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Characterizing and Modeling Patterns of Deforestation and Agricultural Extensification in the Ecuadorian Amazon

Citation

Walsh, Stephen J.; Messina, Joseph P.; Crews-Meyer, Kelley A.; Bilsborrow, Richard E.; & Pan, William K. Y. (2002). Characterizing and Modeling Patterns of Deforestation and Agricultural Extensification in the Ecuadorian Amazon. In Walsh, Stephen J. & Crews-Meyer, Kelley A. (Eds.), Linking People, Place and Policy: a GIScience Approach (pp. 187-214). Boston: Kluwer Academic Publishers.

Abstract

We examine human-environment interactions in the Oriente region of the Ecuadorian Amazon through a Geographic Information Science (GISc) perspective. A remote sensing time-series is used to represent LULC (land use/land cover) dynamics, a GIS to assess resource endowments at local and regional settings, a longitudinal household survey to measure socioeconomic conditions and changes over time at the farm or household finca level, and a community-level survey administered to community leaders, farmers, teachers, women, and health workers in places ranging from tiny communities to the largest city, Lago Agrio to measure infrastructural linkages between households and their communities. Here, we (a) describe the multi-thematic, spatially explicit database assembled to address deforestation and agricultural extensification; (b) indicate changes in finca demographic and land use characteristics reported in the 1990 and 1999 household surveys; (c) use a hybrid digital classification approach for repeatable LULC characterizations for selected Landsat Thematic Mapper (TM) and Multispectral Scanner (MSS) images; (d) apply pattern metrics to classified satellite data to assess the composition and spatial organization of the landscape through trajectories of landscape structure; and (e) use a cellular automata (CA) approach to simulate LULC patterns for antecedent and future periods, given historical and current LULC patterns, as defined through the satellite time-series and hypotheses about the importance of geographic access to and spatial diffusion from the region’s central city.

URL

http://dx.doi.org/10.1007/978-1-4615-0985-1_9

Reference Type

Book Chapter

Book Title

Linking People, Place and Policy: a GIScience Approach

Author(s)

Walsh, Stephen J.
Messina, Joseph P.
Crews-Meyer, Kelley A.
Bilsborrow, Richard E.
Pan, William K. Y.

Editor(s)

Walsh, Stephen J.
Crews-Meyer, Kelley A.

Year Published

2002

Pages

187-214

Publisher

Kluwer Academic Publishers

City of Publication

Boston

Reference ID

1805