Biodiversity and Conservation

, Volume 23, Issue 7, pp 1659–1667

Disturbance to desert soil ecosystems contributes to dust-mediated impacts at regional scales

Original Paper

DOI: 10.1007/s10531-014-0690-x

Cite this article as:
Pointing, S.B. & Belnap, J. Biodivers Conserv (2014) 23: 1659. doi:10.1007/s10531-014-0690-x

Abstract

This review considers the regional scale of impacts arising from disturbance to desert soil ecosystems. Deserts occupy over one-third of the Earth’s terrestrial surface, and biological soil covers are critical to stabilization of desert soils. Disturbance to these can contribute to massive destabilization and mobilization of dust. This results in dust storms that are transported across inter-continental distances where they have profound negative impacts. Dust deposition at high altitudes causes radiative forcing of snowpack that leads directly to altered hydrological regimes and changes to freshwater biogeochemistry. In marine environments dust deposition impacts phytoplankton diazotrophy, and causes coral reef senescence. Increasingly dust is also recognized as a threat to human health.

Keywords

Biological soil crustCryptogamDesertDisturbanceDrylandDustHypolith

Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.Institute for Applied Ecology New Zealand, School of Applied SciencesAuckland University of TechnologyAucklandNew Zealand
  2. 2.U.S. Geological SurveySouthwest Biological Science CenterMoabUSA