Scaling issues in watersheds assessments

Nutrient balances in African land use systems across different spatial scales: A review of approaches, challenges and progress

“…589 GIS is assumed to solve the problem of convergence among different data. However, for the 612 calculations to being accurate, biophysical and socio-economical information must be 613 collected at the same spatial units, sampling designs and times (Schreier and Brown, 2001), 614 which has been hardly ever carried out. Moreover, most applications in GIS assume data to 615 be proportional to the area they occupy for extrapolation (van Noordwijk, 1999) which, as it 616 has been discussed previously, is usually not the case.…”

Overcoming Ex-Post Development Stagnation: Interventions with Continuity and Scaling in Mind

“…High project investment costs, calculated as US$2000 per household in the Eastern Anatolia Watershed Rehabilitation Project in Turkey [115], draw criticism from authors such as Chen et al [132] and Schreier & Brown [133] for their costliness to scale. The biggest financial challenge may be sufficiently reducing the costs of components of the original intervention to match the available fiscal/financial space.…”

Socio-Economic and Environmental Aspects of Farming Practices in the Peri-Urban Hinterlands of Nepal

“…Variation in farming practices followed by the farmers in different spatial locations produce different socio-economic and environmental implications (Bhatta et al, 2009a). Recently there has been a tremendous increase in the utilization of GIS into analysis of socio-economic phenomena (Bowers and Hirschfield, 1999;Joshi et al, 1999;Schreier and Brown, 2001;Evans and Moran, 2002;KC, 2005;Codjoe, 2007;Bhatta et al, 2009a). Collecting socio-economic data in the spatial context and maintaining the original location specific information could reveal patterns in the data, which would otherwise be missed (Brown, 2003).…”