PROGRESS IN GEOGRAPHY ›› 2010, Vol. 29 ›› Issue (11): 1408-1413.doi: 10.11820/dlkxjz.2010.11.034

• Original Articles • Previous Articles     Next Articles

Scale Issues in the Driving Force Analysis of Land Change

YAN Xiang, CAI Yunlong, CHEN Ruishan, LI Hao   

  1. College of Urban and Environmental Sciences, Peking University;
    Key Laboratory of Analysis and Simulation ofEarth Surface Processes, Ministry of Education, Beijing 100871, China
  • Received:2010-03-01 Revised:2010-05-01 Online:2010-11-25 Published:2010-11-25


Scale issue is a focus but also a difficult theme in the driving forces analysis of land change. While statistics is very popular in analyzing drivers of land change, there is no particular research on the impact of scale in this domain. This article summarizes the methods often used in the driving force analysis of land change, recognizes five scale issues needed to concern. They are the impact of 5 situations (the extent of the study area, the grain size, the time range, the time period of data, and the classification accuracy) on the analysis results when using the term of‘scale’, and all of these 5 situations can be concluded into data aggregation. If the impact of data aggregation is not treated correctly, the potential dangers exist in two aspects: (1) the results is meaningless, (2) the policies based on the analysis are incorrect and harmful. So far, there are 3 approaches to solve this problem: (1) basic entity approach, (2) sensitivity analysis approach, and (3) frame-independent analysis approach. These approaches can be applied and more researches are needed in the domain of the driving force analysis of land change.

Key words: driver, land change, scale, statistics