【摘要】：在我國城鎮(zhèn)化快速推進過程中,村鎮(zhèn)發(fā)展的經濟效益成為了關注焦點,社會效益和生態(tài)環(huán)境效益逐漸被淡視。伴隨而來的是社會和生態(tài)環(huán)境問題突顯。就環(huán)境方面來說,環(huán)境惡化、資源枯竭、大氣污染、水污染和垃圾圍城等等現(xiàn)象普遍存在,生態(tài)環(huán)境惡化趨勢日趨嚴重,生態(tài)環(huán)境整體功能下降,生態(tài)安全格局水平較低,山地村鎮(zhèn)抵御自然災害能力逐漸減弱,嚴重影響了山地村鎮(zhèn)的可持續(xù)發(fā)展。由于山地村鎮(zhèn)規(guī)劃建設中不同的山地村鎮(zhèn)具有不同的生態(tài)環(huán)境條件,其生態(tài)安全格局呈現(xiàn)不同的狀態(tài)水平,不同狀態(tài)水平的生態(tài)安全格局對山地村鎮(zhèn)災害形成、發(fā)生和發(fā)展有著重要影響作用,一旦突破低水平生態(tài)安全格局的底線,相應山地村鎮(zhèn)災害發(fā)生的幾率將會大大增加。山地村鎮(zhèn)大多由于建設條件復雜,可適用建設用地較少,其用于生態(tài)綠地的用地的就更少,導致整體村鎮(zhèn)生態(tài)安全格局水平較低。所以,研究低水平安全格局下的山地村鎮(zhèn)防災減災問題,對于山地村鎮(zhèn)的安全可持續(xù)發(fā)展具有重要意義。論文針對我國山地村鎮(zhèn)普遍存在生態(tài)安全格局水平不高、安全問題突出的現(xiàn)實,從災害形成與生態(tài)環(huán)境的關系入手,界定了低水平生態(tài)安全格局的概念,建立其西南地區(qū)山地村鎮(zhèn)低水平生態(tài)安全格局的評價體系。通過對西南山地村鎮(zhèn)的考察,發(fā)現(xiàn)了山地村鎮(zhèn)在低水平生態(tài)安全格局下所呈現(xiàn)的基礎特征規(guī)律,揭示了山地村鎮(zhèn)呈現(xiàn)這種特征規(guī)律的機制,以此為基礎分析了山地村鎮(zhèn)災害與低水平生態(tài)安全格局之間的內在聯(lián)系,并提出了山地村鎮(zhèn)在低水平生態(tài)安全格局下的防災減災對策方法。
[Abstract]:In the process of rapid development of urbanization in China, the economic benefits of the development of villages and towns have become the focus of attention, social benefits and ecological environmental benefits have gradually been neglected. Accompanied by social and ecological environmental problems highlighted. As far as the environment is concerned, environmental deterioration, depletion of resources, air pollution, water pollution and garbage siege are common phenomena. The deterioration trend of ecological environment is becoming more and more serious, the overall function of ecological environment is declining, and the level of ecological security pattern is low. The ability of mountain villages to resist natural disasters gradually weakened, which seriously affected the sustainable development of mountain villages and towns. Because different mountain villages and towns have different ecological environmental conditions in the planning and construction of mountain villages and towns, their ecological security patterns present different state levels. Occurrence and development play an important role. Once breaking through the bottom line of low level ecological security pattern, the probability of corresponding mountain villages and towns disaster will increase greatly. Because of the complex construction conditions, most of mountain villages and towns can be used for less construction land, even less for ecological green land, resulting in the overall level of ecological security of villages and towns is low. Therefore, it is of great significance for the sustainable development of mountain villages to study the disaster prevention and mitigation of mountain villages and towns under the situation of low level security. In view of the fact that the level of ecological security pattern is not high and the security problem is prominent in mountainous villages and towns in our country, this paper begins with the relationship between disaster formation and ecological environment, and defines the concept of low level ecological security pattern. To establish the evaluation system of low level ecological security pattern in mountainous villages and towns in Southwest China. Based on the investigation of mountainous villages and towns in southwest China, the basic characteristics of mountain villages and towns under the low level ecological security pattern are found, and the mechanism of mountain villages and towns presenting this characteristic rule is revealed. Based on this, this paper analyzes the internal relationship between the disaster in mountain villages and towns and the pattern of low level ecological security, and puts forward the countermeasures for disaster prevention and mitigation of mountain villages and towns under the pattern of low level ecological security.
【學位授予單位】：重慶大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TU982.29;X171

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