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Soil was sampled from five replicate fields of four field types (original fen meadows with characteristic vegetation (O+), original meadows that had been disturbed and from where the characteristic vegetation had disappeared (O-), successfully restored fen meadows where the characteristic vegetation had returned (R+) and unsuccessfully restored fen meadows that lacked characteristic vegetation (R-). The soil was analyzed for abiotic characteristics and nematodes. In the greenhouse, the soil was conditioned with plant species characteristic for original or for disturbed fen meadows. After harvest, the soil was analyzed for some abiotic characteristics, nematodes and ergosterol. The soil was planted with three different Carex species in a mixture of the same species, of original fen meadow plants or a mixture of disturbance plants.