哈爾濱市主城區(qū)不透水面格局變化特征分析
[Abstract]:The information of impermeable surface is a very important evaluation factor in urban geography. It plays an important role in urban land expansion, urban ecological environment effect and so on, and can also be widely used in residential population assessment. The estimation and prediction of urban non-point source pollution load can also provide the main data support when analyzing the combination of urban sustainable development and urban development. Harbin is the provincial capital of Heilongjiang Province, and is an important industrial center, scientific research center and commercial and trade center in Heilongjiang Province. The research area of this paper is six complete administrative districts under the jurisdiction of the central city of Harbin, which are respectively Dori District. Daowai District, Nangang District, Xiangfang District, Cottage District, Songbei District. With the development of society and the improvement of economic level, the speed of urban expansion is getting faster and faster, and this change is obviously reflected in the opaque information. The information of impermeable surface in the region is extracted by using the linear spectral mixed decomposition model and WuMurry's four-terminal element model. The time scales are 1995, 2000, 2005 and 2010, and the time scales are 1995, 2000, 2005 and 2010. In order to monitor the dynamic changes of urban land use in Harbin city, the characteristics of pattern change and urban expansion and driving force of impermeable water surface are analyzed by using the results of extraction, so as to monitor the dynamic changes of urban land use in Harbin. Also for macro-control and related policies and regulations to provide the corresponding data support. In this paper, the information of impermeable surface in six districts of Harbin is extracted from Landsat TM image data of 1995, 2000, 2005 and 2010 by using the linear spectral mixed decomposition model combined with WuMurry's four-terminal element model. The results showed that the RMSE was 0.2638 and MAE was 0.2079. It can be concluded that the combination of linear spectral mixed decomposition model and WuMurry's four-terminal model can extract the information of impermeable surface in the study area. Using the extraction results to analyze the changes of impermeable surface in six administrative districts (Dori District, Daowai District, Nangang District, Xiangfang District, Cottage District, Songbei District) under the central urban area of Harbin. According to the analysis, the impervious surface area of Harbin has increased from 1995 93.68km2 to 201.35km2 in 2010. The overall increase range is larger, but the area in 1995 is 93.68 km2, and the area in 2005 is 134.04 km2. The change range is small, so the main change of impermeable surface distribution is after 2005. By studying the types of urban expansion in the study area, The urban expansion mode of this research area is mainly "spread the big cake" and "the satellite city" two kinds of development pattern. The expansion speed of 1995-2005 belongs to the medium speed expansion type 2005-2010 expansion speed is the high speed expansion type, which indicates that Harbin has entered the period of high speed development; On the other hand, by using fitting degree analysis and correlation analysis, we can know that the main driving factors of Harbin urban expansion are economic factors and social factors. The economic factor is the main driving force, the social factor is the secondary driving force, and the population factor is the indirect driving force.
【學(xué)位授予單位】:哈爾濱師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TU984;P237
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