Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (1): 224-231.DOI: 10.16178/j.issn.0528-9017.20231093

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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

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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