Approach to forestry inventory and mapping by means of multi-spectral airborne data.

Baulies X, Pons X (1995) Approach to forestry inventory and mapping by means of multi-spectral airborne data. International Journal of Remote Sensing 16:61-80.

Physical factors that influence fecal analysis estimates of herbivore diets.

Bartolomé J, Franch J, Gutman M, Seligman N (1995) Physical factors that influence fecal analysis estimates of herbivore diets. Journal of Range Management 48:267-270.

Approach to forestry inventory and mapping by means of multi-spectral Airborne data

Baulies X., Pons X. (1995) Approach to forestry inventory and mapping by means of multi-spectral Airborne data. International Journal of Remote Sensing. 16: 61-80.
Enllaç
Doi: 10.1080/01431169508954372

Resum:

In this study we evaluate the possibilities of the airborne sensor CASI (Compact Airborne Spectrographic Imager) when applied to mapping of variables characteristic of an ecologic and forestry inventory, i.e., wood biomass, leaf biomass, leaf area index (LAI), canopy cover, etc. The use of multiple regression techniques has made possible to obtain correlation values between 0.76 and 0.94 (p

Llegeix més

Patterns of seedling recruitment in West‐Mediterranean Quercus ilex forest influenced by canopy development

Espelta, J.M., Riba, M., Javier, R. (1995) Patterns of seedling recruitment in West‐Mediterranean Quercus ilex forest influenced by canopy development. Journal of Vegetation Science. 6: 465-472.
Enllaç
Doi: 10.2307/3236344

Resum:

Modelling the long-term impacts of atmospheric pollution deposition and repeated forestry cycles on stream water chemistry for a holm oak forest in northeastern Spain.

Neal C, Avila A, Rodà F (1995) Modelling the long-term impacts of atmospheric pollution deposition and repeated forestry cycles on stream water chemistry for a holm oak forest in northeastern Spain. Journal of Hydrology 168:51-71.

Soil water chemistry in a holm oak (Quercus ilex L.) forest: inferences on biogeochemical processes for a montane Mediterranean area.

Avila A, Bonilla D, Rodà F, Piñol J, Neal C (1995) Soil water chemistry in a holm oak (Quercus ilex L.) forest: inferences on biogeochemical processes for a montane Mediterranean area. Journal of Hydrology 166:15-35.

Biomonitoring ozone phytotoxicity in eastern Spain

Gimeno B.S., Peñuelas J., Porcuna J.L., Reinert R.A. (1995) Biomonitoring ozone phytotoxicity in eastern Spain. Water, Air, & Soil Pollution. 85: 1521-1526.
Enllaç
Doi: 10.1007/BF00477197

Resum:

High ozone (O3) levels have been recorded in eastern Spain. A project was developed to identify the areas of elevated O3 and determine if these levels were above critical concentrations for plant damage. Thus, a network of bioindicators was established in two Autonomous Communities of Spain: Catalunya (31.930 km2) and Valencia (23.305 km2) to assess O3 phytotoxicity. Three tobacco cultivars, (Bel-W3, Bel-C and Bel-B) were used during the 1994 growing season in both Regions. In Catalunya the highest O3 phytotoxicity was recorded in coastal areas, while the phytotoxicity decreased as plants were grown further in-land. A lower O3 phytotoxicity was observed in coastal sites of the Valencia Autonomous Community, compared to Catalunya, although the O3 injury was observed downwind from Valencia city in the most resistant cultivar Bel-B. The results in the Valencian Community were difficult to interpret, since plant viruses were widely distributed, not only in indicator plants, but also in commercial crops grown in the area. The analysis of O3 concentrations, meteorological parameters and visible injury at the Catalan sites showed that high relative humidity levels could favour O3 phytotoxicity. Therefore, the interactions between O3 exposure and environmental conditions on plant response should be further studied for the establishment of sound critical levels. © 1995 Kluwer Academic Publishers.

Llegeix més

Evaluating wheat nitrogen status with canopy reflectance indices and discriminant analysis.

Filella I, Serrano L, Serra J, Peñuelas J (1995) Evaluating wheat nitrogen status with canopy reflectance indices and discriminant analysis. Crop Science 35:1400-1405.

Sprout recruitment and self-thinning of Erica multiflora after clipping.

Vilà M, Terradas J (1995) Sprout recruitment and self-thinning of Erica multiflora after clipping. Oecologia 102:64-69.

Effects of competition and disturbance on the resprouting performance of the Mediterranean shrub Erica multiflora L. (Ericaceae).

Vilà M, Terradas J (1995) Effects of competition and disturbance on the resprouting performance of the Mediterranean shrub Erica multiflora L. (Ericaceae). American Journal of Botany 82:1241-1248.

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