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Titolo:
Initial mineralization of organic matter in a forest plantation soil following different logging residue management techniques
Autore:
Perez-Batallon, P; Ouro, G; Macias, F; Merino, A;
Indirizzi:
Univ Santiago, Escuela Politecn Super, Dept Agr Chem & Soil Sci, Lugo 27002, Spain Univ Santiago Lugo Spain 27002 pt Agr Chem & Soil Sci, Lugo 27002, Spain
Titolo Testata:
ANNALS OF FOREST SCIENCE
fascicolo: 8, volume: 58, anno: 2001,
pagine: 807 - 818
SICI:
1286-4560(200112)58:8<807:IMOOMI>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
MICROBIAL BIOMASS; ROOT RESPIRATION; CO2 EVOLUTION; PINUS-RADIATA; BEECH FOREST; NITROGEN MINERALIZATION; SITE PREPARATION; NORTHERN SPAIN; COASTAL SAND; LEAF-LITTER;
Keywords:
forest soils; soil organic matter; Pinus radiata; microbial biomass; carbon; nitrogen; mineralization; nitrate; ammonium;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Merino, A Univ Santiago, Escuela Politecn Super, Dept Agr Chem & Soil Sci,Lugo 27002, Spain Univ Santiago Lugo Spain 27002 m & Soil Sci, Lugo 27002, Spain
Citazione:
P. Perez-Batallon et al., "Initial mineralization of organic matter in a forest plantation soil following different logging residue management techniques", ANN FOR SCI, 58(8), 2001, pp. 807-818

Abstract

The influence of tree harvesting and site preparation on inorganic N, net N mineralization and nitrification, microbial biomass and emission of CO2 from soil were evaluated in a field experiment. The study was carried out ina plantation of Pinus radiata D. Three different site preparation techniques were used: a) whole tree harvesting with removal of logging residues andforest floor, b) mechanical incorporation of logging residues and forest floor into the upper 20 cm of the mineral soil, and c) logging residues lefton-site. The incorporation of residues into the mineral horizon favoured Nimmobilization. This effect was accompanied by a higher metabolic activity, as indicated by the higher microbial biomass and CO2 emissions, as well as the higher N contents in decomposing logging residues. In the plot with residues left on site, no changes in soil microbial biomass were observed, although there was a high degree of N immobilization.

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Documento generato il 25/09/20 alle ore 12:42:26