Abstract

This paper analyzes the urban-rural land-use change of Chongqing and its policydimensional driving forces from 1995 to 2006, using high-resolution Landsat TM(Thematic Mapper) data of 1995, 2000 and 2006, and socio-economic data from bothresearch institutes and government departments. The outcomes indicated that urban-ruralland-use change in Chongqing can be characterized by two major trends: First, thenon-agricultural land increased substantially from 1995 to 2006, thus causing agriculturalland especially farmland to decrease continuously. Second, the aggregation index of urbansettlements and rural settlements shows that local urban-rural development experienced aprocess of changing from aggregation (1995-2000) to decentralization (2000-2006).Chongqing is a special area getting immersed in many important policies, which includethe establishment of the municipality directly under the Central Government, the buildingof Three Gorges Dam Project, the Western China Development Program and theGrain-for-Green Programme, and bring about tremendous influences on its land-usechange. By analyzing Chongqing's land-use change and its policy driving forces, someimplications for its new policy of 'Urban-rural Integrated Reform' are obtained. That ismore attentions need to be paid to curbing excessive and idle rural housing andconsolidating rural construction land, and to laying out a scientific land-use plan for its rural areas taking such rural land-use issues as farmland occupation and rural housing landmanagement into accounts, so as to coordinate and balance the urban-rural development.

Highlights

  • Both remote sensing (RS) and geographic information systems (GIS) have covered wide range of applications in the fields of agriculture and environments, such as estimation of crop evapotranspiration [1], crop yield forecasting [2], analysis of thermal energy fluxes in urban areas [3,4], integrated eco-environment assessment [5], etc

  • The aggregation index of urban settlements and rural settlements shows that local urban-rural development experienced a process of changing from aggregation to decentralization, which can be proved by the change of average area of patches of urban settlements and rural settlements, increasing from 238.4 ha and 14.6 ha in 1995 to 352.9 ha and 16.2 ha in 2000 shrunking to 114.9 ha and 13.9 ha in 2006, respectively

  • Land-use changes, while restricted by physical conditions, are mainly driven by socio-economic factors. They can be mainly characterized by the changes of cultivated land and construction land, which are tightly inter-related with human production activities

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Summary

Introduction

Both remote sensing (RS) and geographic information systems (GIS) have covered wide range of applications in the fields of agriculture and environments, such as estimation of crop evapotranspiration [1], crop yield forecasting [2], analysis of thermal energy fluxes in urban areas [3,4], integrated eco-environment assessment [5], etc. There are widely used approaches of change detection and statistical analysis, which enable us to discover the structural variation among different land-cover patterns and to diagnose land-use change based on time series socio-economic data [19,20,21,22,23,24,25]. These time series analyses of land-use change and the identification of its driving forces can provide decision-makers with important information for the sustainable management of land resources and regional development [26,27,28]

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