||Landenmark HK, Forgan DH, Cockell CS. An Estimate of the Total DNA in the Biosphere. PLoS Biol. 2015 Jun 11 13(6):e1002168. doi: 10.1371/journal.pbio.1002168. p.5/10 3rd paragraphPubMed ID26066900
||Wang YP, Law RM, Pak B. A global model of carbon, nitrogen and phosphorus cycles for the terrestrial biosphere. Biogeosci Discussions. 2009 6: 9891–9944.
||p.5/10 3rd paragraph:"[Investigators] did not take into account leaf litter, which has been estimated to have a biomass of 122 Gt [primary source] assuming a plant genome size of 5,958 Mb, this gives a total DNA contained within litter of 7×10^30
Mb. This material is analogous to old garbage data." Gt=10^9 tonnes