In order to perform an analysis of Green Infrastructure evaluation within GIS, research challenges and stages that need to be tackled are:
1) Construction and mapping of land-use series of the Makassar region using geospatial information available at regional scale analysis, and simulation of land-use changes to examine the detail of urban transition phenomena during 15 years;
2) Development model of ecological connectivity evaluation by conducting the spatial analysis of ecological functional areas, evaluation of ecological barrier index analysis, and evaluation of ecological connectivity index analysis at Makassar region;
3) Development model of flood disaster risk evaluation by performing the spatial analysis of flood hazard index, evaluation of vulnerability to floods, and evaluation of flood risk index analysis at Makassar region; and
4) Establishment of a proposal of Green Infrastructure planning of Tallo River Area by considering the spatial multiple functional analysis of the Green Infrastructure components and by taking into consideration their connectivity.
In this research, the thesis consists of six chapters that are briefly described as follows.
Chapter one (1) provides a brief introduction to the description of the sustainable urban development involving the sustainable and site design, site data and analysis concepts. By the literature reviews, definitions of Green Infrastructure by the Country regions such as United States, European Countries and Japan have been described in this chapter. As a research background, development of urbanization and land-use planning issues in the Makassar region have been presented to point out the major issues that need to be studied. An introduction of GIS for the utilizing geospatial information, data analysis and methodology has been given to illustrate the capability of GIS for Green
Infrastructure evaluation study. The major challenges for spatial analysis of Green Infrastructures are also described. Overall overview of the research design and stages is presented in the end of Chapter 1.
Chapter two (2) describes the development methodology of land-use mapping using GIS and the grid mesh system. The roles of GIS for utilizing available geospatial information at regional scales for constructing the land-use map series are presented. An analysis of the land-use changes during 15 years in the Makassar region has been done. Detail analysis of spatial and temporal urban transition simulation is presented. Furthermore, analyses of the land-use value changes into other values have been discussed in this chapter. By the evaluation study of the land-use changes, degradation of land-use areas have been identified clearly and further research stage of ecological connectivity evaluation can be developed and discussed in next chapter.
Chapter three (3) presents the methodology of the evaluation of ecological connectivity using GIS modeling approach and development of spatial model of ecological connectivity index. Identification of ecological functional areas for different spectrum sizes has been analyzed and the ecological functional areas of Makassar region have been developed. Barrier effect index modeling has been conducted by GIS model. Analyses of barrier effect index changes have been discussed in this chapter. Establishment of resultant maps for ecological connectivity index is performed. Analyses of ecological connectivity index changes during 15 years in Makassar region have been conducted. Furthermore, a differentiation analysis of ecological connectivity index due to urban transition of Makassar City is presented to describe the effect of urban expansion to the negative changes in connectivity.
Chapter four (4) focuses on the evaluation of flood disaster risk of Makassar region. The available statistical data, geospatial information and flood hazard map for evaluation of flood hazard, vulnerability to flood and flood risk is discussed. A flood research scenario by the recent flood hazard information provided by the local government is also discussed. An evaluation of vulnerability to flood at local context involved the indicator composition of the social, economic, physical, and environmental components is performed. Establishment of flood vulnerability component maps has been conducted in this chapter. Flood assessment risk map has been established and analysis of flood risk index at local scale has been discussed to describe the flood risk and potential impact level at sub-districts.
Chapter five (5) deals with the zoning analysis at Tallo River Area for the evaluation of Green Infrastructure planning. The existing situation, detailed development component plan by local government is described in this chapter.
Identification of key issues for Green Infrastructure plan has been performed to point out the Green Infrastructure opportunities assessment. Development of Green Infrastructure components and network analysis has been conducted in this chapter. The proposal of Green Infrastructure network planning is discussed and the comparative study with the Tallo project planned by the local government is also presented.
Chapter six (6) gives an overall discussion and conclusions of my current study. Furthermore to continue address the remained research issues, a future approach are discussed.
By the literature reviews, definitions of Green Infrastructure by the Country regions have been discussed. Connectivity is a key element of Green Infrastructure plans, not only within elements of the Green Infrastructure plan itself, but the plan should also create connections between local institutions and people. The goal of a network design is to delineate an interconnected Green Infrastructure system that incorporates both benefits to nature and to people.
2.1Development of Land-Use Maps