Detection and analysis of effect of geographical environmental factors on spatial distribution of artemisinic acid in Artemisia annua
Received:October 12, 2017  
DOI:
KeyWord:Artemisia annua  artemisinic acid  spatial differentiation  geographic detectors  influencing factors
Author NameAffiliationE-mail
SHI Ting-ting State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medical, China Academy of Chinese Medical Sciences, Beijing 100700, China  
ZHANG Xiao-bo State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medical, China Academy of Chinese Medical Sciences, Beijing 100700, China  
GUO Lan-ping State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medical, China Academy of Chinese Medical Sciences, Beijing 100700, China  
WANG Hui State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medical, China Academy of Chinese Medical Sciences, Beijing 100700, China  
JING Zhi-xian State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medical, China Academy of Chinese Medical Sciences, Beijing 100700, China  
HUANG Lu-qi State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medical, China Academy of Chinese Medical Sciences, Beijing 100700, China huangluqi01@126.com 
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Abstract:
      Dao-di herbs are preferred by long-term clinical application of Chinese medicine, they are produced in a specific area and affected by the specific production and processing methods. Dao-di herbs have a high reputation, compared with other regions produced by the same kind of herbs with good quality, good efficacy and stable quality characteristics. Geo-herbal is a unique concept that has been formed by the history of Chinese civilization for thousands of years and the history of Chinese medicine. According to the definition of geo-herbal, it can be seen that there are some differences in the quality and efficacy of the same kind of medicinal herbs in different regions, and there is some similarity in the specific area. In this study, based on the content of artemisinic acid in sampling points and its potential environmental factors, the effects of geographical environment factors on the spatial distribution of artemisinic acid content in Artemisia annua were studied by using the geophysical model. The results show that the spatial distribution of artemisinic acid content is the result of a combination of multiple factors. The effects of environmental factors on the spatial distribution of artemisinic acid were in the order of soil type (0.233) > radiation (0.208) > vegetation type (0.192) > elevation (0.171) > sunshine (0.170) > annual mean temperature (0.153) > annual precipitation (0.111) > slope (0.110) > relative humidity. Among them, the soil type and the amount of radiation are the main influencing factors, and the main influencing area is in the soil type as the initial soil and the average annual radiation of 1 200-1 400 kWh·m-2. The main influencing factors selected in this study can be used to monitor the spatial distribution of artemisinic acid by remote sensing technology, so as to provide the theoretical basis for the cultivation of A. annua.
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