Measuring Forest Degradation

Unasylva No. 238
Vol. 62, 2011/2

Food and Agriculture Organization of the United Nations
Rome, 2011

Editor: R. Obstler
Editorial Advisory Board:
P. Csoka, L. Flejzor, T. Hofer, F. Kafeero, W. Kollert, R. Obstler, E. Rametsteiner, S. Rose, J. Tissari, P. van Lierop, P. Vantomme, M.L. Wilkie
Emeritus Advisers:
J. Ball, I.J. Bourke, C. Palmberg-Lerche, L. Russo
Regional Advisers:
F. Bojang, C. Carneiro, P. Durst, M. Saket

Unasylva is published in English, French and Spanish. Payment is no longer required. Free subscriptions can be obtained by sending an e-mail to

Subscription requests from institutions (e.g. libraries, companies, organizations, universities) rather than individuals are preferred to make the journal accessible to more readers.

All issues of Unasylva are available online free of charge at

Comments and queries are welcome:

Reproduction and dissemination of material in this publication for educational or other non-commercial purposes are authorized without any prior written permission from the copyright holders provided the source is fully acknowledged. Reproduction of material in this publication for resale or other commercial purposes is prohibited without written permission of the Chief, Publishing Policy and Support Branch, Office of Knowledge Exchange, Research and Extension, FAO.

Articles express the views of their authors, not necessarily those of FAO.

The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the FAO concerning the legal or development status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. The mention of specific companies or products of manufacturers, whether or not these have been patented, does not imply that these have been endorsed or recommended by FAO in preference to others of a similar nature that are not mentioned.

To order the FAO publications reviewed in Unasylva, contact Sales and Marketing Group, Office of Knowledge Exchange, Research and Extension, FAO, Viale delle Terme di Caracalla, 00153 Rome, Italy.

Tel.: (+39) 06 57051;
Fax: (+39) 06 5705 3360;
Telex: 625852/625853/610181 FAO I;

Cover photo:Landsat images demonstrating forest fragmentation: front: 1990; back, top to bottom: 1990, 2000, 2005

Courtesy of the United States National Aeronautics and Space Administration and the United States Geological Survey


(Download complete version - 2,4 MB )

Editorial (Download- 61 KB)

M. Simula and E. Mansur
A global challenge needing local response (Download- 346 KB)

L. Laestadius, P. Potapov, A. Yaroshenko and S. Turubanova
Global forest alteration, from space (Download- 209 KB)

A. Gerrand, E. Lindquist and R. D’Annunzio
Remote sensing survey updates forest-loss estimates (Download- 152 KB)

M. Herold, R.M. Román-Cuesta, V. Heymell, Y. Hirata, P. Van Laake, G.P. Asner, C. Souza, V. Avitabile and K. MacDicken
A review of methods to measure and monitor historical carbon emissions from forest degradation (Download- 289 KB)

I. Thompson
Biodiversity, ecosystem thresholds,resilience and forest degradation (Download- 199 KB)

K.P. Acharya, R.B. Dangi and M. Acharya
Understanding forest degradation in Nepal (Download- 202 KB)

C.L. Meneses-Tovar
NDVI as indicator of degradation (Download- 351 KB)

L. Laestadius, S. Maginnis, S. Minnemeyer, P. Potapov, C. Saint-Laurent and N. Sizer
Mapping opportunities for forest landscape restoration (Download- 120 KB)

R. Nasi and N. van Vliet
Measuring the abundance of wildlife populations in Central African logging concessions (Download- 235 KB)

International Year of Forests special (Download- 201 KB)

FAO Forestry (Download- 178 KB)
World of Forestry (Download- 193 KB)
Books (Download- 377 KB)