Wang Zhe, Li Bo, Xiao Jing-Lei, Jiang Da-Cheng
School of Pharmaceutical Sciences, Changchun University of Chinese Medicine, Changchun 130117, China.
Jilin Engineering Center for Traditional Chinese Medicine Resources in Changbai Mountain, Changchun 130117, China.
Zhongguo Zhong Yao Za Zhi. 2017 Nov;42(22):4373-4377. doi: 10.19540/j.cnki.cjcmm.2017.0187.
At the urgent practical issue of resource protection and artificial cultivation area selection of Dioscorea nipponica, the dominant environmental factors affecting the distribution of D. nipponicain Jilin province were selected by field investigation and using the maximum information entropy model and geographic information technology. MaxEnt model study found that the standard deviation of seasonal variation of temperature, precipitation in October and other six environmental factors on the growth of D. nipponica are the greatest impacting factors. The range of suitability for the growth of D. nipponica was 4.612 08×10-6-0.544 31, and the regionalization study was divided into four parts: high fitness area, middle fitness area, low fitness area and unfavorable area. The high fitness area is concentrated in the central and southern areas of Jilin Province, using ArcGIS statistical environment factors in the appropriate area of the numerical situation. The results showed that the regionalization study of D. nipponica was basically the same as the actual situation. It is clear that the natural environment suitable for the growth of D. nipponica is also the basis for the protection of the resources and the selection of cultivated area.
