Relationships between soil physico-chemical properties and microbial activity along a restoration chronosequence of alpine grasslands following ski run construction

Rapid establishment of herbaceous cover after ski run construction is fundamental to limit soil erosion and restore initial ecosystem functioning. This paper reports the disturbance and development of relationships between soil physico-chemical properties and microbial activities following ski run c...

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Veröffentlicht in:	Applied soil ecology : a section of Agriculture, ecosystems & environment ecosystems & environment, 2004-09, Vol.27 (1), p.7-22
Hauptverfasser:	Gros, Raphaël, Jocteur Monrozier, Lucile, Bartoli, François, Chotte, Jean Luc, Faivre, Pierre
Format:	Artikel
Sprache:	eng
Schlagworte:	aggregate stability Agronomy. Soil science and plant productions alpine meadow soils Biochemistry and biology Biological and medical sciences carbon catabolic diversity Chemical, physicochemical, biochemical and biological properties Chronosequence chronosequences disturbed soils dry matter accumulation functional diversity Fundamental and applied biological sciences. Psychology grassland soils land restoration Life Sciences microbial activity Microbial functional diversity Microbiology N 2-fixation nitrogen content nitrogen fixation particle size distribution Physics, chemistry, biochemistry and biology of agricultural and forest soils Restoration rhizosphere root exudates roots skiing soil microorganisms soil pore system Soil quality soil respiration Soil science soil texture soil water content species diversity vegetation
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Zusammenfassung:	Rapid establishment of herbaceous cover after ski run construction is fundamental to limit soil erosion and restore initial ecosystem functioning. This paper reports the disturbance and development of relationships between soil physico-chemical properties and microbial activities following ski run construction and along a chronosequence of restored alpine grasslands (1 month and 1, 4 and 13 years). Several measurements were made on vegetation (species composition, root biomass), soil (aggregate stability, particle size distribution, total carbon and nitrogen content, porosity) and soil microbial activity (heterotrophic microbial diversity and functional structure, nitrogenase activity). During the restoration chronosequence, effective porosity was found to be positively correlated with rock fragments (>2 mm) proportion ( r=0.96; P
ISSN:	0929-1393 1873-0272
DOI:	10.1016/j.apsoil.2004.03.004