MODERN POLLEN DISPERSAL IN ARGENTINA

摘要: Abstract Extensive analyses were made of surface soil samples and extant vegetation from Argentina, where palynological reconstructions paleoenvironments over the last 15,000 years is underway. The major zones in desert northwest sub‐antarctic southwest south Argentina are discernible relative frequency their respective pollen assemblages. Where quantitative comparisons plant data possible, representation factors for taxa calculated. In addition to conventional approach using percentage values, principal component cluster analysis prove be excellent complementary techniques that they reduce set into definite groups representative taxa, both plants pollen. comparison these dominance along transects indicate that, example, treeless transition zone between grassland scrub (Punen...