Page_Init: 14:57:02.6
Page_Load1: 14:57:02.6     Page_Load2: 14:57:02.6    
Query Starts: 14:57:02.6     Query Ends: 14:57:02.6
Handling Results Starts: 14:57:02.6     Handling Results Ends: 14:57:02.6
Page_PreRender: 14:57:02.6
GeoNumbers was launched in march 2010 and there are notable gaps in the available data. Search results often contain false positives.
Please suggest missing data and references to help remedy these shortcomings (feedback box on the left).
Caution: reported numbers depend upon experimental conditions which are provided as part of the GeoNumbers entry.
Search tips: Try abbreviations, full names etc., e.g. 'Oxygen' or 'O2'.
Click a row for more details.
PropertyValueUnitsIDDetails
Energy input:cost ratio in corn production in USA 1:4.07 kcal input/output 105451
David Pimentel, H. Pimentel... more
Percentage of the water body of the Black Sea that is permanently anoxic 87 to 92 % 105450
Overmann, J., Manske... more
Percentage of the planet covered by the Black Sea 0.083 % 105449
Overmann, J., Manske... more
Percentage of sea floor covered by anoxic sediments ~0.3 % 105448
Overmann, J., Manske... more
Surface area per gram of various soil particles ≤8х10^6 clay: ~450 silt: 20 coarse sand cm^2/gram 105447
Topley and Wilson's ... more
Fraction of carbon in the earth’s crust that occurs as CaCO3 >80 % 105446
Editor: Dr. Robert A. Meyers... more
Fraction of emissions produced by human activities that are methane emissions from agriculture ~40 % 105444
Lurie-Weinberger MN, Peeri M... more
World mining and production of the most important elements as of 2011 table link Million tonnes 105442
Emsley John, Nature's... more
World mining and production of the most important elements as of 2001 table link Thousand tonnes 105389
Emsley John, Nature's... more
Expansion in global agricultural land (cropland and pasture land) between 1985 to 2005 154 (table link) Million hectares 105426
Foley JA et al., Solutions... more
Changes in global agricultural land between 1985 to 2005 table link N/A 105424
Foley JA et al., Solutions... more
Decrease in harvested area of cereal crops between 1985 and 2005 3.6 % 105427
Foley JA et al., Solutions... more
Irrigation requirements of crops ~ (<0.4L/kcal 80% of irrigated crops: >0.7L/kcal 20% of irrigated crops) Litres/kilocalorie 105440
Foley JA et al., Solutions... more
Fraction of food lost post-harvest or during processing >=40 % 105441
Foley JA et al., Solutions... more
Fraction of croplands that are irrigated ~24 % 105439
Foley JA et al., Solutions... more
Water withdrawals for human use worldwide 5000 cubic kilometers per year 101085
Science and technology... more
Area of tropical forest cleared for agriculture annually 5 to 10 Million hectares/year 105438
Foley JA et al., Solutions... more
Fraction of global greenhouse gas emissions due to agriculture 30 to 35 % 105437
Foley JA et al., Solutions... more
Fraction of global freshwater withdrawals devoted to irrigation 70 % 105436
Foley JA et al., Solutions... more
Increase in global fertilizer use in past 50 years ~500 % 105435
Foley JA et al., Solutions... more
Export