Evolution of vegetation under intensive grazing: Two examples in North-western Italian mountains

1989 ◽  
Vol 27 (1-4) ◽  
pp. 347-359
Author(s):  
M. Acutis ◽  
G. Pascal ◽  
A. Reyneri ◽  
C. Siniscalco
Keyword(s):  
North Western ◽  
Evolution Of Vegetation

scholarly journals Bibliographical note on the syntaxonomy of the vegetation of Tlemcen, Hafir, Moutas and its reserve (North-western Algeria)

2020 ◽  
Vol 27 (2) ◽  
pp. 345-358
Author(s):  
Naima Bouazza ◽  
Kaouider Cherifi ◽  
Brahim Babali ◽  
Mohammed Bouazza
Keyword(s):  
Plant Cover ◽  
Illegal Logging ◽  
Negative Consequences ◽  
Bibliographical Note ◽  
Tree Structures ◽  
Degradation Factor ◽  
Plant Taxon ◽  
Western Algeria ◽  
North Western ◽  
Evolution Of Vegetation

This study provides bibliographical note on the syntaxonomy of the vegetation of Tlemcen, Hafir, Moutas of North-western Algeria, including the associations and alliances of the different higher units found in the Hafir forest and the Moutas Reserve. In this work, we observed modifications of forest and pre-forest structures according to bioclimatic variations. However, in this region, the xericity of the climate is not the only factor destroying the plant cover, anthropization is also a degradation factor. While being aware of the negative consequences, man, through their abusive cultivation, illegal logging, overgrazing, urbanization, the depletion of natural resources;, inhibits the evolution of vegetation, participates in the replacement of a rich plant cover by another and more xerophytic plant cover with thorny and/or toxic feature. The landscape is dominated, for the most part, by open and degraded formations based on therophytes and chamaephytes, linked to Rosmarinetea and Cisto-Lavanduletea. The tree structures in Hafir and the Moutas reserve, still occupy only minimal areas subject to the destructive actions of man and his flock. These formations are still linked to the Quercetea ilicis. These ecosystems are marked by a regressive evolution (forest, pre-forest, scrub, scrubland and therophytization). Bangladesh J. Plant Taxon. 27(2): 345-358, 2020 (December)

Abstract #605: Anthropometric Indices Among Hiv Infected Patients in Kano, North Western Nigeria

2015 ◽  
Vol 21 ◽  
pp. 115-116
Author(s):  
Fakhraddeen Muhammad ◽  
Andrew Uloko ◽  
Ibrahim Gezawa ◽  
Mansur Ramalan ◽  
abdulrazaq habib
Keyword(s):  
Anthropometric Indices ◽  
North Western

Prince Henri d'Orleans (1867–1901): geographical and botanical exploration between inner Asia and southwest China

1978 ◽  
Vol 8 (4) ◽  
pp. 399-399
Author(s):  
WILLIAM GARDENER
Keyword(s):  
Southwest China ◽  
Western China ◽  
Left Bank ◽  
Inner Asia ◽  
Botanical Exploration ◽  
Western Yunnan ◽  
Westerly Direction ◽  
Chinese Province ◽  
The Right ◽  
North Western

Prince Henri d'Orleans, precluded by French law from serving his country in the profession of arms, had his attention turned early towards exploration. In 1889, accompanied by the experienced traveller Gabriel Bonvalet, he set out from Paris to reach Indo-China overland by way of Central Asia, Tibet and western and south western China. The journey made contributions in the problems of the whereabouts of Lap Nor and the configuration of the then unexplored northern plateau of Tibet; and in botany it produced some species new to science. The party reached Indo-China in 1890. In 1895, having organised an expedition better equipped for topographical survey and for investigations in the fields of natural history and ethnography, Prince Henri set out from Hanoi with the intention of exploring the Mekong through the Chinese province of Yunnan. After proceeding up the left bank of the Salween for a brief part of its course and then alternating between the right and left banks of the Mekong as far up as Tzeku, the party found it advisable to enter Tibet in a north westerly direction through the province of Chamdo and instead crossed the south eastern extremity of the country, the Zayul, by a difficult track which led them to the country of the Hkamti Shans in present day Upper Burma, and thence to India completing a journey of 2000 miles, "1500 of which had been previously untrodden" (Prince Henri). West of the Mekong, the journey established that the Salween, which some geographers had claimed took its rise in or near north western Yunnan, in fact rose well north in Tibet, and that, contrary to previous opinions, the principal headwater of the Irrawaddy rose no further north than latitude 28°30'. Botanical collections were confined to Yunnan, where the tracks permitted mule transport, and they produced a number of species new to science and extended the range of distribution of species already known.

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