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研究川牛膝在全国范围的潜在分布及种植空缺,有利于为其实地保护及种植推广工作提供依据。该文结合63个川牛膝地理分布数据和49个相关生态因子,利用3S技术及Max Ent模型对川牛膝在全国的潜在分布进行预测及种植空缺分析。研究结果表明:(1)川牛膝在全国潜在分布面积约634 385.80 km2,主要分布于四川省的东北部、东南部,云南省的北部、东南部,贵州省的西部、西南部,重庆市的西南部、东北部,陕西省的西南部,甘肃省的东南部,湖北省的西部,广西省的西部,西藏自治区的东南部等区域;(2)影响川牛膝生长的主要生态因子是降水量、海拔、最冷月极低温度、土壤类型、月均温等;(3)全国川牛膝种植空缺区域主要位于四川省广元市、绵阳市、雅安市、乐山市、凉山州、攀枝花市,陕西省汉中市,云南省大理自治州、怒江自治州、楚雄自治州、保山市、曲靖市、文山自治州,贵州省黔西南自治州等。该研究结果对掌握川牛膝的生长环境、预测在全国的潜在分布及其栽培推广具有重要意义。
Research on the potential distribution and planting vacancies of Achyranthis chuanxiong in the whole country will be helpful to provide the basis for its field protection and cultivation promotion. Based on the geographical distribution data of 63 Achyranthes bidentata and 49 related ecological factors, this paper predicted the potential distribution of Achyranthes bidentata in China and the analysis of planting vacancy using 3S technology and Max Ent model. The results show that: (1) Achyranthes bidentata distributes in the whole country about 634 385.80 km2, mainly distributed in the northeast and southeast of Sichuan Province, northern and southeast of Yunnan Province, western and southwestern Guizhou Province, Chongqing Municipality (2) The main ecological factors that affect the growth of Achyranthes bidentata are: the southwest of Shaanxi Province, the southwest of Shaanxi Province, the southeast of Gansu Province, the western of Hubei Province, the western of Guangxi Province and the southeast of Tibet Autonomous Region; Precipitation, altitude, the coldest month of the lowest temperature, soil type, monthly average temperature, etc .; (3) Achyranthes koraiensis planting vacant areas are mainly located in Guangyuan City, Mianyang City, Ya’an City, Leshan City, Liangshan Prefecture, Panzhihua City, Hanzhong City, Shaanxi Province, Dali Autonomous Prefecture of Yunnan Province, Nujiang Autonomous Prefecture, Chuxiong Autonomous Prefecture, Baoshan City, Qujing City, Wenshan Autonomous Prefecture and Guizhou Autonomous Prefecture. The results of this study to master the growth environment of Achyranthisura, predicting the potential distribution in the country and its cultivation and promotion of great significance.