基于最大熵模型的藏药翼首草生态适宜性研究

发布时间：2018-06-29 00:49

本文选题：藏药 + 翼首草　；参考：《中国中药杂志》2017年10期

【摘要】：研究翼首草的生态适宜性,为翼首草GAP种植选址和区域发展提供参考。通过中国数字标本馆、文献和实地考察等收集67个翼首草分布点,利用Maxent和GIS技术对翼首草进行适宜性分析。发现翼首草潜在分布区域主要分布在西藏东部、四川西部、青海南部、云南西北部、甘肃南部;对翼首草生长和分布贡献率大的主要生态因子为海拔(62%)、最暖季风降水量(14.4%)、降水量变异系数(7.2%)、最干季度平均温度(3.5%)、土壤导电率(3%)、阳离子交换总量(2.4%)、温度季节性变化标准差(2.2%)。应用Maxent模型对翼首草进行生态适宜性研究,其准确度高,可为翼首草野生抚育及GAP种植选址提供科学依据和参考。
[Abstract]:To study the ecological suitability of pterygium pterygii and provide reference for gap planting site and regional development. Through the collection of 67 distribution sites of the Chinese digital herbarium, literature and field investigation, the suitability analysis was carried out by using Maxent and GIS techniques. It was found that the potential distribution regions were mainly in eastern Tibet, western Sichuan, southern Qinghai, northwest Yunnan and southern Gansu. The main ecological factors contributing to the growth and distribution of Pterygium pterygii were altitude (62%), warm monsoon precipitation (14.4%), coefficient of variation (7.2%), seasonal average temperature (3.5%), soil conductivity (3%), total cation exchange (2.4%), temperature seasonal variation standard deviation (2.2%). Maxent model was used to study the ecological suitability of Pterocarpus pterygii. The accuracy of the study was high, which could provide scientific basis and reference for wild tending and gap planting site selection.
【作者单位】：成都中医药大学民族医药学院;中国医学科学院北京协和医学院药用植物研究所;
【基金】：国家自然科学基金面上项目(81274193) 四川省教育厅省属高校科研创新团队建设计划项目(11TD004)
【分类号】：R29;S567.239

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