84 - Tree lines, hedges, rural mosaics

Classification des habitats du Paléarctique (2001)

Description

Ligneous formations of small size, arranged in a linear, reticulated or insular manner, closely interwoven with grassy or cultivated habitats. Also, combinations of such elements and mixed agricultural formations, containing both ligneous and herbaceous layers. Very artificial, disturbed or heterogeneous systems, containing many planted or exogenous elements can be listed here while more natural ensembles utilising many natural elements and covering substantial surfaces are better classified under section 9 (units 91 and 92). Landscapes in which pastures, crops and plantation elements are intimately mixed (equivalent to unit 92) can be described by use of the first three codes below (if useful, specified by codes from units 31.8, 41, 42 and 83) in conjunction with other codes from section 8 and other open habitat sections. Surfaces characterized by mixed agricultural formations, and in particular, those that combine ligneous and herbaceous elements on the same surfaces (equivalent to unit 91) can be designated by one of the codes 84.4 or 84.5 and their elements specified by use of other codes from section 8 or any other.

Bibliographie

Devillers P., Devillers-Terschuren J. & Vander Linden C., 2001. PHYSIS Palaearctic Habitat Classification Database. Updated to 10 December 2001. Institut Royal des Sciences Naturelles, Bruxelles. (Source)

Ellenberg, 1963, 1988; Knapp, 1973; Zohary, 1973; de Planhol, 1976; Way and Greig-Smith, 1987; Noirfalise, 1988; Morrison, 1989; Pott, 1996.