HR: 16:18h
AN: B14A-02 INVITED     [Abstracts]
TI: Land use/cover changes at local to regional scales that affect dynamics of hydrology and climate across the Upper Great Lakes States
AU: * Pijanowski, B C
EM: pijanowski@fnr.purdue.edu
AF: Purdue University, 195 Marsteller, West Lafayette, IN 47907
AU: Pithadia, S
EM: pithadia@fnr.purdue.edu
AF: Purdue University, 195 Marsteller, West Lafayette, IN 47907
AB: The pace and pervasiveness of anthropogenic modification of ecosystems has been dramatic since industrialization. During this period, essentially all of the earth's ecosystems have been influenced at some level by human activity. One of the most significant changes to ecosystems has resulted from changes in the use of the land. Deforestation, urbanization, and agricultural extensification are global phenomena which effect hydrological dynamics, net primary production, fiber and food production and by many accounts, regional and global climate change. Unfortunately, little is known about the spatial and temporal nature of these land use changes and what continued alterations of land use may look like. Our presentation will review an analysis of a variety of spatially explicit land use databases collected across the Upper Great Lake States of the US representing change over the last 150 years. We will examine spatial (e.g., patch sizes, fragmentation) and temporal characteristics (e.g., percent change, total change per decade) of change for major categories of land use. This information, combined with MODIS and other remote sensing products, will then be related to land surface properties for the Upper Great Lake States region. We conclude with a brief summary of implications of land use model forecasts to 2050 for hydrologic and climate dynamics in this region.
DE: 1655 Water cycles (1836)
DE: 1803 Anthropogenic effects
DE: 1600 GLOBAL CHANGE (New category)
DE: 1620 Climate dynamics (3309)
DE: 1640 Remote sensing
SC: Biogeosciences [B]
MN: 2004 AGU Fall Meeting