Anthropogenic Biomes of the World
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Residential Irrigated Cropland


Residential Irrigated Cropland

Residential Irrigated Cropland is the cropland anthrome with the highest population density.  Irrigation is a common practice despite the high median annual precipitation which helps to support half of this anthrome which cultivates at least 36% of its land.  This heterogeneous anthrome incorporates a small amount of pasture, forest, and urban area with vast swaths of agriculture.

Three of the top five constituent ecoregions are tropical broadleaf forests though they exist in such small percentages of the whole anthrome they are likely of little significance.

Unfortunately or fortunately depending on one's perspective, great areas of the residential irrigated cropland have been clear cut and converted to large scale agriculture and pasture to support the local and regional populations.

Climate

Median* Min Max
Mean Annual Temperature 18.3 °C -7.3 °C 30.3°C
Mean Annual Precipitation 914
mm/yr
0.6
mm/yr
5415
 mm/yr
 
Net Primary Production Global Total Median Min Max
1015g C/yr (%) kg C/m²/yr
1.2 (2.4%)
0.46 0 2.08

Population

Global Total Median Min Max
billion persons (%) persons/km²
Total 0.27 (4.2%)
80 10 3288
Non-Urban 0.14 (4.5%)
62 10 100
 

Land Use & Land Cover

 

Global Total
Median Min Max
million km2 (%) (cover %)
Total Land Area 2.39 (1.8%) N/A
Urban 0.03 (5.7%) 0.0% 0.0% 17%
Cultivated 0.97 (6.5%) 37% 0.0% 100%
Irrigated 0.48 (18%) 12% 0.0% 100%
Rice Paddy 0.24 (14%) 0.8% 0.0% 100%
Pasture 0.4 (1.4%) 6.6% 0.0% 100%
Tree Cover 0.44 (1.6%) 11% 0.0% 78%
Bare Earth 0.29 (0.8%) 2.0% 0.0% 100%
*Median, Minimum and Maximum estimates were calculated after removing the top and bottom 2% of cells in each anthrome based on the Euclidean distance across the means of variables used for anthrome classification.
 

Major Ecoregions (Olson)

% cover
Jian-Nan Subtropical Evergreen Forest 5.2
Central Indochina Dry Forest 4.5
Eastern Highlands Moist Deciduous Forest 3.1
Northwestern Thorn Scrub Forest 2.3
Pontic Steppe 1.9
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Photo: SI-Ziga, 4/2007, public domain
http://upload.wikimedia.org/wikipedia/commons/5/5b/Pernat1.jpg

Created by:

Andrew Petit de Mange & Kelly Kennedy

Based on: Anthropogenic Biomes of the World

Ellis, E. C. and N. Ramankutty. 2008. Putting people in the map: anthropogenic biomes of the world. Frontiers in Ecology and the Environment 6(8):439-447 doi:10.1890/070062. [download]