| 金荞麦的潜在分布区及生态特征 |
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| 引用本文： | 郭杰,张琴,张东方,文检,孙成忠,谢彩香.金荞麦的潜在分布区及生态特征[J].植物保护学报,2018,45(3):489-495. |
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| 作者姓名： | 郭杰 张琴 张东方 文检 孙成忠 谢彩香 |
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| 作者单位： | 中国医学科学院北京协和医学院药用植物研究所;武汉理工大学;江苏师范大学;成都中医药大学;中国测绘科学研究院 |
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| 基金项目： | 国家自然科学基金（81473304），国家科技支撑计划（2015BAI05B01） |
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| 摘 要： | 为了解我国金荞麦Fagopyrum dibtrys(D.Don)Hara的潜在分布区及生态特征,基于38个环境因子以及金荞麦在我国的153个地理分布记录,应用最大熵模型(MaxEnt)与地理信息系统(GIS)对金荞麦进行生态适宜性区划,并采用自然间断法对金荞麦的潜在区域进行划分。结果显示,金荞麦的潜在分布区主要位于我国西南地区东部、华中地区、华东地区和华南地区(22 N°~35N°),总面积约为250.99×10~4km~2;将金荞麦的潜在分布区划分为适生区、低适生区与边缘适生区,其中适生区主要集中在长江流域,总面积为88.00×10~4km~2。影响金荞麦地理分布的主要生态因子有最冷月最低温、最暖季降水量、高程、最干季降水量等9个因子,其中气候因子对金荞麦的地理分布影响最大。表明金荞麦应在云南、贵州、四川等省扩大种植面积,陕西、山西等省可考虑引种。
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| 关 键 词： | 金荞麦 最大熵模型 生态适宜区 生态特征 |
| 收稿时间： | 2016/9/26 0:00:00 |
Potential distribution area and ecological characteristics of common buckwheat Fagopyrum dibtrys (D. Don) Hara |
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| Guo Jie,Zhang Qin,Zhang Dongfang,Wen Jian,Sun Chengzhong and Xie Caixiang.Potential distribution area and ecological characteristics of common buckwheat Fagopyrum dibtrys (D. Don) Hara[J].Acta Phytophylacica Sinica,2018,45(3):489-495. |
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| Authors: | Guo Jie Zhang Qin Zhang Dongfang Wen Jian Sun Chengzhong and Xie Caixiang |
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| Institution: | Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100193, China;Wuhan University of Technology, Wuhan 430070, Hubei Province, China,Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100193, China,Jiangsu Normal University, Xuzhou 221116, Jiangsu Province, China,Chengdu University of Traditional Chinese Medicine, Chengdu 611137, Sichuan Province, China,Chinese Academy of Surveying and Mapping, Beijing 100830, China and Institute of Medicinal Plant Development, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100193, China |
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| Abstract: | To determine the potential distribution areas and establish new climatic evaluation criteria for common buckwheat Fagopyrum dibtrys (D. Don) Hara in China, maximum entropy model (MaxEnt) and geographic information system (GIS) were used to predict the potential regions based on 38 ecological factors and 153 sample points. The results showed that the potential adaptive regions were mainly in the east of southwestern China, central China, eastern China and southern China (N 22°-35°) with an area of 250.99×104 km2, divided into suitable region, lowly suitable region and marginally suitable region based on Natural Breaks. The suitable regions were mainly in the Yangtze River basin with a total area of 88.00×104 km2. The ecological factors affecting the distribution of F. dibtrys were temperature of coldest month, precipitation of warmest quarter, altitude, precipitation of driest quarter and so on, among which the climate factors played the most important role. The results indicated that F. dibtrys could be expanded in Yunnan, Guizhou, Sichuan provinces and so on, and introduced to Shaanxi, Shanxi provinces and so on. |
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| Keywords: | Fagopyrum dibtrys (D Don) Hara maximum entropy model (MaxEnt) ecological suitable region ecological characteristics |
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