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Article
La deuxième édition de l'annuaire rassemble 1200 adresses de pastoralistes des zones méditerranéennes et tropicales. En fin d'ouvrage, se trouve la liste des membres du Réseau Parcours répartis dans des thèmes différents : végétation, animal, ho[...]Ouvrage
Communication à un Congrès (avec Actes)
F. Muñoz | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1991In order to achieve the greatest possible standardization of the analysis techniques, two analysis chains were organized in 1985-1989 in the main laboratories of CIHEAM member countries. The results show that it is desirable the search for the m[...]Communication à un Congrès (avec Actes)
J.-L. Tisserand | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1991The tables on feeding value for ruminants of Mediterranean forages and by-products are the result of a thirteen year joint effort of 28 laboratories from twelve Mediterranean countries. They include over 600 references concerning 152 plants and [...]Communication à un Congrès (avec Actes)
E. Luis ; R. Tárrega ; T. Zuazúa ; L. Calvo | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Three shrubland zones have been studied with the aim of knowledge the regeneration of shrub vegetation community after the impact of several degenerative and drastic processes as rooting up, cutting or fire. Four control plots of about 100 m2 we[...]Communication à un Congrès (avec Actes)
M.A. Esteve ; L. Ramírez | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The plant communities of the coastal area of Calblanque (Murcia, SE. Spain) have been evaluated from an ecological approach, using criteria of rarity inside the area (floristic singularity), rarity outside the area (endemismes and threat degree)[...]Communication à un Congrès (avec Actes)
I. Santa Regina ; J.F. Gallardo | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Data of the bioelement cycles from the three forest systems are shown. The ecosystems are: a climax Quercus pyrenaica forest; a paraclimax Costanea sativa grove and a disclimax Pinus sylvestris forest. The three sites are near one from each othe[...]Communication à un Congrès (avec Actes)
A. Avila ; F. Roda | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The stormflow solute behaviour of a stream draining an evergreen oak forested watershed was studied. The biogeochemical response depended strongly on the watershed antecedent conditions. Under dry antecedent conditions very few runoff was produc[...]Communication à un Congrès (avec Actes)
J. Bellot ; A. Escarré | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989This study shows the most important chemical characteristics of throughfall and stemflow in three species of Mediterranean holm-oak forest (Quercus ilex, Arbutus unedo y Phillyrea media), as well as their relationship with rainfall water chemist[...]Communication à un Congrès (avec Actes)
J.C. Diez ; B. Alvera | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Concentrations of dissolved (conductivity, Ca, Mg, K, SIO2, P and N-NO3) and suspended solids were studied in the flow of a small basin lying on schist and covered by alpine grassland. Most solutes are diluted during the two-month period of inte[...]Communication à un Congrès (avec Actes)
F.B. Golley ; J. Bellot ; E.P. Odum | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989This study describes the analysis of two ecological systems of different sizes: Georgia State (USA) with 150,500 km2 and La Violada irrigation area (Huesca, Spain) with 0.5 km2. Systems analysis theory was used to interpret energy and matter flo[...]Communication à un Congrès (avec Actes)
L. Ramírez | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Potential evapotranspiration, index of continentality, and frequency of frosts have been studied in relation to the distribution of olive trees in Spain. While index of continentality is not connected with olives groves, evapotranspiration and f[...]Communication à un Congrès (avec Actes)
P. Comin | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Basal area, density and biomass have been studied in 17 pure stands of Juniperus thurifera and 40 mixed stands with several combinations of that species and others of the genura Pinus and Quercus in SW quarter of the province of Teruel (Aragon, [...]Communication à un Congrès (avec Actes)
A. Sala ; R. Picolo ; J. Piñol | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Daily courses of water potential in Quercus ilex shoots are compared during a winter day in two experimental stations located at the bottom (deeper soils) and at the top (shallow soils) of a watershed in the Serra de Prades (Tarragona, Spain). I[...]Communication à un Congrès (avec Actes)
J. Bellot ; A. Escarré | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989This study attempt to simulate the effect of forest structure on the distribution of rainfall water in the soil. Nutrient supplies to the forest soil are estimated in 5 hypothetical stages of development in the Mediterranean forest, based upon t[...]Communication à un Congrès (avec Actes)
J.J. Ibanez ; C.A. Gracia | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989In this paper, a model on intraspecific competition is presented. The model is based on the concepts of areas of influence and interference. The basic hypothesis assumes that the optimisation between space occupation (maximum) and competence (mi[...]Communication à un Congrès (avec Actes)
O. Barrantes ; C.A. Gracia | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989In this paper, one application of the Waring's method to estimate leaf area index, in Pinus sylvestris, is presented. Cross-sectional sapwood area was measured at different heights in four trees and was related to the leaf area sustained over ea[...]Communication à un Congrès (avec Actes)
L. Sierralta ; C.A. Gracia | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The ability of a tree to use the resources of its nearest environment and as consequence of it, its ability to modify the state of those resources, is clearly related to the tree size. Such ability is expressed as the space that surrounds the tr[...]Communication à un Congrès (avec Actes)
R. Picolo | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The height growth and aerial biomass distribution (stems and leaves) of Medicago arborea and two varieties of Atriplex nummularia (one from Tunis and the other from South Africa) are shown below. Two irrigation treatments are compared with a con[...]Communication à un Congrès (avec Actes)
A. Caritat | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989It has been described the structure of 35 plots of different woods (beeches, oak grove, mixed woods and evergreen-oak forest) located in the Natural Park of La Garrotxa (Girona). The distribution of trees in diameter classes allow us to apprecia[...]Communication à un Congrès (avec Actes)
F. Carceller ; M.A. Santacecilia ; V.R. Vallejo | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Three plots have been selected in different forest ecosystems in the Moncayo Natural Park (Zaragoza): two deciduous oak forests (Quercus petraea and Quercus pyrenaica) located at an altitude of 1050 m, and a beech forest at 1300 m. Litter produc[...]Communication à un Congrès (avec Actes)
M. Lavado ; E. Nuñez ; J.C. Escudero | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The annual production of dead leaves along with the monthly and seasonal fluctuations in the contribution of biomass to the ground have been quantitatively determined in two species of Mediterranean maquis: Myrtus communis L. and Pistacia lentis[...]Communication à un Congrès (avec Actes)
R. Fernández Alés ; F. Ortega ; J. Laffarga | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989In order to analyse adaptive strategies in plants of Mediterranean annual grasslands in Sierra Morena (Spain) a group of morphological and functional characters have been measured in 43 common annual species of these grasslands. The principal co[...]Communication à un Congrès (avec Actes)
M.C. Péres Hernández ; F.J. Gutiérrez Mañero ; J.M. Pozuelo González ; F. Bermúdez de Castro | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989An annual acetylene-reducing activity (ARA) pattern in a riparian forest is determined. Free microorganisms, legumes and Alnus glutinosa shrubs and trees were measured in spring, summer, autumn and winter. The studied nitrogen-fixing systems pre[...]Communication à un Congrès (avec Actes)
M. Marquez ; E. Nuñez ; J.C. Escudero | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989This study is an analysis of Nitrogen dynamics in populations of Cistus ladanifer L., of different ages, between 4 and over 40 years. For this purposes the Nitrogen contents of different fractions of aerial biomass were studied from each populat[...]Communication à un Congrès (avec Actes)
M.V. Garrido ; J.M. Del Arco ; A. Escudero | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The process of litter decomposition ten shows initial stages with an intense mineralization, because of leaching and decomposition of labile constituents. These dynamics imply strong pulses of nutrient inputs to soil, which can increase leaching[...]Communication à un Congrès (avec Actes)
A. Moyano ; J.F. Gallardo ; A. Prieto | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The carbon and nitrogen contents of the ploughed layers from Salamanca province cultivated soils have been determined. From these data is established that there are no change in organic matter contents throughout thirty years (1954-1983). The ac[...]Communication à un Congrès (avec Actes)
T. Tarazona ; S. Moreiro ; P. Zaldivar ; R. Calvo | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989A phenological study in beech forests was made in the Demanda mountains (Sistema ibérico, Spain). It carries out the knowledge of the relationship between climatic variations in this region with altitude and other ecological factors. These relat[...]Communication à un Congrès (avec Actes)
D. Badia ; J.M. Alcañiz | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Seasonal samples from six experimental plots of saline, gypseous and carbonated soils from arid lands of Ebro Valley, under irrigated and non-irrigated conditions, were incubated 14 days to determinate the potential nitrate production. Analytica[...]Communication à un Congrès (avec Actes)
A. Müller ; M.F. Schmitz ; F. Bermúdez de Castro | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The nitrogen fixation (ARA) of specimens of Lobaria pulmonaria growing on Quercus pyrenaica trunks in a mixed wood of beech and oak trees in Montejo de la Sierra (Madrid) is determined. The ARA was analysed monthly for a whole year and incubatio[...]