Xie Zhong-de, Jia Han, Fu Shao-Zhi, Gao Wen-Yuan, Zhang Zhi-Wei, Sun Wei
Chongqing Three Gorges Medical College, Chongqing 404120, China.
Engineering Technology Research Center of Anti-cancer Natural Medicine in Chongqing City, Chongqing 404120, China.
Zhongguo Zhong Yao Za Zhi. 2017 Nov;42(22):4426-4430. doi: 10.19540/j.cnki.cjcmm.2017.0195.
The study aims at investigating the ecological environment Adiantum reniforme var. sinense of in Three Gorges Reservoir region, and providing a reference basis for the protection of resources and artificial cultivation of A. reniforme var. sinense. By using the method of investigation, field survey and experimental analysis, the vegetation, natural geographical environment, climate, soil nutrients of A. reniforme var. sinense were studied and analyzed. The survey found that A. reniforme var. sinense distribution area reduced fast in Three Gorges region, a lot of distribution has diminished and vanished due to excessive digging, currently only in 3 towns of Wanzhou there exist 4 wild distribution areas. The growth of A. reniforme var. sinense needs an environment with low altitude, steep slope and thin soil, northeast slope, canopy height and warm and humid climate characteristics, and the soil in distribution has the characteristics of high organic matter, available nitrogen, available potassium, and low available phosphorus content.
本研究旨在调查三峡库区荷叶铁线蕨的生态环境，为荷叶铁线蕨资源保护及人工栽培提供参考依据。采用调查、实地勘查及实验分析方法，对荷叶铁线蕨的植被、自然地理环境、气候、土壤养分等进行了研究分析。调查发现，三峡地区荷叶铁线蕨分布面积锐减，许多分布点因过度采挖而减少或消失，目前仅在万州3个镇存在4个野生分布区。荷叶铁线蕨生长需要低海拔、陡坡、薄土、东北坡向、郁闭度及温暖湿润气候特征的环境，其分布区土壤具有有机质、碱解氮、速效钾含量高，有效磷含量低的特点。
