Edafología. Volumen 5. Diciembre 1998. pag 47-57.
FLUJOS DE CH4 y N2O EN UN SUELO FORESTAL DEL NORTE DE ESPAÑA BAJO DIFERENTES MANEJOS DE RESTOS DE CORTA
P. Pérez-Batallón; G. Ouro; A. Merino y F. Macías
Departamento de Edafología y Química Agrícola. Escuela Politécnica Superior. Universidad de Santiago de Compostela. 27002 Lugo (*e-mail: amerino(lugo.usc.es)
In this paper the influence of different harvesting practices on CH4 and N2O fluxes are discussed. The study was carried out in a plantation of Pinus radiata, located in the province of Lugo (Spain), where the three techniques of seed-bed preparation were carried out. The uncut soil acted as a sink for CH4. The dynamics of this gas were substantially affected following harvesting, although the response varied among the different treatments. The removal of logging residues enhanced the potential for CH4 oxidation in the soil, whereas the incorporation of logging residues, on the contrary, led to higher CH4 emissions. The N2O fluxes were always very low and were slightly modified by the harvesting practices used.
Key words: methane, nitrous oxide, amonium, nitrate, harvesting management, logging residues, forest soils.
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