Article in Journal ()
Boy J, Godoy R, Shibistova O, Boy D, McCulloch R, Andrino de la Fuente A, Aguirre Morales M, Mikutta R & Guggenberger G (2016) Successional patterns along soil development gradients formed by glacier retreat in the Maritime Antarctic, King George Island, Revista Chilena de Historia Natural, 89 (6), Art. No.: 6.
Background: Maritime Antarctica is severely affected by climate change and accelerating glacier retreat forming temporal gradients of soil development. Successional patterns of soil development and plant succession in the region are largely unknown, as are the feedback mechanisms between both processes. Here we identify three temporal gradients representing horizontal and vertical glacier retreat, as well as formation of raised beaches due to isostatic uplift, and describe soil formation and plant succession along them. Our hypotheses are (i) plants in Antarctica are able to modulate the two base parameters in soil development, organic C content and pH, along the temporal gradients, leading to an increase in organic carbon and soil acidity at relatively short time scales, (ii) the soil development induces succession along these gradients, and (iii) with increasing soil development, bryophytes and Deschampsia antarctica develop mycorrhiza in maritime Antarctica in order to foster interaction with soil.
Temporal gradients; Chronosequences; Soil succession; Soil organic carbon; Ornithic, Mycorrhiza; Maritime Antarctica; King George Island
|Authors||Boy Jens, Godoy Roberto, Shibistova Olga, Boy Diana, McCulloch Robert, Andrino de la Fuente Alberto, Aguirre Morales Mauricio, Mikutta Robert, Guggenberger Georg|
|Publication date online||06/04/2016|
|Date accepted by journal||29/02/2016|
Revista Chilena de Historia Natural: Volume 89, Issue 6