Titre :	Agro-écosystems, volume 2, number 3, march 1976
Type de document :	texte imprimé
Mention d'édition :	Elsevier Scientific Publishing Compagny
Editeur :	Elsevier Scientific Publishing Compagny
Année de publication :	1975
ISBN/ISSN/EAN :	CI-11910
Note générale :	This bulletin contains the following papers: 1) the study of ecosystems/ 2) comparisons of phytosociological methods od classification on a desert grassland site/ 3) Energy and food production/ 4) the mineral nitrogen content of soils under semi - natural grass stands/ 5) Assessment based on residues in owls of environmental contamination arising from the use of mercury compounds in british agriculture.
Langues :	Anglais (eng)
Mots-clés :	Ecosystème  Energie  Production agricole  Agriculture  Pédologie  Evaluation  Pâturage  Agroécologie  Bibliographie
Index. décimale :	581.7 Ecologie végétale. Plantes classées en fonction de leur environnement
Résumé :	This bulletin contains the following papers: 1) the study of ecosystems/ 2) comparisons of phytosociological methods od classification on a desert grassland site/ 3) Energy and food production/ 4) the mineral nitrogen content of soils under semi - natural grass stands/ 5) Assessment based on residues in owls of environmental contamination arising from the use of mercury compounds in british agriculture.
Note de contenu :	This bulletin contains the following papers: 1) the study of ecosystems/ 2) comparisons of phytosociological methods od classification on a desert grassland site/ 3) Energy and food production/ 4) the mineral nitrogen content of soils under semi - natural grass stands/ 5) Assessment based on residues in owls of environmental contamination arising from the use of mercury compounds in british agriculture.

Agro-écosystems, volume 2, number 3, march 1976 [texte imprimé]  . -  Elsevier Scientific Publishing Compagny . - Elsevier Scientific Publishing Compagny, 1975.
ISSN : CI-11910
This bulletin contains the following papers: 1) the study of ecosystems/ 2) comparisons of phytosociological methods od classification on a desert grassland site/ 3) Energy and food production/ 4) the mineral nitrogen content of soils under semi - natural grass stands/ 5) Assessment based on residues in owls of environmental contamination arising from the use of mercury compounds in british agriculture.
Langues : Anglais (eng)

Mots-clés :	Ecosystème  Energie  Production agricole  Agriculture  Pédologie  Evaluation  Pâturage  Agroécologie  Bibliographie
Index. décimale :	581.7 Ecologie végétale. Plantes classées en fonction de leur environnement
Résumé :	This bulletin contains the following papers: 1) the study of ecosystems/ 2) comparisons of phytosociological methods od classification on a desert grassland site/ 3) Energy and food production/ 4) the mineral nitrogen content of soils under semi - natural grass stands/ 5) Assessment based on residues in owls of environmental contamination arising from the use of mercury compounds in british agriculture.
Note de contenu :	This bulletin contains the following papers: 1) the study of ecosystems/ 2) comparisons of phytosociological methods od classification on a desert grassland site/ 3) Energy and food production/ 4) the mineral nitrogen content of soils under semi - natural grass stands/ 5) Assessment based on residues in owls of environmental contamination arising from the use of mercury compounds in british agriculture.