本文關(guān)鍵詞：廣州市花都區(qū)城鎮(zhèn)建設(shè)用地適宜性評價研究——基于MCR面特征提取　出處：《資源科學(xué)》2014年07期 　論文類型：期刊論文

  更多相關(guān)文章： 建設(shè)用地 適宜性評價 最小累積阻力模型 花都區(qū)

【摘要】：從降低城市化過程中因建設(shè)用地擴展所致生態(tài)不利影響出發(fā),本文以最小累積阻力(MCR)模型為基礎(chǔ),選取已有建設(shè)用地作為擴展源,構(gòu)建地形、地質(zhì)、生態(tài)脆弱性和可達性四個阻力因子體系。在生成的MCR面上,劃分建設(shè)用地適宜性分區(qū),并利用Hydrology擴展模塊提取建設(shè)用地適宜擴展路徑、生態(tài)隔離帶和生態(tài)關(guān)鍵點,為城鎮(zhèn)生態(tài)建設(shè)規(guī)劃和景觀格局優(yōu)化提供決策支持。主要結(jié)果包括:應(yīng)用本文方法分析建設(shè)用地適宜性評價的面、線、點綜合特征,比僅進行擴展面評價分析的常規(guī)方法更為全面,且更具可操作性;劃分出建設(shè)用地適宜擴展區(qū)、較適宜擴展區(qū)、限制擴展區(qū)、禁止擴展區(qū)和生態(tài)恢復(fù)區(qū),并提出相應(yīng)的管理措施;建設(shè)用地在適宜擴展區(qū)和較適宜擴展區(qū)內(nèi),由擴展路徑引導(dǎo)優(yōu)化開發(fā),可避免盲目地"攤大餅式"蔓延;生態(tài)隔離帶打破現(xiàn)有建設(shè)區(qū)"連片"擴展格局;生態(tài)關(guān)鍵點和高值點的識別,有利于研究區(qū)生態(tài)環(huán)境保育。
[Abstract]:In order to reduce the ecological adverse impact caused by the expansion of construction land in the process of urbanization, based on the minimum cumulative resistance (MCR) model, this paper selects the existing construction land as the expansion source to construct topography and geology. Ecological vulnerability and accessibility of the four resistance factor systems. On the generated MCR surface, divided into construction land suitability zoning, and use the Hydrology expansion module to extract the appropriate path of construction land expansion. The ecological separation zone and ecological key points provide decision support for urban ecological construction planning and landscape pattern optimization. The main results include: using the method of this paper to analyze the comprehensive characteristics of land suitability evaluation. It is more comprehensive and more operable than the conventional method which only carries out the evaluation and analysis of the extended surface. The suitable expansion area of construction land, the more suitable expansion area, the restricted expansion area, the forbidden expansion area and the ecological restoration area are divided, and the corresponding management measures are put forward. In the suitable expansion area and the more suitable expansion area, the optimal development of the construction land can be guided by the expansion path, which can avoid the spread of "spreading the pie" blindly; The ecological separation zone breaks the existing construction area "continuous slice" expansion pattern; The identification of ecological key points and high-value points is beneficial to the conservation of ecological environment in the study area.
【作者單位】： 廣州大學(xué)地理科學(xué)學(xué)院;
【基金】：國家自然科學(xué)基金面上項目:“城鄉(xiāng)一體化土地利用優(yōu)化配置的CA模型研究”(編號:41171070)
【分類號】：P901;F299.23;P208
【正文快照】： 1引言城市化進程的不斷加快,使得區(qū)域資源被高強度的人類活動無節(jié)制地消耗,不合理開發(fā)土地資源現(xiàn)象頻頻發(fā)生�；ǘ甲詺w于廣州市管轄范圍以來,經(jīng)濟實現(xiàn)快速增長,尤其是白云國際機場的啟用,帶動了第二、三產(chǎn)業(yè)蓬勃發(fā)展。城鎮(zhèn)建設(shè)用地肆意侵占農(nóng)用地,甚至逐漸向東北部生態(tài)自然保

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本文編號：1372903