| The spatial structure of the organization of the urban system is composed of six parts of the node, channel, stream, matrix, hierarchy and network. Node and channel is the formation of the material elements of the spatial structure of the skeleton, flow, level, domain surface and the network is the formation of the functional elements of the spatial attributes. Urban system in the region can be seen as different levels of cities and towns, through a variety of channels, so that the material exchange between different cities, to form a more complex urban network system.The article is mainly based on the six elements, using principal component analysis, fractal analysis, factor analysis and other analytical methods, as well as urban flow strength model, the breaking point model, transport integrated accessibility model, systematic analysis of the Poyang Lake Ecological Economic Zone urban system spatial organization. Studies have shown that the conditions for the development of Poyang Lake Ecological Economic Zone, the growth pole of the role began to emerge, but compared with the surrounding provinces is still in the "valleys" of the economy; too high urban primacy, urban population size structure is irrational, the large proportion of small cities intermediate cities fault, but the land size of the structure is relatively reasonable. Radiation range of the city is small, the relative dispersion of urban distribution; town comprehensive accessibility and economic development level is obvious what difference exists; as the core of Nanchang City flow intensity, the level of differentiation, polarization of the development trend, the city’s economic strength is affecting urban stream the intensity of the main factors; urban spatial distribution concentrated on the lines of communication, transportation network connectivity is better, but there are optimal trend; towns basically formed a nuclear, twice, three axis, four with five heart "of urban space network distribution pattern. |
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