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The Southern Yucatán Peninsular Region, México: sketch maps

The Southern Yucatán Peninsular Region, México: sketch maps and multi-spectral image classification Laura C. Schneider, Peter Klepeis; Rinku Roy Chowdhury, Yelena Ogneva-Himmelberger; Colin Vance and B. L. Turner II. Model of the Southern Yucatán Peninsular Region Project.

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The Southern Yucatán Peninsular Region, México: sketch maps

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  1. The Southern Yucatán Peninsular Region, México: sketch maps and multi-spectral image classification Laura C. Schneider, Peter Klepeis; Rinku Roy Chowdhury, Yelena Ogneva-Himmelberger; Colin Vance and B. L. Turner II

  2. Model of the Southern Yucatán Peninsular Region Project Hurricane & climate reconstruction Structure-function of forest Nutrient dynamics Landscape fragmentation Land-use history Household survey & land GPS Chile ethnography & survey Econometric analysis Conservation institutions TM imagery classification GIS > biophysical & social data for 3 periods Aerial photo analysis Imagery based assessment of land-cover change Actor-, structure-infrastructure-based assessment of drivers of land-use change Biophysical responses & feedbacks to land-use/cover change Cross foci processes and dynamics Multiple modeling approaches Dynamic spatial simulation model

  3. I. Sketch Maps • Land Use History • Spatially explicit characterization of land change • Improvement of TM imagery classification Upland Forest Sec. Growth Maize Planted grass

  4. II. Image Processing Methodology: Overview Geometric Correction Noise Removal I: Haze Removal 3 Bands Noise Removal II: PCA 3 Bands Texture Analysis 1 Band NDVI Training Site & Signature Development Signature Evaluation Supervised Classification Change Detection and Modeling

  5. YEAR LAND-USE SIZE in HECTARES Chemical Inputs Credit/ Subsidies Hired Labor 1996-1997 pasture 4 Yes No No 1995 pasture 4 No Yes Training site in 1984 No 1988-1994 Secondary growth 4 - - - 1984-1987 milpa 4 No No No 1983 Old growth mediana 4 - - - III. Linking the sketch maps to multispectral TM imagery Nov, 1984 January, 1997 GPS3 GPS3 Training site Pasture GPS2 GPS2 GPS1 GPS1 Example of information recorded for each plot in the sketch map

  6. 1 1 2 3 4 5 6 Bands IV. Improvements to the classification a. Reflectance b. Separability

  7. V. Land Cover Classification Results 1997 1987 27 km 27 km

  8. Parcel level classification 3 km

  9. IV. Results LCCS exercise • Principal Land Covers in SYPR • Wetland Forest (Bajo) • Upland Forest (Mediana) • Inundated/Semi inundated Savannas • Secondary growth • Cropland (Milpa) • Pasture • Bracken Fern (Invasive species)

  10. LCCS Translation

  11. V. Conclusions • Mutispectral imagery classification and ground level studies are enhanced by working together • Sketch Maps as tool for the integration of interdisciplinary research • Land history and TM classification improves the understanding of land use dynamics

  12. VI. Acknowledgements • George Perkins Marsh Institute & Graduate School of Geography - Clark University • Harvard Forest - Harvard University • El Colegio de la Fronter Sur (ECOSUR) • [with cooperation of Center for Integrated Studies, Carnegie Mellon University] • For a list of individual researchers and their contributions to the project see the SYPR web page (earth.clarku.edu/lcluc)

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