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FOREST RESOURCES WANAGEMENT ›› 2019›› Issue (4): 37-45.doi: 10.13466/j.cnki.lyzygl.2019.04.006

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A Prediction on the Potential Suitable Areas of Zelkova Schneideriana in Zhejiang Province Using Maximum Entropy Model

SUN Jiejie1(), JIANG Bo2, QIU Haojie3, GUO Jiahuan1, Yuan Weigao2, WU Danting2,3, XU Xuan1, WU Chuping2, JIAO Jiejie2, SHEN Aihua2()   

  1. 1. Nanjing Forestry University,Nanjing Jiangsu 210037
    2. Zhejiang Academy of Forestry,Hangzhou Zhejiang 310023
    3. Zhejiang Agriculture and Forestry University,Hangzhou Zhejiang 311300
  • Received:2019-06-17 Revised:2019-07-02 Online:2019-08-28 Published:2020-10-20
  • Contact: SHEN Aihua E-mail:164882506@qq.com;mailahshen@126.com

Abstract:

Studying the potential suitable habitats of endangered species Zelkova schneideriana and their response to environmental factors will be helpful to the work of site conservation and population expansion of Z.schneideriana.Based on a comprehensive survey data of 21 Z.schneideriana samples taken from Zhejiang ecological monitoring sample plots database,using ArcGIS and MaxEnt model adopted to predict its potential distribution area in Zhejiang.Then screen the dominant environmental factors and their optimal range.The mean AUC value of 17 simulations is 0.891,which indicated the model simulation has high precision.The result showed that the highly suitable growth area of Z.schneideriana in Zhejiang is mainly in the Wuyi—Suichang area in the west of Zhejiang,and Pujiang—Qiandaohu River basin,Ningbo—Zhoushan island,coastal area in Wenzhou and the surrounding area,the area is 6 thousand km 2.The MaxEnt show that precipitation seasonality(coefficient of variation),slope,mean air temperature of the wettest quarter and mean air temperature of the driest quarter are the main environmental factors that affect the distribution of Z.schneideriana.The most suitable range of them are 30~42 in precipitation seasonality(coefficient of variation),3~20° in slope,14~21℃ in mean air temperature of the wettest quarter,0~7℃ in mean air temperature of the driest quarter.

Key words: Zelkova schneideriana, MaxEnt, ecological suitability, distribution

CLC Number: