栾川具有园林观赏价值金丝楸资源调查分析

Investigation and Analysis of Resources of Catalpa bungei C.A.Mey. with Ornamental Value of Garden in Luanchuan

栾川县金丝楸呈零星和小群落分布,主要位于秋扒乡、潭头镇、重渡沟管委会、石庙镇等,栾川是金丝楸分布的中心地带,周边洛宁、卢氏、西峡、嵩县等均有野生分布。因栾川地处北温带与亚热带过度地带,金丝楸的种群有较大的变异空间,本文通过对金丝楸的树形、冠型和花冠形态进行观察,筛选出3个具有较好观赏价值的金丝楸优良单株,对今后优良乡土树种金丝楸在园林绿化中的应用及产品开发具有积极的意义。

Catalpa bungei C.A.Mey.in Luanchuan distributes sporadic and small communities.It mostly lies in Qiupa town,Tantou town,Shimiao town and Chongdugou.Luanchuan is the central zone of Catalpa bungei C.A.Mey,what’s more,Luoning county,Lushi county,Xixia county and Songxian county also have wild distribution of this kind of wild Catalpa bungei C.A.Mey..Luanchuan lies in the transition zone of north temperate zone and subtropical zone,so the types of Catalpa bungei C.A.Mey has great variations.In this paper,we researched and watched the tree shapes,the crown types and the corolla shapes of Catalpa bungei C.A.Mey,then selected three individual plants which had better ornamental value,we thought it will have positive significances on the future uses and developments of Catalpa bungei C.A.Mey.