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GTAP Resource #1900

"Towards An Integrated Land Use Database for Assessing the Potential for Greenhouse Gas Mitigation"
by Lee, Huey-Lin, Thomas Hertel, Brent Sohngen and Navin Ramankutty


Abstract
**NOTE** (10/31/2007)
The documents below, Global Agricultural Land Use Data for Climate Change Analysis, Global Forestry Data for the Economic Modeling of Land Use, and An Integrated Global Land Use Data Base for CGE Analysis of Climate Policy Options supersede GTAP Technical Paper No. 25. Please refer to these documents over this paper.

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This paper describes the GTAP Land Use Data Base designed to support integrated assessments of the potential for greenhouse gas mitigation. It disaggregates land use by agro-ecological zone (AEZ). To do so, it draws upon global land cover data bases, as well as state-of-the-art definition of AEZs from the FAO and IIASA. Agro-ecological zoning segments a parcel of land into smaller units according to agro-ecological characteristics, including: precipitation, temperature, soil type, terrain conditions, etc. Each zone has a similar combination of constraints and potential for land use. In the GTAP-AEZ Data Base, there are 18 AEZs, covering six different lengths of growing period spread over three different climatic zones. Land using activities include crop production, livestock raising, and forestry. In so doing, this extension of the standard GTAP Data Base permits a much more refined characterization of the potential for shifting land use amongst these different activities. When combined with information on greenhouse gas emissions, this data base permits economists interested in integrated assessment of climate change to better assess the role of land use change in greenhouse gases mitigation strategies.


Resource Details GTAP Keywords
Category: Technical Paper
Status: Published
By/In: GTAP Technical Paper No. 25
Date: 2005
Version:
Created: Lee, H. (12/7/2005)
Updated: Batta, G. (7/9/2009)
Visits: 10,764
- The GTAP Data Base and extensions


Attachments
If you have trouble accessing any of the attachments below due to disability, please contact the authors listed above.


Public Access
  File format 1. GTAP Land Use Data Base, Release 2.1, July 9, 2009  (4.2 MB)   Replicated: 0 time(s)
  File format 2. GTAP Land Use Data Base, Release 2.0, October 30, 2007  (3.7 MB)   Replicated: 0 time(s)
  File format 3. GTAP Land Use Data Base, Release 1.3, May 26, 2006  (1.3 MB)   Replicated: 0 time(s)
  File format 4. GTAP Land Use Data Base, Release 1.2, April 4, 2006  (1.3 MB)   Replicated: 0 time(s)
  File format 5. GTAP Land Use Data Base, Release 1.0, December 7, 2005  (232.8 KB)   Replicated: 0 time(s)
  File format 5. GTAP Land Use Data Base, Release 1.1, March 10, 2006  (1.2 MB)   Replicated: 0 time(s)
  File format An Integrated Global Land Use Data Base for CGE Analysis of Climate Policy   (244.8 KB)   Replicated: 0 time(s)
  File format GIS shapefiles for mapping AEZ-18  (225.1 KB)   Replicated: 0 time(s)
  File format Global Agricultural Land Use Data for Climate Change Analysis  (864.5 KB)   Replicated: 0 time(s)
  File format Global Forestry Data for the Economic Modeling of Land Use  (256.9 KB)   Replicated: 0 time(s)
  File format GTAP LU DB [12/12/2006 update] (zipped)  (2.5 MB)   Replicated: 0 time(s)
  File format GTAP Technical Paper No. 25   (1.2 MB)   Replicated: 0 time(s)
  File format SHADEMAP shapefiles for mapping AEZ-18  (135.1 KB)   Replicated: 0 time(s)


Restricted Access
No documents have been attached.


Special Instructions
Release note:

Release 2.0 (October 30, 2007):
File name = 3592.zip

***Key improvements:
A. updated SAGE land cover and land use data that include 175 crops vs. 19 reported in the Release 1.3
B. updated DGTM timberland area, forest carbon stock and land rent data
C. revised approach to eliminating land rents in non-ruminants to preserve overall factor intensities in agriculture.
D. revised approach to impose outside estimate of land rents in forestry.
E. Therefore, all GTAP headers are revised accordingly.

***Data files:
1. GTPLU18V60_AGMP_DEC06.HAR: GTAP land rents, by 18 AEZ (Ref. point E above regarding revision in this release).
2. SAGE_DATA.HAR: SAGE land cover and land use data (Ref. point A and C above regarding revisions in this release).
3. DGTM_DATA.HAR: DGTM timberland area, forest carbon stock and land rent data (Ref. point B and D above regarding revisions in this release).

**NOTE** (10/31/2007)
The documents below, Global Agricultural Land Use Data for Climate Change Analysis, Global Forestry Data for the Economic Modeling of Land Use, and An Integrated Global Land Use Data Base for CGE Analysis of Climate Policy Options supersede GTAP Technical Paper No. 25. Please refer to these documents over this paper.


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Release 1.3 (May 26, 2006):
File name = 2680.zip

***Key improvements:
A. revised timberland rent data of Canada and some Asian countries.
B. revised timberland area data of Australia.
C. Thus, GTAP "VFM" header of land rent is revised accordingly.

See ReadMe_v1.3.txt for details.

Excel format of the data base is also provided and included in 2680.zip.


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Release 1.2 (April 4, 2006):
File name = 2448.zip

***Key improvements:
A. revised timberland area and carbon stock data of all countries, with up to 8 digits precision.
B. revised tree species mapping: note that in this release there are 3 tree species--i.e., coniferous, broadleaf, and mixed--whereas earlier releases have no distinction between tree species.

See ReadMe_v1.2.txt for details.

Excel format of the data base is also provided and included in 2448.zip.


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Release 1.1 (March 10, 2006):
File name = 2408.zip

***Key improvement:
A. revised Ecuador carbon stock data of release 1.0.

See ReadMe_v1.1.txt for details.

Excel format of the data base is also provided and included in 2408.zip.


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Release 1.0 (December 7, 2005)
File name = 2366.zip

See ReadMe.txt in 2366.zip for details.


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March 8, 2007

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Farming the Planet. 2: The Geographic Distribution of Crop Areas and Yields in the Year 2000







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