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Updated: Mar 3, 2026

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM
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Forest cover mapping in post-Soviet Central Asia using multi-resolution remote sensing imagery.

He Yin1,2, Asia Khamzina3, Dirk Pflugmacher4

  • 1Center for Development Research (ZEF), University of Bonn, Walter-Flex-Str. 3, 53113, Bonn, Germany.

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Summary

Central Asia forest cover (CAFC) maps reveal only 1.24% forest coverage, highlighting a scarcity of forest resources. This study provides crucial data for conservation and reforestation efforts in the region.

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Area of Science:

  • Forestry
  • Remote Sensing
  • Environmental Science

Background:

  • Cross-border forest resource data for Central Asia is scarce despite advances in forest mapping.
  • Accurate, consistent forest cover information is vital for conservation and policy-making in the region.

Purpose of the Study:

  • To create consistent Central Asia forest cover (CAFC) maps using multi-resolution satellite imagery.
  • To assess the accuracy of the developed CAFC maps against existing global products and national reports.
  • To provide reliable data for biodiversity conservation and reforestation initiatives.

Main Methods:

  • Utilized multi-resolution satellite imagery from Landsat and MODIS for the period 2009-2011.
  • Developed spectral-temporal metrics from Landsat data to predict sub-pixel forest cover on the MODIS scale.
  • Validated the resulting forest cover map using accuracy assessments.

Main Results:

  • Central Asia has a low forest cover of 1.24%.
  • The developed CAFC map showed good agreement with the Global Forest Change product but differed significantly from MODIS Vegetation Continuous Fields and national reports.
  • National reports, particularly from arid countries like Turkmenistan and Uzbekistan, tended to overestimate forest cover.

Conclusions:

  • Multi-resolution imagery is effective for regional forest cover assessment, especially in drylands.
  • The CAFC maps offer a reliable, cost-efficient resource for regional environmental management.
  • The findings underscore the need for standardized methodologies in forest resource assessment.