Investigating the ability of Dyna-CLUE Model in Analyzing and Predicting Future Land Use Patterns in Simineh River Basin

Document Type : Research Article

Authors

1 PhD in Watershed Science and Engineering, Faculty of Natural Resources, University of Tehran, Tehran

2 Professor, Faculty of Natural Resources, University of Tehran, Tehran

3 Assistant, Faculty of Natural Resources, University of Tehran, Tehran

4 Professor, Faculty of Civil Engineering, Sharif University of Technology, Tehran

5 Associate Professor, Faculty of Natural Resources, University Tehran, Tehran

6 Researchers from the Meteorologie Institute, Freie Universität, Berlin

Abstract

Land use changes are the result of complex interactions between many processes. Many models have been developed in recent decades to understand these dynamics. The present study, using Landsat satellite images and applying the maximum probability classification algorithm, examined the land use pattern of Simine River basin in 2000, 2005, 2010 and 2017 and identifies the historical transformations of them. Finally, the various scenarios of land use change in 2040 are examined using the latest version of the Dyna-CLUE land use model. The results of modeling indicate Dyna-CLUE model performance in analyzing and predicting future land use patterns at the basin level and its calibration and validation coefficients in 2005 and 2010 are 0.84 and 0.69, respectively. Analysis of land use changes between 2000 and 2017 has shown that the most important change was the conversion of rangeland lands to irrigated lands so that about 343 square kilometers of rangeland lands (equivalent to 13%) decreased and irrigated agricultural lands increased by about 127%. Also, the spatial arrangement of land use classes in 2040 in the form of three optimistic, pessimistic and the continuation of the previous trend scenarios and its outputs have shown that the future pattern of most land use classes in the region has not changed much compared to historical spatial patterns and shows a marginal spatial expansion. The results of this study can be used as an effective tool for environmental planners to manage the future infrastructure of the Simine River basin.

Keywords

References

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Iranian journal of Ecohydrology
Volume 8, Issue 1
April 2021
Pages 73-87

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History

  • Receive Date: 27 August 2020
  • Revise Date: 30 December 2020
  • Accept Date: 30 December 2020
  • First Publish Date: 08 March 2021
  • Publish Date: 21 March 2021

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