土地利用变化转移矩阵数据处理计算方法研究

Land Use Change Transfer Matrix Data Processing Calculation Method

转移矩阵是分析研究土地利用变化的数据基础,目前多数学者均是直接运用转移矩阵结果对土地利用变化情况进行分析研究,而对转移矩阵的数据处理过程及数据计算原理尚无系统详细的研究。为此,针对目前对土地利用变化转移矩阵数据处理计算方法研究的缺失,特别是田坎面积与其他地类面积之间转移计算难点问题研究的空白,对土地利用变化转移矩阵数据处理计算方法进行研究。基于ArcGIS环境构建计算模型,层层递进阐述转移矩阵的计算原理。将构建的计算模型检验不同地区的数据,均能够精确计算耕地与其余地类之间转移变化的面积,同时能得到准确的土地利用变化转移矩阵数据。研究结果可为从事自然资源工作的同行及土地利用变化研究的学者提供一套理解掌握土地利用变化转移矩阵数据处理计算的思路,以更好地掌握耕地面积变化,为实现耕地“占补平衡”“进出平衡”、耕地保护等提供理论和数据支撑。

Transfer matrix is the data basis for the analysis and study of land use change.At present,most scholars directly use the results of transfer matrix to analyze and study land use change,and there is no systematic and detailed study on the data processing process and data calculation principle of transfer matrix.In view of the lack of research on the calculation method of land use change transfer matrix data processing,especially the research on the difficult problem of transfer calculation between field area and other land types,this paper studies the calculation method of land use change transfer matrix data processing.Based on ArcGIS environment,the calculation model is constructed,and the calculation principle of transfer matrix is explained step by step.By testing the data of different regions,the calculation model constructed can accurately calculate the area of transfer change between cultivated land and its margin class,and obtain accurate transfer matrix data of land use change.The research in this paper provides a set of ideas for understanding and mastering the data processing and calculation of the transfer matrix of land use change for natural resources and land use change researchers.At the same time,it also provides theoretical and data support for people to better grasp the change of cultivated land area and realize the"balance of occupation and compensation""balance of access and access",and protection of cultivated land.