中国县域土地利用结构类型研究

论文简要阐述了土地利用结构和土地利用结构类型研究的意义,进而提出了土地利用结构类型划分的原则、依据。在此基础上,基于土地利用分县的详查数据,以全国2475个县域为基本单元,运用最小方差法对其进行了土地利用结构类型的划分。对初次分类结果进行分析,制定原则并对其进行处理,将定性分析与定量研究相结合,最终确立了一个由6个土地利用结构系列和44个土地利用结构类型构成的中国县域土地利用结构类型分类系统。最后,对中国县域土地利用主要结构类型的地域分异规律及开发利用方向进行了探讨。

Study on the land use structure of Chinese counties

Some forerunners have studied regional land use structure.But there is no precedent of study on the land use structure of counties,especially on a nationwide scale.Therefore,this study will take land use structure of Chinese counties as a primary study object and discuss the structure of land use from a new point of view.First,it gathers,disposes and analyzes“The Sub - areas of Land Resource Utilization”,which is released by National Land Resource Survey Office.Then land use structure is classified by means of Least Square Error,with chosen guidelines and set up classification system.Second,according to the established principles,the primary classification results are analyzed and dealt with.Furthermore,by combining qualitative analysis from top to bottom and quantitative analysis from bottom to top,a scheme of classification,with six series and forty - four styles of land use structure,is set up.According to the result of classification,this paper selects the main styles of land use structures in China.By the method of percentiles,the authors make a conclusion that the following thirteen styles of land use structure make up of the main styles of land use structures in China:Gg,Ff,Uu,Ggu,Uug,Ffa,Ffau,Aa,Ggf,Aaw,Aaf,Aac and Ffua.There are1565counties belonging to those styles,making up79.86%of the total country's area.At the end,this paper discusses systematically on the main thirteen styles of land use structure characters,the rules of territorial distribution and the utilization perspective.