AN ANALYSIS ON QUERCUS LIAOTUNGENSIS AND POPULUS DAVIDIANA SECONDARY FOREST COMMUNITY IN LIUPAN MOUNTAIN
Xie Yingzhong Xu wanren
Through analysing the secondary forest community ofQuercus liaotungensis and Populus davidiana in Liupan Mountain of Ningxai, the author inquired into the character and the alternative tendency of the deciduous secondary forest in southern mountainous temparature zone area of Ningxia
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