Global Change and Terrestrial Ecosystems

A Core Project of the International Geosphere-Biosphere Programme

Global Change and Terrestrial Ecosystems (GCTE) is one of the eight Core Projects of the International Geosphere-Biosphere Programme (IGBP). GCTE's has twin objectives:

To predict the effects of changes in climate, atmospheric composition and land-use on terrestrial ecosystems, including (a) agriculture, forestry and soils, and (b) ecological complexity.

To determine how these effects can lead to feedback to the physical climate systems.

To address these objectives, GCTE is structured as four major themes or Foci; the work plan for each is published in the GCTE Operational Plan (IGBP Report No. 21, Stockholm, 1992), copies of which are available from the GCTE Core Project or Focus 3 Offices (see below). GCTE Focus 3 is devoted to the study of global change impact on agriculture, managed forests and soils, while Foci 1, 2 and 4 deal with ecosystem physiology, change in ecosystem structure, and global change and ecological complexity, respectively.


GCTE Focus 3: Global Change Impact on Agriculture, Forestry and Soils

GCTE Focus 3 is devoted to studying how global change will effect managed ecosystems, and in particular the effects on yield. The Focus, led by Prof. Peter Gregory, comprises five interrelated subject areas, or Activities, dealing with (i) major monocrops, pastures and rangelands, (ii) managed forests (iii) multi-species agroecosystems; and the cross-cutting issues of (iv) pests, diseases and weeds, and (v) soils. Each Activity encompasses several Tasks, designed to achieve the Focus' objectives; a full description of the Activities and Tasks is given in the Operational Plan.


Copies of the GCTE Operational Plan, and further details about GCTE in general, may be obtained from:

Dr Will Steffen, GCTE Executive Officer

GCTE Core Project Office, CSIRO, PO Box 84, Lyneham, ACT 2602, AUSTRALIA

Tel +61 6 242 1755; Fax +61 6 241 2362, email:


For further details about GCTE Focus 3, please contact:

GCTE Focus 3 Office, Centre for Ecology and Hydrology, Maclean Building, Crowmarsh Gifford, Wallingford, Oxon OX10 8BB, UK

Tel +44 1491 692410, Fax +44 1491 692313