基于ArcGIS ModelBuilder的LUCC转移矩阵自动计算模型研究

作为描述土地变化转移总体结构与数量的基础性模型,转移矩阵已广泛应用于土地利用/覆被变化领域.现有文献大多直接给出所研究区域的LUCC转移矩阵计算结果,但很少讨论分析其具体计算方法与步骤.针对这一情况,文中在界定总结转移矩阵概念和性质的基础上,详细描述A rcGIS平台下基于土地利用/覆盖栅格分类数据人工手动计算转移矩阵...

A study of LUCC transfer matrix automated computation model based on ArcGIS ModelBuilder

As a basic model to describe the overall structure and quantity of land change transfer,transfer matrix has been widely used in the research field of land use/cover change(LUCC).Most of the existing literatures directly give the LUCC transfer matrix calculation results of the studied area,and few of them discuss its concrete calculation methods and steps.In view of this situation,the concept and properties of transfer matrix are firstly defined and summarized in this paper.And then,the process and tools of manual calculation of transfer matrix under ArcGIS platform using land use/cover raster classification data are describes in detail,and the ModelBuilder technology are adopted to implement a batch automatic calculation tool model of transfer matrix by integrating these existing tools.Finally,taking the land use classification data of Nanjing,Zhengzhou and Xuzhou as examples,the conventional manual method and the batch automatic method are compared and tested.The test results show that the designed batch computing tools can averagely shorten the calculation time by more than 10 times,and effectively overcome the shortage of the manual method,such as frequent human-computer interaction,low efficiency and being error-prone.