Showing papers in "Ecosystems of the world in 1990"

Structural and dynamic characteristics of overgrazed lands of Northern Patagonia, Argentina

Abstract: This chapter refers to several types of grazing land of northern Patagonia, within the territory of Chubut Province (42-46˚S). Within this area, different types of grazing land are determined by the combined action of relief and continentality as probable major physiographic ordinators, and parent material combined with past land use defining spatial heterogeneity on a smaller scale. (...)

The systems of grassland management in Spain

Abstract: (...) In this paper we intend to introduce the main grazing systems of Spain now; they are classified and named by Spanish words taken from names of plants (zulla), landscapes (boalar, dehesa, borreguil, majada), types of herds (manchega, segurena) or cultural traditions (minifundus, pasiego, borda, Mesta). Of course, geographic or ecological descriptions are used in each case (...)

Grasslands on drained peats in Poland

Abstract: Mise au point des connaissances traitant les principaux themes suivants: formation des bols de prairie, transformation des groupements vegetaux