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Martin-Pierre Lavigne, Alain N. Rousseau, Richard Turcotte, Anne-Marie Laroche, Jean-Pierre Fortin, and Jean-Pierre Villeneuve

showed that this tool can be used on large-scale watersheds for land management planning with respect to water resources. Annual, spring, and summer runoff simulation results were consistent with observations from experimental paired watersheds. More simulation studies could be made to validate the predictive power of GIBSI for smaller deforested area, as well as for the long-term effects of vegetation growth. This could be coupled with an application on paired watersheds. Finally, the integration of

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In-Young Yeo, Steven I. Gordon, and Jean-Michel Guldmann

to support management decision making with more scientific data. Even with the use of models, land-use planning and decisions for watershed protection are often made inefficiently. Decisions regarding land-use conservation and the best management practices are often derived based on scenarios developed with regard to 1) land-use suitability, 2) generalized concepts of and guidelines for preservation, and 3) land-use projections for future development. Generally, a runoff model simulates the

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Ademola K. Braimoh and Paul L. G. Vlek

the area for land-use planning and environmental management purposes. The objectives of this study are to quantify changes in land cover, to evaluate the suitability of Markov chain analysis for descriptive land-cover modeling, and to generate a short-term projection of land-cover distribution in Tamale by 2006. Policy implications of the findings will be highlighted. 2. Methods 2.1. Land-cover mapping Land-cover mapping was carried out using multitemporal Landsat Thematic Mapper (TM) images. The

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Ademola K. Braimoh and Paul L. G. Vlek

1. Introduction Land use is determined by biophysical and social variables interacting in space and time ( Turner et al., 1995 ). Descriptive models of land-use and land-cover change (LUCC) are useful when trying to determine the relationship between LUCC and the driving forces. They also improve our understanding of the functioning of land-use systems for planning and policy formulation. To be of value in planning, models that quantify such relationships at different spatial scales are

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Deborah A. McGrath, Jonathan P. Evans, C. Ken Smith, David G. Haskell, Neil W. Pelkey, Robert R. Gottfried, Charles D. Brockett, Matthew D. Lane, and E. Douglass Williams

Cumberland Plateau is largely fragmented with little communication between adjacent private landowners ( Figure 3 ). Consequently, there is no landscape-level, land-use planning, and due to private ownership, little government oversight of harvesting practices. 2.2. The SAA Demonstration Project Using aerial and satellite imagery, we created computer-generated maps of land use and forest cover for the SAA study area for the following years: 1981, 1997, and 2000. From these maps we were able to track and

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Jeffrey A. Hicke, David B. Lobell, and Gregory P. Asner

to other countries. Transportation and export effects appear as sinks in atmospheric inversion modeling studies and must be accounted for when interpreting such results ( Pacala et al., 2001 ). In future research, we plan to assess how shifts among crop types and management practices (e.g., irrigation) have influenced our estimated NPP trends. In addition, the dataset presented here will be combined with satellite-derived NPP to evaluate the contributions of cropland NPP and area changes to

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Christopher Potter, Pusheng Zhang, Steven Klooster, Vanessa Genovese, Shashi Shekhar, and Vipin Kumar

hydrological regime and water resources of the former USSR rivers. Russ. Meteorol. Hydrol. 11 : 89 – 99 . Glantz , M. H. , R. W. Katz , and N. Nicholls . (Eds.), . 1991 . Teleconnections Linking World-wide Climate Anomalies . Cambridge University Press, New York, 527 pp . Hamlet , A. F. and D. P. Lettenmaier . 1999 . Columbia River streamflow forecasting based on ENSO and PDO climate signals. ASCE J. Water Res. Plan. Manage. 125 : 333 – 341 . Heredia Calderon , E. and R

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