Prediction of potential suitable habitat for citrus in Yichang City based on MaxEnt model
[Purpose]To scientifically predict the potential suitable habitats for ponkans,oranges,and tangerines in Yichang City,and provide a reference for the sustainable development of these citrus species in the region.[Method]After conducting field surveys to collect sample sites for pomkans,oranges and tangerines,the Maximum Entropy Model(MaxEnt)was used to predict the potential suitable habitats for citrus species in Yichang City.The response relationship between environmental factors and the growth of ponkans,oranges and tangerines was also analyzed.[Result](1)Contribution analysis and collinearity diagnosis were performed on 31 initially identified environmental factors such as climate,soil,and terrain.Furthermore,this analysis enabled us to identify the primary limiting factors affecting the potential distribution of citrus.The MaxEnt software was utilized to assess the accuracy of the model via the receiver operating characteristic(ROC)curve.The results indicated that the predicted range of potentially suitable growing areas for ponkans and oranges was mainly centered in Zigui,Wufeng,and Changyang counties.Among the influencing factors,the minimum temperature during the coldest month and the distance to the road emerged were found to be the most significant determinants of the distribution of these citrus fruits.(2)The predicted potential suitable areas for tangerines were primarily concentrated in Zhijiang,Dangyang,Yidu,Xiaoting and Yiling districts.(3)Among the influencing factors,the distance to the road,elevation,average annual minimum temperature,slope and soil organic carbon content stand out as the most crucial determinants affecting the distribution of tangerines.[Conclusion]The findings of this research provide valuable insights for the selection of optimal planting areas for ponkans,oranges and tangerines in Yichang City,and serve as a reliable reference for future agricultural planning and decision making.
potential suitable areacitrusMaxEnt modelYichang City
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