地理学报 ›› 2017, Vol. 72 ›› Issue (1): 116-134.doi: 10.11821/dlxb201701010

• 地理探测器原理与应用 • 上一篇    下一篇

地理探测器:原理与展望

王劲峰1,2(), 徐成东1   

  1. 1. 中国科学院地理科学与资源研究所 资源与环境信息系统国家重点实验室,北京 100101
    2. 中国科学院大学,北京 100049
  • 收稿日期:2016-10-15 修回日期:2011-01-05 出版日期:2017-01-20 发布日期:2017-03-23
  • 作者简介:

    作者简介:王劲峰(1965-), 男, 研究员, 中国地理学会会员(S110009913M), 主要从事地理信息科学的理论创新和实践。E-mail: wangjf@igsnrr.ac.cn

  • 基金资助:
    国家自然科学基金项目(41531179, 41601419, 41421001);科技部科技基础性工作专项(2014FY121100);公益性行业科研专项(GYHY20140616);LREIS自主创新项目(088RA200YA)

Geodetector: Principle and prospective

Jinfeng WANG1,2(), Chengdong XU1   

  1. 1. State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2016-10-15 Revised:2011-01-05 Online:2017-01-20 Published:2017-03-23
  • Supported by:
    National Natural Science Foundation of China, No.41531179, No.41601419, No.41421001;Ministry of Science and Technology of China, No.2014FY121100, Special Scientific Research Fund of Public Welfare Profession of China, No.GYHY20140616;Science and Technology Innovation Project of LREIS, No.088RA200YA

摘要:

空间分异是自然和社会经济过程的空间表现,也是自亚里士多德以来人类认识自然的重要途径。地理探测器是探测空间分异性,以及揭示其背后驱动因子的一种新的统计学方法,此方法无线性假设,具有优雅的形式和明确的物理含义。基本思想是:假设研究区分为若干子区域,如果子区域的方差之和小于区域总方差,则存在空间分异性;如果两变量的空间分布趋于一致,则两者存在统计关联性。地理探测器q统计量,可用以度量空间分异性、探测解释因子、分析变量之间交互关系,已经在自然和社会科学多领域应用。本文阐述地理探测器的原理,并对其特点及应用进行了归纳总结,以利于读者方便灵活地使用地理探测器来认识、挖掘和利用空间分异性。

关键词: 空间分异性, 地理探测器, q统计, 类型量

Abstract:

Spatial stratified heterogeneity is the spatial expression of natural and socio-economic process, which is an important approach for human to recognize nature since Aristotle. Geodetector is a new statistical method to detect spatial stratified heterogeneity and reveal the driving factors behind it. This method with no linear hypothesis has elegant form and definite physical meaning. Here is the basic idea behind Geodetector: assuming that the study area is divided into several subareas. The study area is characterized by spatial stratified heterogeneity if the sum of the variance of subareas is less than the regional total variance; and if the spatial distribution of the two variables tends to be consistent, there is statistical correlation between them. Q-statistic in Geodetector has already been applied in many fields of natural and social sciences which can be used to measure spatial stratified heterogeneity, detect explanatory factors and analyze the interactive relationship between variables. In this paper, the authors will illustrate the principle of Geodetector and summarize the characteristics and applications in order to facilitate the using of Geodetector and help readers to recognize, mine and utilize spatial stratified heterogeneity.

Key words: spatial stratified heterogeneity, Geodetector, q-statistic, category variable