The LGM Distribution of Dominant Tree Genera in Northern China's Forest-steppe Ecotone and Their Postglacial Migration

This book systematically discusses the vegetation dynamics in northern China since the LGM, with a focus on three dominant tree species (Pinus, Quercus and Betula). By integrating methods of palaeoecology, phylogeography and species distribution model, it reconstructs the glacial refugia in northern China, demonstrating that the species were located further north than previously assumed during the LGM. The postglacial dynamics of forest distribution included not only long-distance north-south migration but also local spread from LGM micro-refugia in northern China. On the regional scale, the book shows the altitudinal migration pattern of the three dominant tree genera and the role of topographical factors in the migration of the forest-steppe border. On the catchment scale, it analyzes Huangqihai Lake, located in the forest-steppe ecotone in northern China, to indentify the local forest dynamics response to the Holocene climatic change. It showsthat local forests have various modes of response to the climate drying, including shrubland expansion, savannification and replacement of steppe. In brief, these studies at different space-time scales illustrate the effects of climate, topography and other factors on forest migration.

Auteur

Dr. Qian Hao 2014.01~2015.01, Plant Biology, University of Illinois at Urbana-Champaign, Visiting Ph.D. (Funded by CSC)

2011.01~2016.01, Department of Ecology, College of Urban and Environment Sciences, Peking University, PhD. in Physical Geography.

2007.01~2011.01, Department of Forestry, Beijing Forestry University, B.S. in Forestry.

Beijing Excellent graduate

Peking University Excellent graduate, Excellent doctoral dissertation Beijing Forestry University "Merit Student", "The First Prize of Liang Xi"

Hao, Q., de Lafontaine, G., Guo, D., Gu, H., Hu, F.S., Han, Y., Song, Z. and Liu, H. (2017) The critical role of local refugia in postglacial colonization of Chinese pine: joint inferences from DNA analyses, pollen records, and species distribution modeling. Ecography, Online.

Hao, Q., Liu, H. and Liu, X. (2016) Pollen-detected altitudinal migration of forests during the Holocene in the mount ainous forest-steppe ecotone in northern China. Palaeogeography, Palaeoclimatology, Palaeoecology, 446: 70-77.

Hao, Q., Liu, H., Yin, Y., Wang, H. and Feng, M. (2014) Varied responses of forest at its distribution margin to Holocene monsoon development in northern China. Palaeogeography, Palaeoclimatology, Palaeoecology, 409: 239-248.

Contenu
Introduction Chapter.- Research Area and Research Methods Chapter.- Glacial refugia and the postglacial migration of dominant tree species in northern China.- Effects of Vertical Migration on Local Vegetation Chapter.- Local Vegetation Dynamics and Forest Advance Retreat.- Forest migration model and uncertainties Chapter.- Main Conclusions.