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Soil microbiochemical properties as indicators for success of heathland restoration after military disturbance
Author(s) -
Heitkamp F.,
Glatzel S.,
Michalzik B.,
Fischer E.,
Gerold G.
Publication year - 2008
Publication title -
land degradation and development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.403
H-Index - 81
eISSN - 1099-145X
pISSN - 1085-3278
DOI - 10.1002/ldr.848
Subject(s) - ecological succession , festuca rubra , soil carbon , biomass (ecology) , environmental science , phosphorus , restoration ecology , soil water , revegetation , vegetation (pathology) , agronomy , chemistry , ecology , biology , soil science , medicine , organic chemistry , pathology
Decline of heathlands in Central Europe raises the question of successful restoration of degraded heathlands. We examined the impact of different restoration techniques on soil microbial biomass carbon (C mic ) and nitrogen (N mic ) and enzyme activity on an abandoned military training site in the Lüneburger Heaths. The aim was to determine which technique resulted in typical heathland soil conditions. The training site was in use for about 50 years. Vegetation and soils were degraded in large areas. Restoration actions were: (1) spreading of heath plaggen (sods, containing the organic layer and a few centimetres mineral soil), (2) spreading of heath plaggen and grass seeds ( Festuca filiformis Pourr.), (3) spreading of F. filiformis ‐seeds and (4) succession (episodical tree removal). Ten years after restoration, we measured pH, bulk density, abundance of roots, soil organic carbon (SOC), nitrogen (N t ), phosphorus (P t ), C mic , N mic and acid phosphatase activity (AcP) in the first 10 cm of the mineral soil. Four restoration treatments were compared with one reference site. The reference site is heathland located near the training site, where no military actions took place. At all disturbed sites, bulk density and pH proved to be higher than on the reference site. Relative to the reference site, SOC storage reached from 37 to 91 per cent, regeneration of N t was slightly lower. In contrast to the advanced development of SOC and Nt, the regeneration of C mic and N mic was much lower (15–44 per cent). The succession site showed a low pool of SOC, N t , C mic and N mic , but microbial ratios indicated a less disturbed C‐ and N‐cycle. AcP pronounced differences in nutrient demand between disturbed sites and reference. On this base, recommendations for restoration management were given. Copyright © 2008 John Wiley & Sons, Ltd.