Small artificial ecosystems: response to variation of environmental factors (CO2 enrichment).
Response of "wheat plants--rhizospheric microorganisms--artificial soil"--a simple terrestrial ecosystem--to carbon dioxide increased in its atmosphere to 0.06% has been studied. It has been experimentally demonstrated that a simple ecosystem develops and functions different from its individual elements (components), in this case "plants-artificial soil" without microorganisms. With mineral nutrition unlimited and CO2 enrichment the system is capable of binding (involving into turnover) 40% more carbon than the system without microorganisms. With material balance as the basis, this article evaluates the contribution of a system's elements into its development, namely, the contribution of the photosynthesizing component and the contribution of microorganisms.
Somova
L A
LA
Institute of Biophysics, (Russian Academy of Sciences, Siberian Branch), Krasnoyarsk, Russia.
Pechurkin
N S
NS
Sarangova
A B
AB
Pisman
T I
TI
Polonsky
V I
VI
Sadovskay
G M
GM
D018533:Biomass; D002244:Carbon / Q000378:metabolism; D002245:Carbon Dioxide / Q000378:metabolism / Q000494:pharmacology*; D017753:Ecosystem; D004780:Environment, Controlled; D010788:Photosynthesis; D011549:Pseudomonas / Q000254:growth & development* / Q000378:metabolism; D012639:Seeds / Q000382:microbiology; D012988:Soil Microbiology; D014908:Triticum / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism / Q000382:microbiology*
D002245:Carbon Dioxide; D002244:Carbon