Distribuzione degli enzimi in tre frazioni organiche del terreno a diverso peso moleculare.

Ceccanti B, Alcañiz JM, Comellas L, Puigbó A (1990) Distribuzione degli enzimi in tre frazioni organiche del terreno a diverso peso moleculare. Fertilità del Suolo e Nutrizione delle Piante 1:267-271.

Effects of fulvic acids on cadmium contamination in hydroponic culture.

Alcañiz JM, Saguer E, Barceló J (1990) Effects of fulvic acids on cadmium contamination in hydroponic culture. In Barceló J (ed) Environmental contamination. CEP Consultants, Edinburgh, pp. 531-533.

Tracers and constituents indicating the nature of organic fluxes, their origin and the effect of environmental conditions.

Gadel F, Puigbó A, Alcañiz JM, Charrieres B, Serve L (1990) Tracers and constituents indicating the nature of organic fluxes, their origin and the effect of environmental conditions. Continental Shelf Research 10:1039-1062.

Characterization of electrophoretic fractions of humic substances with different electrofocusing behaviour.

De Nobili M, Bragato G, Alcañiz JM, Puigbó A (1990) Characterization of electrophoretic fractions of humic substances with different electrofocusing behaviour. Soil Science 150:763-770.

Effects of climatic change on nutrient transfers between ecosystems.

Lledó MJ, Escarré A, Sánchez JR, Avila A, Bellot J, Belillas C, Piñol J, Rodà F (1990) Effects of climatic change on nutrient transfers between ecosystems. In Imeson AC, de Groot RS (eds) Landscape-ecological impact of climatic change on the Mediterranean region. The Hague. Discussion Report for the European Conference on Landscape Ecological Impact of Climatic Change, Lunteren, The Netherlands, 3-7 december 1989, 8pp.

A new myrmecophilic fungus Aegeritella maroccana sp. nov. (Hyphomycetales: Blastosporae).

Balazy S, Espadaler X, Wisniewski J (1990) A new myrmecophilic fungus Aegeritella maroccana sp. nov. (Hyphomycetales: Blastosporae). Mycological Research 94:273-275.

The caste system of Camponotus foreli Emery (Hymenoptera, Formicidae).

Espadaler X, Retana J, Cerdà X (1990) The caste system of Camponotus foreli Emery (Hymenoptera, Formicidae). Sociobiology 17, ser. 2:299-312.

Densitat i contingut de nutrients de les branques de faig durant el procés de descomposició.

Castell C (1989) Densitat i contingut de nutrients de les branques de faig durant el procés de descomposició. Orsis 4:55-68.

Los suelos en Fraga.

Badia D (1989) Los suelos en Fraga. Cartografía y evolución. IEA, CSIC, Zaragoza, 207 pp.

Summer fluctuations of water content in plant components in Garraf (Barcelona) garrigues and pine woodlands. Relationship with fire hazard.

Papió C (1989) Summer fluctuations of water content in plant components in Garraf (Barcelona) garrigues and pine woodlands. Relationship with fire hazard. In Di Castri F, Floret C, Rambal S, Roy J (eds) Time-scale and water stress. Proceedings 5th International Conference on Mediterranean-Type ecosystems. IUBS, Paris, pp. 233-237.

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