollutants, especially faecal matter.
Reference: Falkenmark & Rockstrom