Differential response of leaf conductance, carbon isotope discrimination and water-use efficiency to nitrogen deficiency in maritime pine and pedunculate oak plants
Equipe Bioclimatologie et Ecophysiologie Forestière, INRA-Nancy, F-54280 Champenoux, France;Centre de Recherches Géodynamiques, UniversitéParis-VI, 47 avenue de Corzent, F-74203 Thonon-les-Bains, France