川南六县区构树野外调查研究

Field investigation of Broussonetia papyrifera(L.)Vent.in 6 counties of southern Sichuan

目的摸清川南六县区(珙县、江安县、宜宾县、翠屏区、合江县、叙永县)的构树资源现状,调查构树在上述地区的野外生境及伴生植物情况。方法依托第四次全国中药资源普查,收集和分析构树在川南六县区的资源数据,计算出构树资源的蕴藏量。结果构树资源在川南六县区均有分布,常见于海拔200~400米的自然阔叶林林缘处,在植物群落内部适应性广泛,可与其他物种构成良好的种间结合,但上述六个县区的构树蕴藏量存在明显差异,蕴藏量:叙永县>宜宾县>江安县>合江县>珙县>翠屏区。结论构树不仅在当地野生资源丰富,而且适应性良好,可以作为当地增收项目,进一步开发利用。

Objective To investigate the resource of Broussonetia papyrifera(L.)Vent.in six counties in southern Sichuan of China(Gong,Jiang’an,Yibin,Cuiping,Hejiang,and Xuyong)as well as its wild habitats and associated plants.Methods Based on the fourth national census of Chinese medicine resources,the data of Broussonetia papyrifera in the six counties were collected and analyzed to calculate the availability of resources.Results Broussonetia papyrifera was present in the six counties of southern Sichuan,commonly found at the edges of natural broad-leaved forests at 200~400 meters above sea level.Broussonetia papyrifera had wide adaptability within plant communities and co-existed with other species.There were significant differences in the availability of Broussonetia papyrifera in the six counties,following the order of Xuyong>Yibin>Jiang’an>Hejiang>Gong>Cuiping.Conclusion Broussonetia papyrifera has high availability and good adaptation in the six counties and can be further developed into increase local income.