Olson's Major World Ecosystems Ranked by Carbon in Live Vegetation:
An Updated Database Using the GLC2000 Land Cover Product

TABLES

Please cite as: Olson's Major World Ecosystems Ranked by Carbon in Live Vegetation: An Updated Database Using the GLC2000 Land Cover Product, NDP-017b. Available at [http://cdiac.ornl.gov/epubs/ndp/ndp017/ndp017b.html] from the Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A.

Tables 1-4

1. Files in this numeric data package
2. Variable formats of max_c.VAT
3. Variable formats of med_c.VAT
4. Crosswalk table between GLC2000 land-cover classification and the Olson classification

Table 1. Files in this numeric data package

File No.	File name	File size (bytes)	File description
1	ndp017b.txt	15534 k	Descriptive text file
2	max_c.e00.gz	1642992 k	Maxiumum biomass carbon estimates in compressed ARC/INFO export file
3	max_c.img.gz	675396 k	Maxiumum biomass carbon estimates in compressed ERDAS IMAGINE file
4	max_c.tif.gz	664179 k	Maxiumum biomass carbon estimates in compressed TIFF file
5	med_c.e00.gz	1653103 k	Mean biomass carbon estimates in compressed ARC/INFO export file
6	med_c.img.gz	681797 k	Mean biomass carbon estimates in compressed ERDAS IMAGINE file
7	med_c.tif.gz	671245 k	Mean biomass carbon estimates in compressed TIFF file
8	glc2000s5m.e00.gz	2197615 k	GLC2000 land cover classification in compressed ARC/INFO export file
9	glc2000b.e00.gz	2246551 k	Revised GLC2000 land cover classification in compressed ARC/INFO export file
10	eco_worldc.e00.gz	18623823 k	FAO Ecological Zone data in compressed ARC/INFO export file
11	eco_grid.e00.gz	594298 k	Gridded FAO Ecological Zone data in compressed ARC/INFO export file
12	glceco.e00.gz	2299727 k	Combined GLC2000 land cover data and FAO Ecological Zone data in compressed ARC/INFO export file
13	updated_olson_max.jpg	146526 k	Graphic map showing global maximum biomass C estimates
14	updated_olson_med.jpg	146357	Graphic map showing global mean biomass C estimates
15	olson_carbon_gibbs02107.xls	22016 k	Microsoft Excel spreadsheet containing crosswalk between GLC2000 land cover classes and Olson ecosystem types

Table 2. Variable formats for max_c.vat in max_c.e00.gz

Start Col	Item Name	Data Width	Display Width	Data Type*	Definition and comments
1	VALUE	4	10	B	Maximum estimates of biomass carbon (metric tons C)
5	COUNT	4	10	B	Number of gridcells assigned to value

*Data types are B-binary, C-character, F-float, I-integer, and N-numeric. F and N data types are real numbers with different precisions (precision is system dependent).



Table 3. Variable formats for med_c.vat in med_c.e00.gz

Start Col	Item Name	Data Width	Display Width	Data Type*	Definition and comments
1	VALUE	4	10	B	Mean estimates of biomass carbon (metric tons C)
5	COUNT	4	10	B	Number of gridcells assigned to value

*Data types are B-binary, C-character, F-float, I-integer, and N-numeric. F and N data types are real numbers with different precisions (precision is system dependent).



Table 4. Crosswalk between GLC2000 land-cover classification and the Olson classification

Class No.	GLC2000 Land cover class	FAO Ecological Zone	Olson ecosystem category	Revised Medium Carbon Values* (metric tons C/ha)	Revised Maximum Carbon Values* (metric tons C/ha)
1	Tree Cover, Broadleaved Evergreen	Temperate	Temperate Broad-leaved Forest	90	140
1	Tree Cover, Broadleaved Evergreen	Tropical	Tropical Broad-leaved Forest	120	250
2	Tree Cover, Broadleaved Deciduous, Closed	Boreal	Taiga	70	125
2	Tree Cover, Broadleaved Deciduous, Closed	Temperate	Temperate Broad-leaved Forest	90	140
2	Tree Cover, Broadleaved Deciduous, Closed	Tropical	Tropical Broad-leaved Forest	120	250
3	Tree Cover, Broadleaved Deciduous, Open	Boreal	Taiga	70	125
3	Tree Cover, Broadleaved Deciduous, Open	Temperate	Temperate Broad-leaved Forest	90	140
3	Tree Cover, Broadleaved Deciduous, Open	Tropical	Tropical Dry Forest	60	90
4	Tree Cover, Needleleaved Evergreen	Boreal	Taiga	70	125
4	Tree Cover, Needleleaved Evergreen	Temperate	Other Conifer	130	200
4	Tree Cover, Needleleaved Evergreen	Tropical	Tropical Broad-Leaved Forest	120	250
5	Tree Cover, Needleleaved Deciduous	Boreal	Taiga	70	125
5	Tree Cover, Needleleaved Deciduous	Temperate	Other Conifer	130	200
5	Tree Cover, Needleleaved Deciduous	Tropical	Tropical Broad-Leaved Forest	120	250
6	Tree Cover, Mixed-leaf type	Boreal	Taiga	70	125
6	Tree Cover, Mixed-leaf type	Temperate	Mixed Woods	70	140
6	Tree Cover, Mixed-leaf type	Tropical	Tropical Broad-Leaved Forest	120	250
7	Tree Cover, regularly flooded, fresh and brackish water	Boreal	Taiga	70	125
7	Tree Cover, regularly flooded, fresh and brackish water	Temperate	Temperate Broad-leaved Forest	90	140
7	Tree Cover, regularly flooded, fresh and brackish water	Tropical	Tropical Broad-Leaved Forest	120	250
8	Tree Cover, regularly flooded, saline water	Boreal	Taiga	70	125
8	Tree Cover, regularly flooded, saline water	Temperate	Temperate Broad-leaved Forest	90	140
8	Tree Cover, regularly flooded, saline water	Tropical	Tropical Broad-Leaved Forest	120	250
9	Mosaic: Tree cover/other natural vegetation	Boreal, Temperate, and Tropical	Fields/Woods Mosaics	30	50
10	Tree cover, burnt	Boreal, Temperate, and Tropical	Secondary Forest/Field Mosaics	40	80
11	Shrub cover, closed-open, evergreen	Boreal, Temperate and Tropical	Grassland or Shrubland complex	9	30
12	Shrub cover, closed-open, deciduous	Boreal, Temperate and Tropical	Grassland or Shrubland complex	9	30
13	Herbaceous cover, closed-open,	Boreal, Temperate and Tropical	Grassland or Shrubland complex	9	30
14	Sparse Herbaceous or sparse shrub cover	Boreal, Temperate and Tropical	Grassland or Shrubland complex	9	30
15	Regularly flooded shrub and/or herbaceous cover	Boreal, Temperate and Tropical	Grassland or Shrubland complex	9	30
16	Cultivated and managed areas	Boreal, Temperate and Tropical	Non-irrigated croplands	8	20
17	Mosaic: Cropland/Tree cover	Boreal, Temperate and Tropical	Secondary Forest/field mosaics	40	80
18	Mosaic: Cropland/Shrub or Grass cover	Boreal, Temperate and Tropical	Field/woods mosaics	30	50
19,21,22	Bare, Snow and Ice, and Artificial Surfaces	Boreal, Temperate and Tropical		0	0

NOTE: C values for Olson's "main taiga" and "southern taiga" were averaged because there was no clear way to distinguish between the categories in the GLC2000.