[关键词]
[摘要]
目的:借助GMPGIS系统平台对杜仲的全球生态适宜性进行分析,以期对杜仲的全球引种提供科学的数据支持。方法:借助公开发表的文献、数据库网站等资源,选取杜仲道地产区、野生分布区和主产区等一共337个样点,确定经纬度信息。以最冷季均温、最热季均温、年均温、年均相对湿度、年均降水量、年均日照和土壤,共7个生态因子类型作为生态指标,运用药用植物全球产地生态适宜性区划信息系统(GMPGIS)系统进行分析。结果:从全球范围来看,杜仲生态相似度区域广泛分布全球主要大洲。其中,东亚、欧洲大部、北美洲拥有的杜仲生态相似度区域的面积最大。以国家面积来看,亚洲的中国和北美洲的美国所拥有的面积最大。从中国国内来看,华东、东南沿海、华中、华南、西南地区及西藏藏南地区和台湾极少数地区都具有杜仲生态相似度区域。面积前三位的省份是云南省、四川省、湖南省。结论:最适合杜仲栽培的区域应符合以下条件:年均温度12 ℃-18 ℃,年均相对湿度60%-80%,年均降水量1000-1500 mm,年均日照强度130-160 W·m-2,最适土壤为淋溶性土壤。拥有杜仲生态相似度区域面积前三的国家分别是中国、美国以及阿根廷。运用GMPGIS系统能够获取杜仲最大生态相似度区域信息,并为今后杜仲合理引种提供可靠的数据支撑。
[Key word]
[Abstract]
Objective: To analyze the ecological adaptability areas for Eucommia ulmoides around the world by resorting to Global Geographic Information System for Medicinal Plant (GMPGIS), which is respected for providing scientific data forintroduction. Methods: A total of 337 sites, where Eucommia ulmoides was cultivated and has been growing stably foryears, are selected according to references and different databases. On the basis of 7 ecological factors (6 climate factorsand 1 soil type), GMPGIS found out that ecological adaptability areas of Eucommia ulmoides distribute widely across theglobe. Results: Globally, ecological adaptability areas of Eucommia ulmoides distribute in major continents. In particular,eastern Asia, most areas of Europe and Northern America possess a maximum proportion of it. In respect of national area,China and the US own the maximum areas. For China, the area of places where own a large scale of ecological adaptability are eastern China, southeast coast in China, central China, southern China, southwest China, southern Tibetand Taiwan, among these districts, Yunnan Province, Sichuan Province and Hunan Province have the top three ares.Conclusion: Places where suitable for cultivating Eucommia ulmoides need to have the following features: The annualaverage temperature is 12℃- 18℃ , the annual average humidity is 60%- 80% , the annual average precipitation is1000 mm-1500 mm and the annual average sunlight intensity is 130 W·m-2-160 W·m-2 and optimum soil is eluvial soil.China, America and Argentina are coutries which have the biggest ecological adaptability areas and rank from the first tothe third orderly. It is able to obtain the information about the biggest ecological adaptability areas of Eucommia ulmoidesby using GMPGIS, which can provide reliable database for reasonable introduction of Eucommia ulmoides in the future.
[中图分类号]
[基金项目]
国家科技部港澳台科技合作专项(2015DFM30030):中药国际贸易中安全性关键环节研究,负责人:陈士林。