Modern Pollen Rain in Western Iran, and Its Relation to Plant Geography and Quaternary Vegetational History

Abstract

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Vegetation dynamics during the early to mid-Holocene transition in NW Malta, human impact versus climatic forcing

“…It is known that Pistacia is under-represented in modern pollen assemblages (e.g. Wright et al 1967;van Zeist and Bottema 1977). In the Zagros Mountains of western Iran, the highest values of Pistacia pollen reach only 4.5 % even where Pistacia trees form a significant tree cover (Wright et al 1967).…”

Strengths and Weaknesses of Quantitative Climate Reconstructions Based on Late-Quaternary Biological Proxies

“…In the 1960s the interpretation of fossil pollen assemblages in terms of past vegetation types was put on a firmer basis through systematically studying modern pollen assemblages from known vegetation types (Wright 1967) and then by comparing modern and fossil pollen assemblages in a qualitative modern-analogue matching procedure (e.g. McAndrews 1966;Wright et al 1967;Birks 1973aBirks , 1973b. More recently, the assemblage approach has developed a more quantitative basis, the so-called modern analogue technique (MAT) and the related responsesurface approach ( Table 1).…”

Modern pollen rain–vegetation relationships along a forest–steppe transect in the Golestan National Park, NE Iran

“…1). selon les méthodes préconisées par Heim (1970), Saadi & Bernard (1991), Davis & Fall (2001), Moore & Stevenson (1982) et Wright et al (1967). Jusqu'à 10 échantillons ont été prélevés au hasard dans chacun des quadrats puis conservés dans des sachets en papier.…”

“…C'est une vallée de ce type, entaillant le massif du Golestan, qui a été sélectionnée pour la présente. La plupart des études de pollen de surface au Proche-Orient ont été menées dans des régions semi-arides, parmi lesquelles les Monts Zagros, l'Iran Central et le Plateau Anatolien (Wright et al, 1967;van Zeist et al, 1970;Bottema & Barkoudah, 1979;Moore & Stevenson, 1982;Woldring & Bottema, 2001 (Yazvenko, 1991;Stuchlik & Kvavadze, 1993;Kvavadze & Stuchlik, 2002;Beer et al, 2007). Dans le présent article les relations pollen-végétation sont analysées dans la partie centrale du Parc national du Golestan, le long d'un court transect forêt-steppe qui recoupe les forêts planitiaires, les fruticées et brousses de transition et la steppe à Artemisia.…”