Research paperDistinguishing the pollen of deciduous oaks, evergreen oaks, and certain rosaceous species of southwestern Sichuan Province, China
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Holocene environmental change at Inle Lake, Shan State, Myanmar, and its implications for the regional development of agriculture
2019, Palaeogeography, Palaeoclimatology, PalaeoecologyCitation Excerpt :Other authors (e.g. Sun et al., 1986; Dai et al., 2018) have distinguished Cyclobalanops from other oaks (Quercus) but we included it with the non-deciduous (evergreen) oak group (Liu et al., 2007). The evergreen oaks have a distinct poroidal thinning along the colpus that is frequently torn, often have an equatorial bulge and their tectum sculpture is fine and angular (Jarvis et al., 1992). Pollen, spore and algal types and their environmental groupings are listed in the supplementary data.
Pollen and non-pollen palynomorph analyses of Upper Holocene sediments from Dianshan, Yangtze coastal lowlands, China: Hydrology, vegetation history and human activity
2019, Palaeogeography, Palaeoclimatology, PalaeoecologyCitation Excerpt :Liu et al. (2016), following modern pollen studies of ‘paddy’ field Poaceae pollen (Yang et al., 2012), suggest that grass grains above 40 μm may indicate well-managed rice cultivation. Quercus pollen grains have been separated into those of evergreen oaks (Cyclobalanopsis) and of deciduous oaks, (including genera with very similar pollen grains and so combined into a composite curve Quercus/Lepidobalanus), using published keys and photographs (Chang and Wang, 1986; Jarvis et al., 1992). Composite curves are also employed for other genera with pollen that is very difficult to separate with certainty: Ulmus/Zelkova, Corylus/Ostrya, Castanopsis/Lithocarpus and Typha/Sparganium, where Typha is T. angustifolia.
Vegetation responses to late Quaternary climate change in a biodiversity hotspot, the Three Parallel Rivers region in southwestern China
2018, Palaeogeography, Palaeoclimatology, PalaeoecologyCitation Excerpt :In the TPRR, Quercus franchetii from the savanna adapts to the dry-hot climate at low elevations, Q. aquifolioides preferring the alpine environment is common in the Abies forests and Q. pannosa, Q. senescens are distributed in the coniferous and broadleaved mixed forest. However, their pollen is not possible to differentiate (Jarvis et al., 1992). By comparison, Quercus pollen is quite characteristic for the mixed forests on the Yulong Mountain (Xiao et al., 2009) where the savanna and alpine Quercus forests are rarely developed.
Postglacial vegetation and fire history of the southern Cascade Range, Oregon
2015, Quaternary Research (United States)Holocene vegetation history and fire regimes of Pseudotsuga menziesii forests in the Gulf Islands National Park Reserve, southwestern British Columbia, Canada
2013, Quaternary Research (United States)Citation Excerpt :Alnus rubra and Alnus viridis type pollen were differentiated following May and Lacourse (2012). Quercus garryana pollen was identified with the aid of Jarvis et al. (1992) and Acer macrophyllum was identified according to Helmich (1962). Arbutus menziesii type pollen were identified based on criteria from Sarwar et al. (2008) and Lu et al. (2009).
New insights on Late Quaternary Asian palaeomonsoon variability and the timing of the Last Glacial Maximum in southwestern China
2011, Quaternary Science ReviewsCitation Excerpt :Pollen was initially extracted from sediment samples spaced at 8 cm intervals, following standard techniques described in Faegri and Iversen (1981) and Moore et al. (1991). Pollen identification was undertaken with reference to Chinese and southeast Asian pollen guides (e.g. Institute of Botany and South China Institute of Botany, 1982; Jarvis et al., 1992; Wang et al., 1995; Qiao, 2004; Wang and Pu, 2004; Fujiki et al., 2005; Menitsky, 2005; E-Floras, 2006) and with assistance from Professor Tong, Department of Hydrology and Environmental Geology, Chinese Academy of Geological Science (CAS), Shijiazhuang. The pollen sum (including trees, shrubs, herbs, grasses and sedge) was comprised of a count of 300 pollen grains per sample.