Badia D, Alcañiz JM (1994) Basal and specific microbial respiration in semiarid agricultural soils: organic amendment and irrigation management effects. Geomicrobiology Journal 11:261-274.
Peñuelas J, Ribas M, González M, Azcón-Bieto J (1994) Respiration responses in ozone fumigated spruces. Environmental and Experimental Botany 34:443-449.
Peñuelas J, Gamon J, Freeden A, Merino J, Field C (1994) Reflectance indices associated with physiological changes in nitrogen- and water-limited sunflower leaves. Remote Sensing of Environment 48:135-146.
Peñuelas J, Matamala R (1994) Elemental composition of beans and peppers under nitrogen and water-stress. Plant Physiology (Life Science Advances) 13:273-278.
Estiarte M, Filella I, Serra J, Peñuelas J (1994) Effects of nutrient and water stress on leaf phenolic content of peppers and susceptibility to generalist herbivores (Helicoverpa armigera). Oecologia 99:392-396.
Ortiz O, Alcañiz JM (1994) Respiration potential of microbial biomass in a calcareous soil treated with sewage sludge. Geomicrobiology Journal 11:333-340.
Peñuelas J., Ribas-Carbó M., González-Meller M., Azcón-Bieto J. (1994) Water status, photosynthetic pigments, C/N ratios and respiration rates of sitka spruce seedlings exposed to 70 ppbv ozone for a summer. Environmental and Experimental Botany. 34: 443-449.EnllaçDoi: 10.1016/0098-8472(94)90027-2
Three-year old seedling of Picea sitchensis (Bong.) Carr. were exposed in large-scale chambers (solardomes) to 70 ppbv O3 for an entire summer, 7 hr day-1, under approximately ambient conditions. No macro- or microscopic injury, no fluorescence differences and no growth rate effects were found in the fumigated spruce. However, fumigated seedlings showed significantly lowered water potentials, chlorophyll concentrations, nitrogen and sulfur contents, and respiration rates. The old needles had higher cyanide-resistant respiration. These results were consistent with symptoms of forest decline affecting high-altitude forest and showed the presence of physiological changes even though there were no visible symptoms. © 1994.
Sabaté S, Gracia C (1994) Canopy nutrient of a Quercus ilex L. forest: fertilization and irrigation effects. Forest Ecology and Management 68:31-37.
Sala A., Sabate S., Gracia C., Tenhunen J.D. (1994). Canopy Structure within a Quercus ilex forest watershed: variations due to location, phenological development and water availability. Trees-Structure and Function 8:254-261
Sauret M., Rodà F., Tamponnet C. (1994) Definition of a closed and controlled higher plant compartment for a closed ecological system test bed facility. SAE Technical Papers. : 0-0.EnllaçDoi: 10.4271/941289
A new conceptual and architectural design for a Higher Plant Compartment for a Closed Ecological Life Support System in a planetary settlement is proposed. The proposed HPC is transparent to make use of sunlight, adaptable to different cultivation modes and built with modules to facilitate reconfiguration and expansion. © Copyright 1994 Society of Automotive Engineers, Inc.
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