Review Article

Effect of Elevated CO2, O3, and UV Radiation on Soils

Table 1

Effect of elevated CO2 on soils according to type of ecosystem.

Type of ecosystemSoil propertiesReferences

Deciduous and coniferous forestsIncreased or decreased C/N [42]
Poplar cultivationNo effect on Cox,   and bulk density, increased humification, increased or reduced export of DOC, increased leaching of refractory C[35]
Rice-wheat rotationDecreased available N by up to 50% and available P by 30%[50]
Oak ecosystemNo effect on total organic carbon (TOC), 30% reduced slow-degradable C, 41% increased CMIC, no effect on pH[50]
C4 plant communities Decreased N mineralization [36]
Agrostis capillaris Increased Cox and decreased C/N[30]
Lathyrus pratensis Decreased Cox and increased C/N, decreased soil bacteria and mycorrhizal fungi[30]
Plantago lanceolata Increased net N mineralization[31]
Different ecosystemsDecrease in relative abundance of Acidobacteria Group 1 bacteria, increased fluxes of CO2, NH3, N2O, and CH4 with induction of CH4 oxidation[39]
Pine ecosystemNo effect on soil properties[39]
Sweetgum plantationIncreased Cox, no effect on soil microbial community, enzymatic activity, potential N mineralization and nitrification[33]
Seminatural grasslandsIncreased Cox and [51]
Cotton plantationIncreased Cox only under wet moisture regime, no effect on [52]
DesertsIncreased Cox and under some types of coverage, low effect on soil pH and bulk density, no effect on arbuscular mycorrhizas; no effect on fluxes of CO2, NH3, N2O, and CH4[53]