Ecological Suitability Regionalization of Ziziphus jujuba
10.13422/j.cnki.syfjx.20210717
- VernacularTitle:枣的生态适宜性区划分析
- Author:
Yan-qin HOU
1
;
Qing-shan YANG
1
;
Peng-fei ZHANG
1
;
Xiao-li XU
1
;
Li-ya LI
1
;
Zhi-xian JING
2
;
Jin-mei OU
1
Author Information
1. School of Pharmacy，Anhui University of Chinese Medicine，Hefei 230012，China
2. State Key Laboratory Breeding Base of Dao-di Herbs，National Resource Center for Chinese Materia Medica，China Academy of Chinese Medical Sciences，Beijing 100700，China
- Publication Type:Research Article
- Keywords:
Ziziphus jujuba;
environmental factors;
potential distribution areas;
maximum entropy （MaxEnt） model;
ArcGIS
- From:
Chinese Journal of Experimental Traditional Medical Formulae
2021;27(12):168-175
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the main factors affecting the Ziziphus jujuba distribution and expand the understanding of its distribution and the corresponding influencing factors by comparing the distribution sites of Z. jujuba predicted by models with those recorded in the literature. Method:More than 200 distribution sites of Z. jujuba accompanied by 55 environmental factors were obtained from literature and specimen review. The environmental factors that affect the distribution of Z. jujuba were explored by maximum entropy （MaxEnt） model， and the potential distribution areas of Z. jujuba in China were analyzed by ArcGIS， followed by the verification of the main environmental factors using receiver-operating characteristic （ROC） curve and Jackknife method. Result:The area under the curve （AUC） values for the test data and training data were both greater than 0.9， which perfectly satisfied the standard， indicating that the research results were accurate and reliable. Conclusion:The annual average temperature， the average temperature in May， the average temperature in the warmest season， vegetation type， soil type， average temperature in June， average temperature in September， and average temperature in August are proved to be the main environmental factors affecting the distribution of Z. jujuba， which can be found almost all over China， except for Heilongjiang and Tibet. Z. jujuba is most suitable to be planted in southeastern Sichuan， Chongqing， southern Gansu， Ningxia， most areas of central Shaanxi， eastern and southwestern Shanxi， Henan， eastern and northern Hubei， northern and eastern Anhui， Shandong， Hebei， Beijing， Tianjin， western Liaoning， and Zhejiang. As revealed by literature review， the most suitable growing areas of Z. jujuba are southeastern Sichuan， central Shaanxi， southwestern Shanxi， western and northern Henan， Shandong， and southwestern and eastern Hebei.
