浙江农业科学 ›› 2025, Vol. 66 ›› Issue (1): 224-231.DOI: 10.16178/j.issn.0528-9017.20231093

• 资源与环境 • 上一篇    下一篇

基于MaxEnt模型对泰顺县多花黄精适生区的预测及评估

姜武1(), 张立华2, 刘雷雷3, 章书声3,*()   

  1. 1.浙江省亚热带作物研究所,浙江 温州 325005
    2.泰顺县自然资源和规划局,浙江 温州 325500
    3.浙江乌岩岭国家级自然保护管理中心,浙江 温州 325500
  • 收稿日期:2023-11-09 出版日期:2025-01-11 发布日期:2025-01-14
  • 通讯作者: 章书声,高级工程师,从事生物生态学与开发利用研究,E-mail:zhangshusheng323@163.com
  • 作者简介:姜武,副研究员,从事药用植物学和林下经济资源开发研究,E-mail:jiangwu8888@163.com
  • 基金资助:
    泰顺县农业科技创新研究院科研项目;温州市农业新品种选育协作组项目(2019ZX003-1);泰顺县农业产业提升项目(TY20230014)

Evaluation and prediction of habitat suitability of Polygonatum cyrtonema Hua in Taishun County based on MaxEnt model

JIANG Wu1(), ZHANG Lihua2, LIU Leilei3, ZHANG Shusheng3,*()   

  1. 1. Zhejiang Institute of the Subtropical Crops, Wenzhou 325005, Zhejiang
    2. Taishun County Natural Resources and Planning Bureau, Wenzhou 325500, Zhejiang
    3. Zhejiang Wuyanling National Nature Conservation Management Center, Wenzhou 325500, Zhejiang
  • Received:2023-11-09 Online:2025-01-11 Published:2025-01-14

摘要:

多花黄精野外资源匮乏,市场需求量大,研究泰顺多花黄精的生态适生性具有重要意义。该研究收集并筛选出29份多花黄精野外自然分布点位和8个环境变量,构建MaxEnt模型,模型拟合度高。结果表明,海拔、9月太阳辐射、年均温度变化范围、最冷季度降水量、pH值、8月平均温度是影响多花黄精分布的主导环境变量。对多花黄精4个适生区在泰顺县19个乡镇的分布面积进行重分类,发现泰顺县内多花黄精的高适生面积为63.01 km2,其中罗阳镇、龟湖镇、司前镇、泗溪镇和竹里镇排行前列。该模型结果可靠,建议在多花黄精高适生区做好野生资源保护及人工规范化栽培。

关键词: 多花黄精, 生态适生性, MaxEnt模型, 刀切法

Abstract:

The wild resources of Polygonatum cyrtonema Hua are scarce, and the market demand is large. Therefore, it is of great significance to study the ecological suitability of Polygonatum cyrtonema Hua in Taishun. In this study, 29 distribution points of Polygonatum cyrtonema Hua in the wild were collected and 8 environmental variables were screened. A MaxEnt model was constructed, and the model fitting degree was high. The comparative analysis results showed that altitude, September solar radiation, annual temperature range, precipitation in the coldest quarter, pH value, August average temperature were the dominant environmental variables affecting the distribution of Polygonatum cyrtonema Hua. The distribution area of Polygonatum cyrtonema Hua in four suitable areas in Taishun was reclassified, and it was found that the high suitable area of Polygonatum cyrtonema Hua in Taishun County was 63.01 km2. Among them, Luoyang Town, Guihu Town, Siqian Town, Sixi Town and Zhuli Town were ranked among the top. The model results were reliable, and it is suggested to protect wild resources and standardize artificial cultivation in the high suitable areas of Polygonatum cyrtonema Hua.

Key words: Polygonatum cyrtonema Hua, ecological adaptability, MaxEnt model, Jackknife test

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