沱江流域产业结构与土地利用结构的关系研究

以美国经济学家钱纳里工业化阶段理论作为依据,将沱江流域30个县市的经济发展阶段划分为4种类型:发达经济初级阶段、工业化高级阶段、工业化中级阶段、工业化初级阶段;利用流域2010年TM遥感影像图进行解译,在GIS技术支持下,获取研究区土地利用现状分布图,并分析各县市的各类产业用地的结构特征;在此基础上,采用地均产值(VA)指标分析各类产业的用地效益,采用产值占地比值比(OR)指标分析各个产业的产值与用地量之间的关联方式.结果表明,沱江流域总体处于工业化中级阶段,产业结构呈现"二三一"特征;各县市第二产业地均产值要远高于第三产业远高于第一产业;三次产业产值与用地之间关系并不协调.研究结果以期为流域产业结构优化调整和合理化土地资源提供一定的理论依据.

On the Relationship Between Industrial Structure and Land Use Structure in Tuojiang River Basin

Based on the industrialization stages theory by the American economist Hollis B. Chenery, the economic de- velopment stage of the 30 counties and prefectures within the valley of the Tuojiang River was divided into 4 types., primary stage of developed economy, advanced stage of industrialization, middle stage of industrialization, and primary stage of indus- trialization. By the support of GIS, the 2010 TM remote sensing image was adopted for interpretation of the land use status dis- tribution in the studying area and the structural characteristics of different types of land use in these districts and counties were analyzed. On basis of which, the land use efficiency of different industries by means of the VA index,and the correlation mode between the output value and the amount of land use among different industries was put under examination through the index of OR. The results showed that the overall situation in the Tuojiang River basin was at the middle stage of industrialization and the industrial structure is characteristic of a ＂231＂ feature; The output value for per area of the second industry was far higher than that of the third industry and the first industry; a disharmonic relation is found in between the output value and the amount of land use in the three industries. The findings can serve as the theoretical basis for industrial structure optimization adjustment and rational use of land resources in the region.