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Updated: Jun 18, 2025

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
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Mapping global land conversion pressure to support conservation planning.

James Oakleaf1, Christina Kennedy2, Nicholas H Wolff3

  • 1Global Protect Oceans, Lands and Waters, The Nature Conservancy, Fort Collins, CO, 80524, USA. joakleaf@tnc.org.

Scientific Data
|July 30, 2024
PubMed
Summary
This summary is machine-generated.

A new global map identifies areas with high land conversion pressure, highlighting over 460 million hectares of intact natural lands at risk. This tool aids proactive conservation efforts to prevent habitat loss and meet biodiversity and climate goals.

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Area of Science:

  • Environmental Science
  • Conservation Biology
  • Geographic Information Systems (GIS)

Background:

  • Effective conservation planning requires proactive identification of future land conversion hotspots.
  • Previous mapping efforts for habitat loss often concentrated on forests and overlooked diverse drivers of change.

Purpose of the Study:

  • To develop a global map of land conversion pressure, integrating multiple drivers of anthropogenic change.
  • To provide a novel metric, the conversion pressure index (CPI), for assessing cumulative anthropogenic pressure on natural lands.

Main Methods:

  • Developed a 1-km resolution global map utilizing temporal human modification data and suitability maps for large-scale development.
  • Combined historical anthropogenic change rates with projected development expansion to create the conversion pressure index (CPI).

Main Results:

  • Identified nearly 23% of land across 200 countries exhibiting high conversion pressure.
  • Highlighted over 460 million hectares of intact natural lands potentially impacted by future land conversion.

Conclusions:

  • The conversion pressure index (CPI) offers a new approach to measure cumulative anthropogenic pressure beyond simple land cover change.
  • The findings support proactive conservation strategies to mitigate future habitat loss and achieve global biodiversity and climate commitments.