Notes on the High Altidude Flora at Pratomagno (Eastern Tuscany) and Considerations on the Effects of the Methane Gas Pipeline. - The flora of the high altitude pastures at Pratomagno mountain in Eastern Tuscany (central Italy) has been studied. A comparison has been made between the data findings from the natural pastures with those of areas traversed by the SNAM Trans-Mediterranean gas pipeline, that was built in 1982-83. The study area (see fig. 3) is the ridge strip between Mt. Secchieta (1450 m) and Mt. Lori (1363 m), reaching to the peaks of Poggio Uomo di Sasso (1537 m) and Mt. Pianellaccio (Croce di Pratomagno, 1593 m). The flora in these pastures was never studied to any great extent in the past, and therefore very little bibliographic and herbaria data are available. The flora studied comprises 271 species, 86 of which had not been previously reported at Pratomagno; 15 species reported by other authors were not found in our study and therefore require confirmation. An analysis of the flora in the natural areas compared with that of the areas crossed by the pipeline (see Table 1) showed that there are fewer species (53) in the natural pastures as opposed to the 72 in the pastures that were "reconstituted" in the areas crossed by the pipeline. Furthermore, several species, such as Nardus stricta, Deschampsia flexuosa, Danthonia decumbens, Carex caryophyllea, Aiuga reptans, Potentilla erecta, Antennaria dioica, Viola eugeniae subsp. eugeniae, etc. were found only or primarily in the natural pastures, while others such as Festuca sp. pl., Trifolium sp. pl., Leontodon hispidus, Achillea col/ina, Taraxacum laevigatum, etc. were more abundant in the reconstituted areas. Some others (such as Agrostis stolonifera, Poa trivia/is, Dactylis glomerata, Lotus pedunculatus, etc.) were only found in these latter areas. The presence of Cytisus scoparius (that was previously absent from the pastures), Murbeckiella zanonii (which is endemic in the Northern Apennines and its growth seems to have been stimulated by work on the pipeline), Vaccinium myrtillus (never before reported at Pratomagno) and Calluna vulgaris (which is very rare at these altitudes) can be considered highly significant. The paper ends with lists of the species that were favored (29) or negatively impacted (17) or apparently not affected (16) by the construction of the methane gas pipeline.

Note sulla flora dei pascoli di altitudine del Pratomagno (Toscana orientale) e considerazioni sugli effetti dovuti alla costruzione del metanodotto / D. VICIANI; G. MOGGI. - In: WEBBIA. - ISSN 0083-7792. - STAMPA. - 51 (1):(1996), pp. 59-81. [10.1080/00837792.1996.10670614]

Note sulla flora dei pascoli di altitudine del Pratomagno (Toscana orientale) e considerazioni sugli effetti dovuti alla costruzione del metanodotto.

VICIANI, DANIELE
;
MOGGI, GUIDO
1996

Abstract

Notes on the High Altidude Flora at Pratomagno (Eastern Tuscany) and Considerations on the Effects of the Methane Gas Pipeline. - The flora of the high altitude pastures at Pratomagno mountain in Eastern Tuscany (central Italy) has been studied. A comparison has been made between the data findings from the natural pastures with those of areas traversed by the SNAM Trans-Mediterranean gas pipeline, that was built in 1982-83. The study area (see fig. 3) is the ridge strip between Mt. Secchieta (1450 m) and Mt. Lori (1363 m), reaching to the peaks of Poggio Uomo di Sasso (1537 m) and Mt. Pianellaccio (Croce di Pratomagno, 1593 m). The flora in these pastures was never studied to any great extent in the past, and therefore very little bibliographic and herbaria data are available. The flora studied comprises 271 species, 86 of which had not been previously reported at Pratomagno; 15 species reported by other authors were not found in our study and therefore require confirmation. An analysis of the flora in the natural areas compared with that of the areas crossed by the pipeline (see Table 1) showed that there are fewer species (53) in the natural pastures as opposed to the 72 in the pastures that were "reconstituted" in the areas crossed by the pipeline. Furthermore, several species, such as Nardus stricta, Deschampsia flexuosa, Danthonia decumbens, Carex caryophyllea, Aiuga reptans, Potentilla erecta, Antennaria dioica, Viola eugeniae subsp. eugeniae, etc. were found only or primarily in the natural pastures, while others such as Festuca sp. pl., Trifolium sp. pl., Leontodon hispidus, Achillea col/ina, Taraxacum laevigatum, etc. were more abundant in the reconstituted areas. Some others (such as Agrostis stolonifera, Poa trivia/is, Dactylis glomerata, Lotus pedunculatus, etc.) were only found in these latter areas. The presence of Cytisus scoparius (that was previously absent from the pastures), Murbeckiella zanonii (which is endemic in the Northern Apennines and its growth seems to have been stimulated by work on the pipeline), Vaccinium myrtillus (never before reported at Pratomagno) and Calluna vulgaris (which is very rare at these altitudes) can be considered highly significant. The paper ends with lists of the species that were favored (29) or negatively impacted (17) or apparently not affected (16) by the construction of the methane gas pipeline.
1996
51 (1)
59
81
D. VICIANI; G. MOGGI
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