Land use conversion

The complete description of the NWRM: 

Land use conversion is a general term for large scale geographic change. Afforestation is one such land conversion in which trees are planted on previously non forested areas. Afforestation may occur deliberately or through the abandonment of marginal agricultural land. Depending on the tree species planted and the intensity of forest management, afforestation may have more or less environmental benefits. The NWRM related benefits include potentially enhanced evapotranspiration associated with growing forests and better water holding capacity associated with forest soils. The greatest environmental benefits are probably associated with planting of indigenous broadleaves and low intensity forestry. Plantation forestry with exotic species is likely to be less beneficial to the environment. It should be mentioned that afforestation in dry areas can cause or intensify water shortage. Even though afforestation may reduce available water supply at local scale, forest cover increases water supply regionally and globally, in particular through the intensification of the water cycle.


Afforestation of a hill

Source: Gebhard Schueler’s presentation, NWRM Workshop 1


Possible benefits with level: 
Benefits Levelsort descending
BP1 - Store runoff High
BP2 - Slow runoff High
BP5 - Increase evapotranspiration High
BP6 - Increase infiltration and/or groundwater recharge High
BP8 - Reduce pollutant sources High
BP9 - Intercept pollution pathways High
BP10 - Reduce erosion and/or sediment delivery High
BP14 - Create terrestrial habitats High
BP16 - Reduce peak temperature High
BP17 - Absorb and/or retain CO2 High
ES1 - Water storage High
ES3 - Natural biomass production High
ES4 - Biodiversity preservation High
ES5 - Climate change adaptation and mitigation High
ES6 - Groundwater/aquifer recharge High
ES7 - Flood risk reduction High
ES8 - Erosion/sediment control High
ES9 - Filtration of pollutants High
ES10 - Recreational opportunities High
ES11 - Aesthetic/cultural value High
PO9 - Take adequate and co-ordinated measures to reduce flood risks High
PO1 - Improving status of biology quality elements Low
PO2 - Improving status of physico-chemical quality elements Low
PO3 - Improving status of hydromorphology quality elements Low
BP13 - Create riparian habitat Low
BP15 - Enhance precipitation Low
PO13 - Better management of fish stocks Low
BP7 - Increase soil water retention Medium
BP11 - Improve soils Medium
PO4 - Improving chemical status and priority substances Medium
PO5 - Improving quantitative status Medium
PO6 - Improving chemical status Medium
PO7 - Prevent surface water status deterioration Medium
PO8 - Prevent groundwater status deterioration Medium
PO11 - Better protection for ecosystems and more use of Green Infrastructure Medium
PO12 - More sustainable agriculture and forestry Medium
PO14 - Prevention of biodiversity loss Medium
BP12 - Create aquatic habitat Medium
ES2 - Fish stocks and recruiting Medium
Last updated: 09 Jun 2015 | Top