Assessing impact of integrated natural resources management technologies in watersheds uri icon


  • Natural resource management (NRM) is an impertant issue to be addressed carefully,more so in the semi-arid tropics where majority of the rural livelihoods are dependenton agriculture, Water scarcity and land degradation are the major constraints alongwith poor socio-economic conditions and lack of infrastructure for increasingagricultural productivity of rainfed systems. The sustainability of production, soilquality and other environment resources are the major impact factors of INRM. Withwatershed as an entry point, assessing the impact of integrated natural (INRM) interventions offer useful information 'on the performance ofagricultural watersheds. Pathways of impact in watersheds are multi-pronged (Fig. 1)and complex demanding critical analytical framework to assess the impact of. watersheds. Agricultural interventions typically involve opening closed naturalsystems thai may have attained certain equilibrium; Such products as food, feed,fuel, etc. are exported from the system reSUlting in more outflows than inflows. Whenthis happens, unless outflows are complemented by external inputs, resourceproductivity will gradually decline. Land degradation is a commonly used term todescribe this situation and refers to the productivity loss andj or diminishIng abilityof land to provide such esst;ntial ecological services as groundwater recharging,carbon fixation and storage, detoxification o f harmful compounds, and waterpurification. In order. to minimise the process of degradation and to maintainproductive capacity and ability to provide ecosystem services for present arid futuregenerations, various natural resource management (INRM) options have beendeveloped and implemented (Wahi et al., 2004)

publication date

  • 2006