The Southern Yucatán Peninsular Region, México: sketch maps and multi-spectral image classificationLaura C. Schneider, Peter Klepeis; Rinku Roy Chowdhury,
Yelena Ogneva-Himmelberger; Colin Vance and B. L. Turner II
Cross foci processes and dynamics
Multiple modeling approaches
Dynamic spatial simulation model
Land-use historyHousehold survey & land GPSChile ethnography & survey
Econometric analysisConservation institutions
Actor-, structure-infrastructure-based
assessment ofdrivers of land-use change
Imagery basedassessment of
land-cover change
TM imagery classificationGIS > biophysical &
social data for 3 periodsAerial photo analysis
Hurricane & climatereconstruction
Structure-function of forest
Nutrient dynamicsLandscape
fragmentation
Biophysicalresponses & feedbacks
to land-use/cover change
Model of the Southern Yucatán Peninsular Region Project
I. Sketch Maps Land Use History
Spatially explicit characterization of land change
Improvement of TM imagery classification
Upland Forest
Maize
Planted grass
Sec. Growth
II. Image Processing Methodology: Overview
Geometric Correction
Supervised Classification
Signature Evaluation
Training Site & Signature Development
NDVI
Texture Analysis
Noise Removal II: PCA
Noise Removal I: Haze Removal
Change Detection and Modeling
3 Bands
3 Bands
1 Band
III. Linking the sketch maps to multispectral TM imagery
Nov, 1984 January, 1997
YEAR LAND-USE SIZE in HECTARE
S
Chemical
Inputs
Credit/Subsidi
es
Hired Labor
1996-1997
pasture 4 Yes No No1995 pasture 4 No Yes No1988-1994
Secondary growth
4 - - -1984-1987
milpa 4 No No No1983 Old growth
mediana4 - - -
Example of information recorded for each plot in the sketch map
GPS2
GPS1
GPS3
GPS2GPS1
GPS3
Training sitePasture
Training site in 1984
IV. Improvements to the classification
Bands1 2 3 4 5 61
a. Reflectance b. Separability
V. Land Cover Classification Results
27 km
1987
27 km
1997
3 km
Parcel level classification
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)
LCCS Translation
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
VI. Acknowledgements
George Perkins Marsh Institute & George Perkins Marsh Institute & Graduate School of Geography - Clark Graduate School of Geography - Clark UniversityUniversityHarvard Forest - Harvard UniversityHarvard Forest - Harvard UniversityEl Colegio de la Fronter Sur (ECOSUR)El Colegio de la Fronter Sur (ECOSUR)[with cooperation of Center for [with cooperation of Center for Integrated Studies, Carnegie Mellon Integrated Studies, Carnegie Mellon University]University]
For a list of individual researchers and their contributions For a list of individual researchers and their contributions to the project see the SYPR web page to the project see the SYPR web page (earth.clarku.edu/lcluc)(earth.clarku.edu/lcluc)
