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Abstract
The primary principle of urban land use we ought to consider is to employ the lands in the most efficient ways. Due to characteristics of land, each of them varies according to its conditions and it will result in the differences of superior and inferior lands. The decision-making of the time being of urban land development and also land use types are the main factors and they also cause different urban land use change phenomenon and its development problems. When the land are employed improperly, used with lower efficiency or become empty and useless ones, they will intervene the urban city from developing normally, increase more demands of urban land, and load on the burdens of building up more public facilities.
This research is based on the construction of urban land use change model to well realize the influential extents of urban land development in environmental variable so that we are able to predict the future tendency of urban land use. The research generalizes indicative factors from retrospecting relevant references and sets up “ Evaluated indicative system of urban land use” applied by FUZZY DELPHI. Meanwhile, according to expert’s perspectives and the current situation of land use experimental area (11th stage consolidation in Taichung County), the independent variables and their definitions are adjusted and the following information proceeds to be collected. In addition to the collection of general information, due to temporary characteristics of location information, the research relies on the functional factors of both GPS and GIS systems to collect and pick up all necessary information, and the analysis outcome will be more precise and accurate.
After pre-processing the collected data, Multivariate Data Analysis is applied to set up urban land use changed model. Afterwards, make the comparisons between this model and “Evaluated indicative system of urban land use” analyzed from experts’ surveys. We then further understand the relationship between the change of land use area and independent variables. The research outcome is inducted as below:
n There is relationship between urban land use change, and the factors of location and socio-economics. Speaking of residence, residence land use change is influenced by “the factor of location”, but not obviously affected by “the factor of socio-economics” and “the land use ratio of residence block development” is in priority for its influential extent. Regarding commerce, commercial land use change is influenced by both factors of “location” and “socio-economics”. From the perspective of standard regression, if every detailed factor positively or negatively affected commercial land use change is not considered, then the influence of “ socio-economics” is more excessive than that of “ location”, especially, the “ purchase ability” has the greatest influence. As for public facilities, they are affected by “the factor of socio-economics”, but not clearly influenced by” the factor of location”, and “GNP” is the most significant factor.
n With the construction of urban land use change model applied on the research, we can acknowledge that there is relevant rule between the demand types of urban land use and environmental factors. Once we are well aware of the rule and transfer the data into numbers, we are able to depict the cause-effect tendency of urban land use development in process.
n We can observe from the seasonal land use change area and case numbers that the land use change of the research experimental area in the 11th consolidation has obvious land use change from the 7th season. Concerning time and space factors toward the change place, the western part of consolidation has earlier change than that of eastern part as well as east-northern part changing earlier than east-southern parts, but the change of west-northern parts are latter than west-southern parts. Meanwhile, the land use change of the 11th consolidation commences along with the main avenue ”Tzoun-de Rd.,” and sub-avenue “Shang-Tzu Rd.”
n The residenctial land use change and commercial land use change are influenced by “location”. If we merely observe the distribution of land use change in consolidation, it is hard for us to absolutely prospect the trend of its land use change. Nevertheless, through the construction of “urban land use change model” within the research, we are able to get familiar with the tendency and depict it concretely.
n We are able to figure out from the experimental outcome of urban land use change model that “the ratio of every kind of land use service area” is to be considered crossed influence with its land and peripheral lands. Besides, the research applies “the service area ratio of the road area” to evaluate the effectiveness of the location of commercial land use, and it is better evaluated by “ distance”.
Throughout the research, the hypothesis and the research purpose we reached can prove that the factors of location and socio-economics have intensive influence over the development change of urban land use, and both cause-effect relationships can be described through mathematic mode. Consequently, the result of the research can be offered to the planning units to take into consideration whenever the urban land use is plotted. When the key omen of urban land use change is well manipulated, we shall capture the most valuable time and precious opportunities for the development.
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