Modeling habitat distribution of Cornus officinalis with Maxent modeling and fuzzy logics in China

被引:72
作者
Cao, Bo [1 ]
Bai, Chengke [1 ,2 ]
Zhang, Linlin [1 ]
Li, Guishuang [1 ]
Mao, Mingce [3 ]
机构
[1] Shaanxi Normal Univ, Coll Life Sci, Xian 710119, Peoples R China
[2] Shaanxi Normal Univ, Coinnovat Ctr Qinba Reg Sustainable Dev, Xian 710119, Peoples R China
[3] Meteorol Bur Shaanxi Prov, Shaanxi Climate Ctr, Xian 710064, Peoples R China
基金
中国国家自然科学基金;
关键词
Cornus officinalis; habitat distribution; Maxent modeling; fuzzy logics; medicinal plant; SPECIES DISTRIBUTIONS; GENETIC DIVERSITY; NICHE; COMPLEXITY; PLANT;
D O I
10.1093/jpe/rtw009
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Aims Predicting suitable habitat distribution is an effective way to protect rare or endangered medicinal plants. Cornus officinalis is a perennial tree growing in forest edge and its air-dried pericarp is one of the traditional Chinese medicines (TCM) with significant medicinal values. In recent years, C. officinalis has undergone severe degeneration of its natural habitat owing to growing market demands and unprecedented damage to the forests. Moreover, the degeneration of suitable habitat has threatened the supply of medicinal materials, and even led to the extinction of some engendered medicinal plant species. In this case, there is a great risk to introduce and cultivate medicinal plants if planners determine the suitable cultivation regions based on personal subjective experience alone. Therefore, predicting suitable potential habitat distribution of medicinal plants (e.g. C. officinalis) and revealing the environmental factors determining such distribution patterns are important to habitat conservation and environmental restoration. Methods In this article, we report the results of a study on the habitat distribution of C. officinalis using maximum entropy (Maxent) modeling and fuzzy logics together with loganin content and environmental variables. The localities of 106 C. officinalis in China were collected by our group and other researchers and used as occurrence data. The loganin content of 234 C. officinalis germplasm resources were tested by high-performance liquid chromatography (HPLC) and used as content data. 79 environmental variables were selected and processed with multicollinearity test by using Pearson Correlation Coefficient (r) to determine a set of independent variables. The chosen variables were then processed in the fuzzy linear model according to the cell values (maximum, minimum) of localities with estimated loganin content. The SDMtoolbox was used to spatially rarefy occurrence data and prepare bias files. Furthermore, combined Maxent modeling and fuzzy logics were used to predict the suitable habitat of C. officinalis. The modeling result was validated using null-model method. Important Findings As a result, six environmental factors including tmin3, prec3, bio4, alt, bio12 and bio3 were determined as key influential factors that mostly affected both the habitat suitability and active ingredient of C. officinalis. The highly suitable regions of C. officinalis mainly distribute in a 'core distribution zone' of the east-central China. The statistically significant AUC value indicated that combined Maxent modeling and fuzzy logics could be used to predict the suitable habitat distribution of medicinal plants. Furthermore, our results confirm that ecological factors played critical roles in assessing suitable geographical regions as well as active ingredient of plants, highlighting the need for effective habitat rehabilitation and resource conservation.
引用
收藏
页码:742 / 751
页数:10
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