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01.12.2014 | Research | Ausgabe 1/2014 Open Access

Chinese Medicine 1/2014

Determination of production regions for pollution-free Chinese medicinal materials by geographic information system: Achyranthes bidentata (Niu Qi) in Tianjin as an example

Zeitschrift:
Chinese Medicine > Ausgabe 1/2014
Autoren:
Cai-xiang Xie, Huan Wang, Lin-fang Huang, Hui Li, Jing-yuan Song
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​1749-8546-9-25) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

SJY conceived and designed the study. XCX, WH, HLF and LH performed the data analysis. XCX and LH wrote the manuscript. All authors read and approved the final version of the manuscript.

Abstract

Background

The land and ecology suitability for producing pollution-free Chinese medicinal materials should be evaluated based on Geographic Information System (GIS). This study aims to determine production regions for pollution-free Achyranthes bidentata in Tianjin as a case to illustrate the workflow based on GIS.

Methods

The slopes, land usage, residential areas and roads were selected to evaluate the land suitability, to avoid the potential pollution sources. The ecology suitability evaluation was performed based on the soil type and nine climate factors, such as active accumulated temperature, mean January temperature, mean July temperature, the lowest temperature in January, the highest temperature in July, mean annual temperature, sunshine duration, relative humidity, annual precipitation, affecting the natural growth of A. bidentata.

Results

The best production regions for pollution-free A. bidentata in Tianjin, with a total area of approximately 575 km2, were found in Jinghai County, Ninghe County, Wuqing District, and Dagang District.

Conclusion

This study illustrated a workflow based on GIS for determining the production regions in Tianjin for pollution-free A. bidentata.
Zusatzmaterial
Additional file 1: Land utilization. (XLS 323 KB)
13020_2013_219_MOESM1_ESM.xls
Authors’ original file for figure 1
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Authors’ original file for figure 8
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