Sandy Lands During the Medieval Warm Period in Eastern China
WU Jian-Wei-；Lu-Rui-Ji-；Diao-Ting-Ning
1.Academy of Foresryt Inventory and Planning,Administration State of Forestry, 100714; 2.China Center of Desert Research at Beijing Normal University, 100875; 3.College of Soil and Water Conservation, Beijing Forestry University, 100083: Beijing, China
Abstract：The Medieval Warm Period(MWP)is another warm period after postglacial epoch.A large quantity of research results have manifested that the temperature increased unevenly during the middle ages in many areas in the world then. This phenomenon is similar to the global warming at the beginning of the 20th century. It is very singificant for global warming research at the 20th century to study on climatic and environmental change during the Medieval Warm Period. In this article, some typical Holocene sections, found in sandy lands in eastern China, were collected and indicated that paleosol and lacustrine sediment developed, drifting sands were fixed during the Medieval Warm Period. Paleosol and pollen were analyzed to certify that the fluctuation of temperature was weak and the precipitation was relative abundant, the landscape of sandy land is steppe or forest steppe.
2004, Vol. 2 
