中药材的生产和环境密切相关，利用地理信息系统和现代信息科学技术开展其生态适宜性评价和生产适宜区研究具有重要的现实意义。地黄种植过程中，根系产生分泌物和残茬腐解物会对下一茬地黄生长产生不良影响，因此对于地黄的生产需要进行规划。本文主要基于中国地面气候资料日值数据集2009-2018年十年气象数据，应用相似度分析和空间分析法，以焦作地区道地药材的生态因子为对照，从气候和土壤两个方面，利用ArcGIS软件进行河南地黄的生产区划。结果表明，河南最适宜种植地黄的地区为北部、西部以及部分中部地区，并得到地黄的每年种植的最大面积为94.942千公顷，可以为河南人工种植地黄提供科学依据。

The production of Chinese medicinal materials is closely related to the environment, so it is of great practical significance to evaluate its ecological suitability and study its suitable production area by using geographic information system and modern information technology. In the process of planting Rehmannia, exudates produced by the root system and decomposed matters from stubble will have adverse effects on the growth of the next Rehmannia. Therefore, the production of Rehmannia needs to be planned. This paper is mainly based on the meteorological data from 2009 to 2018, which is provided by Daily Value Data Set of Chinese Surface Climatic Data. Using similarity analysis and spatial analysis, based on the ecological factors of genuine medicinal materials in Jiaozuo area, the production division of henan Rehmannia was conducted by using ArcGIS from two aspects of climate and soil. The results show that the most suitable areas for planting Rehmannia are in north, west and parts of central part of Henan province, also get the maximum annual planting area of Rehmannia is 94942 hectares. This paper can provide scientific basis for planting Rehmannia artificially in Henan province.