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研究生:林如珍
研究生(外文):Lin Ju-chan
論文名稱:以準碎形空間混合度指標探討都市土地使用形態的自我組織-整體空間發展受限模式之應用
論文名稱(外文):Exploration of self-organization in urban land use patterns based on semi-fractal spatial mixture indicators - Application of the diffusion limited aggregation model
指導教授:賴世剛賴世剛引用關係
指導教授(外文):Lai Shin-kung
學位類別:碩士
校院名稱:國立中興大學
系所名稱:都市計劃研究所
學門:建築及都市規劃學門
學類:都市規劃學類
論文種類:學術論文
論文出版年:1998
畢業學年度:86
語文別:中文
中文關鍵詞:自我組織逆冪次定律碎形結構自我組織臨界點
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最近幾年有些研究已將都市或聚落視為一自我組織的系統,自我組織現象所呈現之秩序是經由「由下而上」的規則演化所形成,且該系統也達到自我組織臨界性(Portugali, 1994)。本研究運用整體空間發展受限模式於土地使用混合度之空間結構,探討其空間分布是否存在碎形結構,並以符合逆冪次定律做為該空間分布是否具有自我組織現象。由於準碎形維度可反映土地使用活動的複雜程度,因而本研究以準碎形維度做為土地使用混合度的指標。另外,運用不同衡量單位及計算單元對於衡量土地使用混合度值是否有影響這方面之研究並不多見,是值得加以探討的問 而且本研究探討土地使用混合度空間分布的自我組織現象,有助於了解形成都市空間系統的演化規則。本研究主要發現:土地使用混合度之空間分布呈現碎形結構,不受都市規模、衡量單位、及計算單元的影響。這意味著土地使用混合度之空間分佈是為了要維持都市空間結構之臨界狀態而呈現逆冪次定律,而整個都市複雜系統則達到自我組織臨界點的狀況。 此現象可充分反映出都市整體土地開發使用是具有自發性,因為該系統是要維持空間結構之臨界狀態。因此,就規劃的角度來看,本研究成果可應用於解釋『開發許可制』之正當性,因為此制度是將開發權付予開發者,由開發者自發性的規劃開發,公部門只須運用其手段──開發案的審議(包括環境影響評估),過濾不適合之開發案,此一制度將有效提高土地開發的機制。由於宗地與宗地間會相互影響到其規劃開發的決策,藉由此連鎖反應,在看似混亂發展的都市中其實已存在自我組織的秩序(order);本研究成果就是在強調自發性的土地使用將會建構都市土地使用結構之秩 因此公部門不須就該地區之土地使用做過於詳細的規劃,因為規劃過度或規劃不足均會影響土地開發使用上的機制。
Some recent research tends to see cities or human settlements as self-organized systems. The order emerging from self-organized phenomena results from bottom up evolution rules leading toward self-organized criticality (Portugali, 1994). The research applies the Diffusion Limited Aggregation Model to the spatial structure of mixed land uses in order to investigate whether in its spatial distribution exist fractal structures. The standard for judging whether thespatial distribution fulfills self-organizion phenomena is based on the inverse power law. Because semi-fractal dimension can reflect the degree of complexity of land use activities, the research uses the semi-fractal dimension as anindicator for land use mixture. In addition, applying different measurement and computational units to estimating land use mixture degrees is useful andworth studying. The exploration into the self-organization phenomena of spatial distribution of land use mixtures is helpful in understanding how urban spatial systion phenomena is based on the inverse power law. Because semi-fractal dimension can reflect the degree of complexity of land use activities, the research uses the semi-fractal dimension as an indicator for land use mixture. In addition, applying different measurement and computational units to estimatingland use mixture degrees is useful and worth studying. The exploration into the self-organization phenomena of spatial distribution of land use mixtures ishelpful in understanding how urban spatial system evolution rules are formed. The main finding of the research is that the spatial distribution of land use mixtures results in fractal structures, regardless of urban scales, measurement units, and computation units. This implies that the spatial distribution ofland use mixtures is so constructed as to maintain the critical state of urbanspatial structure as measured by the inverse power law. The whole urban complex system evolves toward the self-organized criticality. This phenomenon implies that urban land development is self-motivated, becauseit maintains the urban spatial system in a critical state. Therefore, from the planning perspective, the research results can explain the accountability ofthe development permit system because it imposes development rights on developers who conduct planning and development individually, while the public sector screens the development projects against inappropriate ones through review procedures (e. g. environment impact assessment), to increase the efficiency ofland development mechanism. Because developments of parcels of land affect each other in making development decisions, through such a chain effect, the order of self-organization exists in the seemingly chaotic development of urban spatial system. The research results emphasize that the self motivated land uses lead toward the inner order of spatial structure. Therefore, the public sector should not over plan for urban land uses because either over planning or under planng would affect the mechanism of land development.
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