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The Space-time Simulation Of Land Use Evolution In Daqing City Center

Posted on:2011-07-28Degree:MasterType:Thesis
Country:ChinaCandidate:B L LiuFull Text:PDF
GTID:2132360308482194Subject:Agricultural Remote Sensing and Land Use
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The land use of Daqing city center is a natural, social, and economic interaction between the compound and the open complex giant system with discrete, non-equilibrium, multi-scale nature, hierarchy, such as uncertainty and complexity of interaction feature. In this study, the research object of Daqing city center, Starting from the micro-level within the system, An evolutionary perspective to understand the complex systems of land-use evolution of Daqing city center. Mainly based on《land use in Master Plan (2006-2020)》, combined with CA, MAS and secondary development of GIS technology, according to the system dynamics, the limit theory of economic resources, sustainable development theory, strategy for city development theory , construct land use evolution simulation model of Daqing city center.The model contain environmental factors layer, MAS decision-making layer and the CA simulation layer. Environmental factor layers are composed by transport element, economic trends element and energy-land elements, which is decision-making unit or the environment of evaluation units. MAS element layer including the government agent, oil agent, and residents agent, the three agents mutual consultation and decision-making. The government Agent show planning act. Oil Agent show negotiation behavior. Residents Agent show choice behavior. The Agent according to oneself on the basis of CA simulation calculate the probability of layer and negotiate with other Agent decision-making chosen plot t + 1 time of land utilization form.CA emulation layer including cellular state,CA neighborhood and cellular transformation rules, which used for the evaluation of the candidate block and land type conversion. Three layer interaction , mutual consultation and common understand their environment. Using ArcGIS secondary development, design and build space-time evolution simulation platform, and then under the current land use in Daqing city center, reverse simulate land use situations in 2000. By comparing the simulation results of the 2000 downtown land-use data analysis to test model accuracy.Use of space-time evolution simulation platform, Relying on the traffic attenuation coefficient of controllable parameter, 20 etc,designed four situation of non-intervention, energy-land, urban transformation strategies and the theory of sustainable development , 2005 as the base, set the near term (5 years, until 2010), medium (15 years, until 2020), long-term(45 years, until 2050) the three time dimensions. Simulation in time and space evolution of land use in Daqing city center. Through a variety of contexts, compared and analyzed the simulation results in different time scales obtain salient features of land use in Daqing city center. Main features include: the decrease is an inevitable trend, but should control the speed and capacity, reduce the quantity of cultivated land occupied land, urban construction is the root cause of the cultivated land change, Garden in daqing, but the proportion of urban sustainable development center has an important role, Attention, but the leading construction land. Meanwhile, the local land development to a certain scale, improve environment, economic value added to the land around, Under the conditions of natural grassland degradation of daqing rapidly, but the government departments have governance capability, and insert the land reclamation and utilization, and urban greening can increase of grass, grass complement, Wetland has recently reduced size limit, rapid, Presents recent construction land shall meet, long-term, Production scale can be controlled, but for the construction of a productivity to change other purposes; after Daqing city center unused land is not suitable for urban construction.Then according to their characteristics, reasonable use land resources as the goal in time and space, proposed land use recommendations, to avoid the waste of land resources in Daqing City center. Mainly include: reduce speed control land scale, prevent farmland abandoned, desertification, etc, Increasing woodland and grassland construction and gardens, wetland protection forest can have the effect of sand-fixation and beautify urban landscape. Garden, grassland, wetland ecological environment plays an important role, but according to the evolution of 2050 to choose suitable locale related field, grassland area and high wetland nature reserve and zoning regulation, Actively exploited, saving and composite intensive land utilization. Among them, the land use oil compound bio-energy can choose oil production plant virescence and renewable energy, To strengthen the general land use planning of macro-control role. And the land will be placed before planning, execution behavior of land utilization of land scientific realization by intensive, saving, To strengthen the development of land reclamation. Due to the unique daqing geological structure and landscape pattern of land reclamation arrangement to develop high cost, but the daqing should rely on its economic strength of locational advantage of plot development reclamation. For urban construction, alleviate the shortage of newly-increased construction land.Finally, according to recommendations design model parameters to simulate the ideal situation in different time scales under the land use, intuitive display a scientific and rational land use development in Daqing city center. According to the experimental results, we can see that farmland will be reduced, forest land be limited , grassland rapidly degradation under natural conditions, the size of wetlands have limition, construction land shows control in the recent and non-met in long-term, energy-land can be controlled but is difficult to change to other uses after construction, unused land is not suitable for urban construction, etc. And proposed that control the reduce speed of arable land; Setting the core protection of land resources in forest, garden, grass, wet areas, strictly control the energy-land and construction land development. According to the above characteristics and recommendations to provide a meaningful basis for land use in Daqing city center.
Keywords/Search Tags:CA, MAS, land use evolution, space-time simulation, Daqing city center
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