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Status and classification of vegetation in Labagoumen forest region in Beijing.

Cui Guofa; Cheng Kewu; Shen Guozhen; Lu Duanzheng;Li Junqing; Yu Shiwen; Zhao Shutian. Journal of Beijing Forestry University (2000)22(4)46~51[Ch,14 ref.]Research Center of Nature Reserve, Beijing For. Univ., 100083, P. R. China.  
In Labagoumen forest region, the virgin forest has disappeared, but the forests of \%Quercus mongolica\% and \%Juglans mandshurica\% in parts of the region have been well preserved which have the characteristics of primary forest. The vegetation is divided into 22 forms which belong to 4 groups of vegetational type and 8 vegetational types. The coniferous forests include form. Pinus tabulaeformis, form. Platycladus orientalis and form. \%Larix principis rupprechtii\% mainly. The broad leaved forests include form. \%Quercus mongolica,\% form. \%Populus davidiana,\% form. \%Betula platyphylla,\% form. \%Betula dahurica,\% form. \%Juglans mandshurica.\% The coppice forests include form.\% Vitex negundo\% var. \%heterophylla, \%form. \%Spiraea trilobata,\% form.\% Rhododendron micranthum,\% form.\% Corylus heterophylla,\% form. \%Corylus manshurica,\% form. \%Abelia biflora,\% form.\% Lespedeza bicolor.\% The shrub\|grass associations includes form. \%Vitex negundo\% var. \%heterophylla\|Arundnella hirta\|Cleistogenes\% spp., form. \%Spiraea trilobata\|Clamagrostis arundinacea\|Carex lanceolata\% mainly. The meadows include form. \%Clamagrostis arundianacea,\% form. \%Ostericum grosseserratum\|Parnassia palustris\|Muhcenbergia japonica,\% form. \%Achnatherum extermiorienale\|Bupleurum scorzonerifolium\|Polygonum bistorta \%mainly.
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