秦岭西段小陇山林区珍稀濒危树种资源及保护.doc

秦岭西段小陇山林区珍稀濒危树种资源及保护*张建华摘要: 位于秦岭西段的小陇山林区有丰富的植物资源, 有国家保护植物数十种, 经过调查, 基本摸清了珍稀濒危树种在本林区的分布情况, 并对一些濒危树种进行繁育, 扩大分布范围, 同时提出了保护繁育对策。关键词: 小陇山林区; 珍稀濒危树种; 分布; 繁育中图分类号: S 文献标识码: A Resources and protection of rare and endangered tree species in Xiaolongshan forest area in west section of Qinlin district ZHANG Jian-hua ( Xiaolongshan Forestry Science and Technology Research Institute , Tianshui 741022, Gansu) Abstract: There are rich plant resources in Xiaolongshan forest area in west section of Qinling district and 10 national protection plant species are there. Through investigation, the distribution condition of rare and endangered tree species in the forest area was found out basically. In the meanwhile, the propagation of some endangered tree species was made and the protection propagation countermeasures were put forward. Key words: Xiaolongshan forest area; rare and endangered tree species; distribution; propagation 小陇山林区地处秦岭山脉西段, 是典型的天然次生林区, 树种以落叶阔叶树为主, 混生较耐寒的常绿阔叶树,树木种类繁多、组成复杂,是国家重点天然林资源保护工程建设区。区内自然分布有国家Ⅰ级保护树种红豆杉( Taxus chinensis ( Pilg. ) Reld. )、南方红豆杉( Taxus mairei ex Liu. ) 、银杏( Ginkgo biloba L.), 国家Ⅱ级保护树种秦岭冷杉( Abies chensiensis Van Tiegh. ) 、大果青杄( Picea neoveitchii Most. ) 、巴山榧树( Torreya fargesii franch. ) 、连香树( Cercidiphyllum japonicum . ) 、水青树( Tetracentron sinensis Oliv. ) 、厚朴( Magnolia officinalis Rehd. et Wils. ) 、水楸( Fraxinus mandschurica Rupr. ) ;国家重点