Scale-dependent relationships between population and environment in northeastern Thailand

Stephen J Walsh; T P Evans; W F Welsh; B Entwisle; R R Rindfuss

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Scale-dependent relationships between population and environment in northeastern Thailand

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Scale-dependent relationships between population and environment in northeastern Thailand

Stephen J Walsh, T P Evans, W F Welsh, B Entwisle and R R Rindfuss

Photogrammetric Engineering and Remote Sensing, Vol.65(1), pp.97-105

1999

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Abstract

Geomatic Engineering

Social and biophysical data were collected, integrated, and analyzed to examine scale-dependent relationships between selected population and environmental variables for a study site in northeast Thailand. Data sets were generated through the use of remote sensing to characterize land-use/land-cover and plant biomass variation across the Nang Rong district; GIS to derive elevation, slope angle, and soil moisture potential; social survey data at the village level to categorize demographic variables; and a population distribution model to transform demographic data collected at discrete village locations to spatially continuous surfaces stratified by agricultural land uses. Statistical analysis employed multiple regression to estimate population density in relation to social and biophysical variables, and canonical analysis to relate population variables to environmental variables across a range of spatial scales extending from 30 to 1050 m. Findings indicate the importance of spatial scale in the study of population and the environment. Regression models reflect the scale dependence of the selected variables through plots of slope coefficients and R2 values across nine scale steps. The variation in relationships among environment and population variables, evidenced through factor loadings associated with canonical correlation, suggest that relationships are not generalizeable across the samples spatial scales.

Details

Title: Scale-dependent relationships between population and environment in northeastern Thailand
Authors: Stephen J Walsh (Author) - University of North Carolina at Chapel Hill, United States
T P Evans (Author) - Indiana University, United States
W F Welsh (Author) - University of North Carolina at Chapel Hill, United States
B Entwisle (Author) - University of North Carolina at Chapel Hill, United States
R R Rindfuss (Author) - University of North Carolina at Chapel Hill, United States
Publication details: Photogrammetric Engineering and Remote Sensing, Vol.65(1), pp.97-105
Publisher: American Society for Photogrammetry and Remote Sensing
Date published: 1999
ISSN: 0099-1112
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99449342402621
Output Type: Journal article

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