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中原經(jīng)濟(jì)區(qū)縣際經(jīng)濟(jì)聯(lián)系網(wǎng)絡(luò)結(jié)構(gòu)及其演化特征

發(fā)布時間:2018-04-27 08:26

  本文選題:經(jīng)濟(jì)聯(lián)系網(wǎng)絡(luò) + 空間格局; 參考:《地理研究》2014年07期


【摘要】:以中原經(jīng)濟(jì)區(qū)縣級行政單元為網(wǎng)絡(luò)節(jié)點,利用重力模型分別測算1996年、2010年226個節(jié)點間的經(jīng)濟(jì)聯(lián)系強(qiáng)度。首先設(shè)定同一閾值篩選有效連接,分析網(wǎng)絡(luò)連通能力變化;再設(shè)定不同閾值,分析網(wǎng)絡(luò)結(jié)構(gòu)及其演化特征。研究發(fā)現(xiàn):①中原經(jīng)濟(jì)區(qū)經(jīng)濟(jì)網(wǎng)絡(luò)連通能力有大幅度提高,經(jīng)濟(jì)發(fā)展和交通改善是網(wǎng)絡(luò)稠密化和便捷化的主要原因。②節(jié)點連通能力差異很大,少數(shù)節(jié)點掌握著絕對的網(wǎng)絡(luò)權(quán)力,鄭州市等5個核心節(jié)點的地位尤其突出,其連線呈橫向"T"字形狀,建設(shè)"十"字形發(fā)展軸需要提升東部節(jié)點的連通能力。③網(wǎng)絡(luò)呈明顯的核心—外圍結(jié)構(gòu)并有極化趨勢,核心區(qū)影響力和輻射力進(jìn)一步增強(qiáng),中原經(jīng)濟(jì)區(qū)只有提高邊緣"洼地"節(jié)點連通能力才能加強(qiáng)與毗鄰區(qū)的融合發(fā)展。④網(wǎng)絡(luò)節(jié)點集聚現(xiàn)象明顯,圍繞次級核心節(jié)點形成了多個軸—輻結(jié)構(gòu)子網(wǎng)絡(luò),"十"字形發(fā)展軸和"米"字形發(fā)展帶的構(gòu)建與發(fā)展,將有利于形成多重軸—輻結(jié)構(gòu)嵌套的經(jīng)濟(jì)聯(lián)系網(wǎng)絡(luò)。⑤鄭州市等高度值節(jié)點因較強(qiáng)的連通能力成為網(wǎng)絡(luò)中的中介節(jié)點,一些度值不高的節(jié)點因處于"結(jié)構(gòu)洞"位置上也具有較強(qiáng)的中介作用,在提高中介節(jié)點連通能力的同時,需要改善低度值中介節(jié)點所在小區(qū)域的經(jīng)濟(jì)和交通狀況。
[Abstract]:Taking the administrative unit at county level in the Central Plains Economic Zone as the network node, the economic connection intensity between 226 nodes in 1996 and 2010 was calculated by gravity model. First, the same threshold is set to filter the effective connection, and the network connectivity ability is analyzed, then the network structure and its evolution characteristics are analyzed by setting different thresholds. It is found that the connectivity of economic network in the Central Plains Economic Zone has been greatly improved, and the economic development and traffic improvement are the main reasons for the network denseness and convenience. A few nodes hold absolute network power, and the status of the five core nodes, such as Zhengzhou City, is particularly prominent, with the line taking the shape of a horizontal "T" word. To build the "ten" zigzag development axis, we need to enhance the connectivity of the eastern nodes. The connectivity of the 3. 3 network shows an obvious core-peripheral structure and a trend of polarization. The influence of the core region and the radiation force are further enhanced. In the Central Plains Economic Zone, only by improving the connectivity ability of the edge "depression" nodes can the convergence and development of the adjacent areas be strengthened, and the phenomenon of node agglomeration in the network is obvious. Around the secondary core nodes, there are several sub-networks of axis-spoke structure, the construction and development of the "ten" zigzag development axis and the "meter" zigzag development belt. It will be advantageous to form the economic connection network with multiple axis-spoke structure. 5. Zhengzhou and other high value nodes will become the intermediary nodes in the network because of their strong connectivity ability. Some nodes with low degree also play a strong intermediary role in the position of "structural hole", so it is necessary to improve the economic and traffic situation of the low grade nodes in the small area while improving the connectivity of the intermediary nodes.
【作者單位】: 河南大學(xué)黃河文明與可持續(xù)發(fā)展研究中心暨黃河文明傳承與現(xiàn)代文明建設(shè)河南省協(xié)同創(chuàng)新中心;河南大學(xué)環(huán)境與規(guī)劃學(xué)院;
【基金】:國家自然科學(xué)基金項目(41329001,41001359)
【分類號】:F127

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