13 Court-Picon M,Alexandre B,Beaulieu J-L.Modern pollen-vegetation relationships in the Champsaur valley(French Alps)and their po-tential in the interpretation of fossil pollen records of past cultural landscapes.Rev Palaeobot Palynology,2005,135:13-39？？
[3]
14 Court-Picon M,Alexandre B,Beaulieu J-L.Modern pollen/vegetation/land-use relationships in mountain environments:an example from the Champsaur valley(French Alps).Veg Hist Archaeobot,2005,15:151-168
[4]
15 Buttler A,Mazier F,Galop D.Modern pollen assemblages from grazed vegetation in the western Pyrenees,France:a numerical tool for more precise reconstruction of past cultural landscapes.The Holocene,2006,16:91-103？？
36 Poska A,Saarse L,Veski S.Reflections of pre-and early-agrarian human impact in the pollen diagrams of Estonia.Palaeogeography, Palaeoclimatology,Palaeoecology.2004,209:37-50
12 Hjelle L K.Relationships between pollen and plants in human-influenced vegetation types using presence-absence data in western Norway.Rev Palaeobot Palynology,1997,99:1-16？？
[29]
16 Liu H Y,Wang Y,Tian Y H,et al.Climatic and anthropogenic control of surface pollen assemblages in East Asian steppes.Rev of Pal-aeobot Palynology,2006,138:281-289
22 Wang X L,Li Y C,Xu Q H,et al.Pollen assemblages from different agricultural units and their spatial distribution in Anyang area.Ch i-nese Science Bulletin,2010,55:544-554
[33]
23 焦北辰.中国自然地理图集.北京:地图出版社,1984.59-60
[34]
24 张新时.中国植被图及其地理格局.北京:地质出版社,2007.538-608
[35]
25 Faegri K,Iversen J.Textbook of pollen analysis(3rd.).Oxford:Blackwell,1989.295
[36]
26 Grimm E C.Tilia and Tilia graph PC spreadsheet and graphics software for pollen data.INQUA,Working Group on Data-Handling Methods.Newsletter,1990,4:5-7
