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Table 1.1. Comparative table of reporting systems as defined by the Millennium Assessment

"Note that these systems often overlap. Statistics for different systems can therefore be compared, but cannot be totaled across systems as this will result in partial double-counting."

System
and
subsystem 		Area (million km2) % of terrestrial surface of the globe Population GDP per capita1 Infant
Mortality Rate2		 Mean NPP (KgC/m2/yr)
3		 % System covered by PA's4 % Area trans-
formed5
Density (people per square km) Growth rate (% 1990-2000)
Urban Rural
1 Gross Domestic Product.
2 Infant Mortality Rate (deaths of <1yr old children per thousand live births).
3 Mean Net Primary Productivity.
4 Includes only natural or mixed classes of Protected Areas in IUCN categories I to VI.
5 Area Transformed - For all systems except forest/woodland, area transformed is calculated from land depicted as cultivated or urban areas by GLC2000 land cover data set. The area transformed for forest/woodland systems is calculated as the % change in area between potential vegetation (forest biomes of the WWF Ecoregions) and current forest/woodland areas in GLC2000. Note: 22% of the forest/woodland system falls outside forest biomes and is therefore not included in this analysis.
6 % total surface of the globe.
7 Population density, growth rate, GDP per capita and growth rate for the Inland Water system have been calculated with an area buffer of 10km
8 Excluding Antarctica
Marine 349.3 68.66 - - - - - 0.15 0.3 -
Coastal 17.9 4.5 1105 70 15.9 8960 41.5   7  
Terrestrial 6.7 4.5 1105 70 15.9 8960 41.5 0.52 4 11
Marine 11.2 2.26 - - - - - 0.14 9 -
Inland water7 10.3 7.0 817 26 17 7300 57.6 0.36 12 11
Forest/
woodlands		 42.2 28.6 472 18 13.5 9580 57.7 0.68 10 42
Tropical/
subtropical		 23.5 15.9 565 14 17 6854 58.3 0.95 11 34
Temperate 6.3 4.3 320 7 4.4 17109 12.5 0.45 16 67
Boreal 12.4 8.4 114 0.1 -3.7 13142 16.5 0.29 4 25
Dryland 60.9 41.3 750 20 18.5 4930 66.6 0.26 7 18
Hyperarid 9.8 6.6 1061 1 26.2 5930 41.3 0.01 11 1
Arid 15.7 10.6 568 3 28.1 4680 74.2 0.12 6 5
Semiarid 22.3 15.3 643 10 20.6 5580 72.4 0.34 6 25
Dry sub-humid 12.9 8.7 711 25 13.6 4270 60.7 0.49 7 35
Island 9.9 6.7 1020 37 12.3 11570 30.4 0.54 17 17
Island states 7.0 4.8 918 14 12.5 11148 30.6 0.45 18 21
Mountain 33.2 22.2 63 3 16.3 6470 57.9 0.42 14 12
300-1000m 15.1 10.2 58 3 12.7 7815 48.2 0.47 11 13
1000-2500m 11.9 8.1 69 3 20.0 5080 67.0 0.45 14 13
2500-4500m 3.9 2.7 90 2 24.2 4144 65.0 0.28 18 6
> 4500m 1.8 1.2 104 0 25.3 3663 39.4 0.06 22 0.3
Polar 23.0 15.6 161 0.06 -6.5 15401 12.8 0.06 428 0.38
Cultivated 35.6 24.1 786 70 14.1 6810 54.3 0.52 6 47
Pasture 0.1 0.1 419 10 28.8 15790 32.8 0.64 4 11
Cropland 8.3 5.7 1014 118 15.6 4430 55.3 0.49 4 62
Mixed (crop & other) 27.1 18.4 575 22 11.8 11060 46.5 0.6 6 43
Gobal 510 - 681 13 16.7 7309 57.4 - 4 38

Source: Millennium Ecosystem Assessment
 Synthesis Report (2005),
Chapter 1, p.31
(Conditions and Trends Working Group Report, C.SDM Summary)