Combining sensors in landscape ecology: imagery-based and farm-level analysis in the study of human-driven forest fragmentation

Abstract

RESUMO:Apesar

Analysis of Tropical Forest Landscape Fragmentation in Batang Toru Watershed, North Sumatra

“…Upper part of each sub watershed is in the area which has highest elevation and slope relatively. So, the forest landscape did not get any disturbance caused by worst accessibility (Cabral et al 2007). This is inline with Wu et al (2014) state that road contruction and urbanization result fragmentation and landscape pattern (Matsushita et al 2005).…”

“…Further, the road increase connectivity among settlement centre that could threat forests sustainability (Fearnside 2008). However, forest in steeply and difficult accessibility area have less human disturbance (Cabral et al 2007;Munroe et al 2007). Effective conservation and restoration strategy choice would be well to reinstate the forest (Simone et al 2010).…”

Modeling landscape dynamics in an Atlantic Rainforest region: Implications for conservation

“…As observed in tropics, deforestation was higher near roads (Apan and Peterson, 1998;Tinker et al, 1998;Nagendra et al, 2003;Soares-Filho et al, 2004;Cabral et al, 2007) and in lower and less steep terrain where transport and mechanical agriculture are easier (Apan and Peterson, 1998). Deforestation was likely far from rivers, probably because those rivers are non-navigable and riparian vegetation is protected by environmental law.…”

Effects of roads, topography, and land use on forest cover dynamics in the Brazilian Atlantic Forest

“…Because the Brazilian Atlantic Forest has a long land use history, we consider that past patterns of land use also have an important role in cycles of deforestation, fragmentation, and reforestation (Geist and Lambin, 2002;Soares-Filho et al, 2004;Fearnside, 2007Fearnside, , 2008a. In addition, topography can also influence patterns of forest fragmentation and forest cover, as previously demonstrated in several regions, including the Brazilian Atlantic Forest region (Miller et al, 1996;Cabral and Fiszon, 2004;Silva et al, 2007;Cabral et al, 2007). Usually, areas with steep slopes or poor soils are less used and more likely to remain forested (Ranta et al, 1998;Resende et al, 2002;Silva et al, 2007).…”