Global Management Water Cycle

Forestry

prevents soil erosion by reducing run off so water quality remains good, reduces river flow during dry periods, ruedicing doughts, reduces flood risks, improves infiltration

UN REDD provides

financia incentives to protect and restore projects

Brazil TRF project

ARPA covers 10% TRF satabilising water cycle

Water Allocation

promotes sustainable use of water, drip irrigation, zero tillage, countour ploughing

zero tillage

limits soil dusturbance and evapotranspiration

contour ploughing

decreases run off on slopes

Eg of Agrrement - Colorado basin agreement

divides water between upper and lwer basin promote sustainability and equitable water use among states.

management at Drainage Basin Planning is most effecive

as feasilbe to adopt integrated, holsitic management approach accomdoating many conflicting demands of water users.

Drainage Basin Planning targets

run off, surface water and groundwater specifically to optimize water resources and management. rap

id run-off controlled by

reforestation, extending permeable soils

surface water cotrolled by

conserving and restoring wetland

groundwater controlled by

limiting abstraction, recharge using injection into aquifers via boreholes (artficial recharge)

England and Wles DBP

10 river basins distincitly deifned to magae eg severn, thames, humber

each region has own specific management lan, they set targets

in relation to water quality, abstraction rates, groundwater levels, flood control