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Comparison of Vegetation and CO 2 Dynamics Between a Restored Cut‐Away Peatland and a Pristine Fen: Evaluation of the Restoration Success
Author(s) -
Soini Pirita,
Riutta Terhi,
YliPetäys Mika,
Vasander Harri
Publication year - 2010
Publication title -
restoration ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.214
H-Index - 100
eISSN - 1526-100X
pISSN - 1061-2971
DOI - 10.1111/j.1526-100x.2009.00520.x
Subject(s) - peat , vegetation (pathology) , environmental science , sink (geography) , detrended correspondence analysis , hydrology (agriculture) , growing season , ecology , physical geography , ordination , geography , geology , biology , medicine , pathology , cartography , geotechnical engineering
We studied the restoration success of a cut‐away peatland 10 years after restoration by comparing the vegetation and CO 2 dynamics with those of a pristine peatland of similar nutrition level and climate. Vegetation and CO 2 dynamics were monitored during one growing season. We used DCA (detrended correspondence analysis) and diversity indices to study the vegetation composition within and between the sites, and non‐linear regression models to estimate the seasonal CO 2 fluxes and balances of the sites. Based on both DCA and diversity indices, the study plots in the restored site differed more in the vegetation composition than the study plots in the pristine site. The variation in the CO 2 fluxes and balance was greater in the restored than in the pristine site, resulting from the heterogeneous vegetation in the restored site. The seasonal net CO 2 balance was positive (sink) at both sites, the restored site binding on average 500 ± 410 g CO 2 /m 2 and the pristine site 390 ± 265 g CO 2 /m 2 (statistically not different, p = 0.575). The results indicate that the restoration of the vegetation composition is still incomplete but the vegetation coverage is sufficient for the restored site to function as a sink of atmospheric CO 2 .