基于地理探测器的丹霞梧桐空间分布与生境因子的相关性

doi:10.13287/j.1001-9332.202008.018

应用生态学报 ›› 2020, Vol. 31 ›› Issue (8): 2671-2679.doi: 10.13287/j.1001-9332.202008.018

基于地理探测器的丹霞梧桐空间分布与生境因子的相关性

吴家荣, 韦宝婧, 胡希军^*, 朱满乐, 李芮芝, 冯雪晨

中南林业科技大学风景园林学院, 长沙 410000

收稿日期:2020-03-25 修回日期:2020-06-11 出版日期:2020-08-15 发布日期:2021-02-15
通讯作者: * E-mail: 120795043@qq.com
作者简介:吴家荣, 男, 1995年生, 硕士研究生。主要从事景观规划设计和地理信息研究。E-mail: rong11728@foxmail.com
基金资助:
国家林业局野生植物保护项目和韶关市野生动植物保护办公室项目(2016ZWZY06)、国家林业和草原局“十三五”重点学科(风景园林学)(林人发[2016]21号)和湖南省高等学校“双一流”建设项目(湘教通[2018]469号)资助

Correlation of spatial distribution and habitat factors of Firmiana danxiaensis based on GeoDetector

WU Jia-rong, WEI Bao-jing, HU Xi-jun^*, ZHU Man-le, LI Rui-zhi, FENG Xue-chen

School of Landscape Architecture, Central South University of Forestry and Technology, Changsha 410000, China

Received:2020-03-25 Revised:2020-06-11 Online:2020-08-15 Published:2021-02-15
Supported by:
This work was supported by the Wildlife Protection Project of State Forestry Administration and Department of Wildlife Conservation of Shaoguan (2016ZWZY06), the 13th Five-Year Key Subject(Landscape Architecture) of the National Forestry and Grassland Administration (Linrenfa [2016]21) and the “Double First Class” Construction Program of the Hunan Colleges (Xiangjiaotong [2018]469).

摘要/Abstract

摘要： 丹霞梧桐是中国丹霞地貌的特有种,识别影响其分布的主要环境驱动因子,可为保护丹霞梧桐及其生境提供科学依据。本研究以广东南雄丹霞梧桐县级自然保护区与广东丹霞山旅游风景区(核心景区)为研究区,运用地理探测器分析丹霞梧桐空间分布与两地生境因子的相关性(用q值衡量),分析要素包括地理要素(地貌形态成因类型、土壤亚类、高程、坡度、坡向)和气候要素(年均降水、年日照时数、年均相对湿度、年均风速)。结果表明: 影响丹霞梧桐空间分布的主要生境因子为土壤亚类、年日照时数、地貌形态成因类型。其中,丹霞梧桐生境的各因子相关性分析中,土壤亚类、年日照时数和地貌形态成因类型的q值大于所有因子q值的均值,具有较强相关性;丹霞梧桐生境因子的两两组合中,地貌形态成因类型∩年日照时数和土壤亚类∩年日照时数的交互作用表现为双因子增强且q值大于所有组合q值的均值,具有较强相关性;丹霞梧桐空间分布相关性的生态探测中,与其他各因子相比,土壤亚类、年日照时数以及地貌形态成因类型的q值具有显著差异。丹霞梧桐的空间分布主要与土壤亚类、地貌形态成因类型、年日照时数存在显著相关性,同时也表明,地理探测器为植被生境因子分析、预测物种分布等研究提供了有益的方法探索。

关键词: 丹霞梧桐, 生境因子, 地理探测器, 空间相关性

Abstract: Firmiana danxiaensis is an endemic species of Danxia landform in China. Identifying the main driving factors of its distribution can provide scientific basis for the conservation of F. danxiaensis and related habitats. With GeoDetector, we analyzed the correlation (measured by q value) between the spatial distribution of F. danxiaens and its habitat factors in F. danxiaens Nature Reserve in Nanxiong City and the Guangdong Danxia Mountain Tourism Scenic Area (core scenic area). Factors measured in this study included geographical elements (geomorphological type, soil subtype, elevation, slope, aspect) and climatic elements (annual precipitation and annual sunshine hours, mean annual relative humidity and mean annual wind speed). Our results showed that the main habitat factors affecting the spatial distribution of F. danxiaensis were soil subtype, annual sunshine hours, and geomorphologic genesis type. The q values of those three factors were higher than the mean values of all factors. In the pairwise combination of habitat factors, the interaction between geomorphologic genesis types ∩ annual sunshine hours and soil subtypes ∩ annual sunshine hours was enhanced by two factors and the q value was greater than the mean value of all combinations, with a strong correlation. Compared with other factors, the q value of soil subtypes, annual sunshine hours and geomorphologic genesis types were significantly different in the ecological detection of spatial distribution correlation of F. danxiaensis. The spatial distribution of F. danxiaensis was significantly correlated with soil subtypes, geomorphologic genesis types and annual sunshine hours, indicating that the GeoDetector is a useful method for vegetation habitat factor analysis and species distribution prediction.

Key words: Firmiana danxiaensis, habitat factor, GeoDetector, spatial correlation

吴家荣, 韦宝婧, 胡希军, 朱满乐, 李芮芝, 冯雪晨. 基于地理探测器的丹霞梧桐空间分布与生境因子的相关性[J]. 应用生态学报, 2020, 31(8): 2671-2679.

WU Jia-rong, WEI Bao-jing, HU Xi-jun, ZHU Man-le, LI Rui-zhi, FENG Xue-chen. Correlation of spatial distribution and habitat factors of Firmiana danxiaensis based on GeoDetector[J]. Chinese Journal of Applied Ecology, 2020, 31(8): 2671-2679.

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基于地理探测器的丹霞梧桐空间分布与生境因子的相关性

Correlation of spatial distribution and habitat factors of Firmiana danxiaensis based on GeoDetector

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