虎杖生态适宜性区划研究  

Study on Ecological Suitability Zoning of Polygonum cuspidatum Sieb.et Zucc.

作　　者：李宇航 程楚楚 杨爽 刘丛彬 尹永飞 谢冬梅 汪宏保 LI Yuhang;CHENG Chuchu;YANG Shuang;LIU Congbin;YIN Yongfei;XIE Dongmei;WANG Hongbao(College of Pharmacy,Anhui University of Chinese Medicine,Hefei 230012,China;Institute of Conservation and Development of Traditional Chinese Medicine Resources,Anhui Academy of Chinese Medicine,Hefei 230012,China;Shitai County Erbao Agricultural Development Co.Ltd.,Shitai 245107,China)

机构地区：[1]安徽中医药大学药学院,安徽合肥230012 [2]安徽省中医药研究院中药资源保护与开发研究所,安徽合肥230012 [3]石台县二宝农业发展有限公司,安徽石台245107

出　　处：《中国中医药信息杂志》2022年第11期1-4,共4页Chinese Journal of Information on Traditional Chinese Medicine

基　　金：安徽省科技厅科技扶贫示范项目(202007d06020020);安徽中医药大学校级探索性课题(2021hxts12)。

摘　　要：目的通过对影响虎杖生长发育的生态因子分析研究,预测其在我国的生态适宜性分布区,为虎杖的适宜种植生产区选择提供依据。方法查询中国数字植物标本馆、中国自然保护区标本资源共享平台的虎杖样点信息,共筛选328个经纬度坐标,结合55个生态因子,运用最大熵(MaxEnt)模型和地理信息系统对虎杖分布进行适宜性区划。结果虎杖生态分布模型的受试者工作特征曲线下面积>9.0,保证了模型预测结果的准确性,说明MaxEnt模型可用于此研究。MaxEnt模型预测结果较为理想,筛选出23个影响虎杖分布的生态因子,其中11月份降水量、土壤类型、4月份降水量、9月份平均温度、植被类型、季节降水量变异系数、年均温度变化范围、5月份降水量是影响我国虎杖分布的主要生态因子。结论本研究对虎杖生态分布进行等级区划,为其野生资源可持续利用提供依据。Objective To study the ecological factors affecting the growth and development of Polygonum cuspidatum Sieb.et Zucc.;To predict the ecological suitability distribution area in China;To provide a scientific basis for the selection of suitable planting and production areas of Polygonum cuspidatum Sieb.et Zucc.in China.Methods Totally 328 longitude and latitude coordinates were screened through the search for the specimen information of Polygonum cuspidatum Sieb.et Zucc.in China Digital Herbarium and China Cature Reserve Specimen Resource Sharing Platform.Combined with 55 ecological factors,the main ecological factors affecting the suitability distribution of Polygonum cuspidatum Sieb.et Zucc.were determined based on the results of maximum entropy(MaxEnt)model calculation and geographic information system.Results The area under the receiver operating characteristic curve of the ecological distribution model of Polygonum cuspidatum Sieb.et Zucc.>9.0,which ensured the accuracy of the prediction result of the model,indicating that MaxEnt model could be used in this study.The prediction results of MaxEnt model were ideal,and 23 ecological factors affecting the distribution were selected.Among them,precipitation in November,soil type,precipitation in April,average temperature in September,vegetation type,coefficient of variation of seasonal precipitation,variation range of average annual temperature,and precipitation in May were the main ecological factors affecting the distribution of Polygonum cuspidatum Sieb.et Zucc.in China.Conclusion This study provides a basis for the ecological distribution of Polygonum cuspidatum Sieb.et Zucc.,which can provide a basis for the sustainable utilization of its wild resources.

关 键 词：虎杖 生态适宜性区划 地理信息系统 最大熵模型 生态因子 

分 类 号：R282.5[医药卫生—中药学]