Translator Disclaimer
1 February 2001 Acidification in Developing Countries: Ecosystem Sensitivity and the Critical Load Approach on a Global Scale
Author Affiliations +
Abstract

Acidification represents a growing threat to certain developing country ecosystems in tropical and subtropical climates. A methodology investigating the extent of acidification risks from sulfur emissions on a global scale is presented. Atmospheric transfer models have been used to calculate transfer and deposition of sulfur (using emissions for 1990 and a projection for 2050) and alkaline soil dust. A method to derive the relative sensitivity of terrestrial ecosystems is explained and preliminary critical load values are assigned. A range of values for critical loads and base cation deposition have been used to investigate uncertainty in maps depicting the excess of deposition above critical loads. These show an increasing risk of acidification in 2050 in extended regions of southern and eastern Asia, as well as parts of southern Africa, in comparison to 1990. Certain areas, especially in Asia, are shown at risk even when high values of critical load and base cation deposition are used.

Johan C. I. Kuylenstierna, Henning Rodhe, Steve Cinderby, and Kevin Hicks "Acidification in Developing Countries: Ecosystem Sensitivity and the Critical Load Approach on a Global Scale," AMBIO: A Journal of the Human Environment 30(1), (1 February 2001). https://doi.org/10.1579/0044-7447-30.1.20
Received: 17 December 1998; Accepted: 1 September 2000; Published: 1 February 2001
JOURNAL ARTICLE
9 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top