本文選題：地理國情普查 + GIS　； 參考：《東華理工大學》2015年碩士論文

【摘要】：社會在不斷的發(fā)展,工業(yè)文明給人類帶來的不只是便利,還有對自然環(huán)境的破壞,伴隨著環(huán)境的不斷惡化,地質災害發(fā)生的次數也在不斷增加,影響著人民的生活和社會的發(fā)展。江西省是一個地質災害頻發(fā)的省份,多年來不斷的對地質災害進行研究,期間也取得了許多成果,但隨著時代的發(fā)展,對地質災害的認識也應不斷的加深。我國多年以來一直保持著經濟快速發(fā)展的態(tài)勢,同時國情信息也在不斷的變化,為全面掌握地理國情信息,國家于2012年開始開展地理國情普查工作。本文以鷹潭市地質災害點為研究對象,基于地理國情普查數據,分析地質災害點的空間分布特征,并基于分析的數據對地質災害點危險性進行評價。本文主要完成的工作有(1)結合專業(yè)部門數據,通過實地排查和影像解譯數據確定鷹潭市地質災害點的分布情況,制作地質災害點分布矢量圖;(2)基于DEM和普查等數據,提取相應專題要素;(3)基于GIS空間分析理論,將地理國情普查數據與地質災害點數據結合,詳細分析地表覆蓋、重要地理國情要素和地質災害點的空間分布關系;(4)基于鷹潭市各類醫(yī)院的普查數據,根據不同的救援要求研究最短救援路徑;(5)選取對地質災害爆發(fā)影響明顯的因素與被地質災害點危害的社會經濟因素作為評價因子,采用層次分析法建立模型并計算各評價因子的權重,最后利用GIS空間分析技術制作研究區(qū)域地質災害危險性評價分級圖。本文得出的地質災害危險性評價結果與地質災害點密度分布情況相吻合,評價結果基本反映了研究區(qū)域地質災害點的空間分布規(guī)律,符合區(qū)域評價的精度,也符合實際情況,說明本文采用的評價體系和評價因子是可靠的。另外,本文在研究結果的基礎上,也對地質災害的防災減災工作提出一些建議。
[Abstract]:With the continuous development of society, industrial civilization has not only brought convenience to human beings, but also destroyed the natural environment. With the continuous deterioration of the environment, the number of geological disasters has also been increasing. It affects the life of the people and the development of society. Jiangxi Province is a province with frequent geological disasters. During the years, many achievements have been made in the study of geological disasters, but with the development of the times, the understanding of geological disasters should be deepened. Our country has been keeping the situation of rapid economic development for many years, at the same time, the information of national conditions is also changing constantly. In order to master the information of geographical conditions, the country began to carry out the general survey of geographical conditions in 2012. In this paper, the geological hazard points in Yingtan City are studied. Based on the general survey data of geographical conditions, the spatial distribution characteristics of geological hazard points are analyzed, and the hazards of geological hazard points are evaluated based on the analyzed data. The main work accomplished in this paper is: (1) based on the data of professional departments, the distribution of geological hazard points in Yingtan city is determined by field investigation and image interpretation data, and the vector map of distribution of geological hazard points is made based on DEM and general survey data. Based on the theory of GIS spatial analysis, combining the data of the survey of geographical national conditions with the data of geological hazard points, the surface cover is analyzed in detail. Based on the survey data of various hospitals in Yingtan City, According to different rescue requirements, the shortest rescue path is studied. (5) the factors that have obvious influence on the geological disaster outbreak and the social and economic factors that are damaged by the geological disaster point are selected as the evaluation factors. The analytic hierarchy process (AHP) is used to establish the model and calculate the weight of each evaluation factor. Finally, the classification map of regional geological hazard risk assessment is made by using GIS spatial analysis technology. The results obtained in this paper are consistent with the density distribution of geological hazard points. The evaluation results basically reflect the spatial distribution law of regional geological hazard points, and accord with the accuracy of regional evaluation and the actual situation. It shows that the evaluation system and evaluation factors used in this paper are reliable. In addition, on the basis of the research results, this paper also puts forward some suggestions for the prevention and mitigation of geological disasters.
【學位授予單位】：東華理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P694

【參考文獻】

相關期刊論文 前1條

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本文編號：1960560