本文選題：綠量 + 樞紐��； 參考：《華中農(nóng)業(yè)大學(xué)》2013年碩士論文

【摘要】：隨著社會的發(fā)展,城市化進(jìn)程的加快,環(huán)境問題日益突出,人們越來越重視生態(tài)安全問題,綠色基礎(chǔ)設(shè)施規(guī)劃作為一種精明增長和精明保護(hù)的途徑被提出,它能夠?qū)ξ覀兊囊?guī)劃、景觀以及環(huán)境的保護(hù)提供更加科學(xué)的可持續(xù)的發(fā)展方法。大型的山體斑塊是武漢市城市綠色基礎(chǔ)設(shè)施中的綠色源泉,是綠色基礎(chǔ)設(shè)施中重要的樞紐,也是城市生態(tài)安全的重要保障。三維綠量同二維綠量相比,其能夠更加合理的反應(yīng)山體綠量的生態(tài)效益。因此,以三維綠量為切入點研究武漢市山體樞紐的綠量,對更好的發(fā)揮山體在武漢市生態(tài)安全的保障作用具有重要意義。本研究以三維綠量為切入點,構(gòu)建評價體系篩選出能夠作為武漢市綠色基礎(chǔ)設(shè)施樞紐的山體,并根據(jù)山體位置劃分不同研究區(qū)域。通過構(gòu)建植被指數(shù)(Ⅵ)和實測葉面積指數(shù)(LAI)之間的回歸模型,反演出研究區(qū)的葉面積指數(shù),研究分析樞紐區(qū)域、樞紐內(nèi)山體及樞紐緩沖區(qū)的綠量特征,得到以下研究結(jié)果：(1)基于TM5影像提取的各植被指數(shù)(Ⅵ)和葉面積指數(shù)(LAI)相關(guān)性排序為：RVINDVIMSAVIGNDVIDVI PVI,相關(guān)性都達(dá)到0.6以上。(2)基于TM5影像各植被指數(shù)(Ⅵ)和葉面積指數(shù)(LAI)反演研究,得出最佳回歸模型為比值植被指數(shù)(RVI)的三次多項式回歸模型：LAI=0.012RVI3-0.20RVI2+2.061RVI-0.508。判定系數(shù)R2達(dá)到0.726。(3)武漢市市域各種土地利用類型綠量貢獻(xiàn)大小排序為：農(nóng)田山體綠地丘陵消漲帶。各種土地利用類型的平均LAI大小排名為：丘陵山體農(nóng)田綠地=消漲帶。(4)建立了評價體系,篩選出可以作為基礎(chǔ)設(shè)施樞紐的山體,共65座(連接性較好的計為1座),并根據(jù)地理位置劃分為5片4帶5點共14個樞紐區(qū)域。(5)推算出樞紐內(nèi)山體、樞紐區(qū)域和樞紐區(qū)域的200m,500m,1000m緩沖區(qū)域的總綠量和單位面積綠量,根據(jù)不同緩沖區(qū)的變化推測出樞紐綠量的延伸性。
[Abstract]:With the development of society and the acceleration of urbanization, environmental problems become more and more prominent. People pay more and more attention to ecological security. Green infrastructure planning has been put forward as a way of smart growth and shrewd protection. It can provide a more scientific and sustainable development approach to our planning, landscape and environmental protection. The large mountain patch is the green source of the urban green infrastructure in Wuhan, is an important hub of the green infrastructure, and is also an important guarantee of urban ecological security. Compared with two-dimensional green quantity, three-dimensional green quantity can reflect the ecological benefit of mountain green quantity more reasonably. Therefore, it is of great significance to study the green quantity of mountain hinge in Wuhan City by using three-dimensional green quantity as the starting point to play a better role in ensuring the ecological security of Wuhan City. In this study, the three dimensional green quantity is taken as the breakthrough point, and the evaluation system is constructed to screen out the mountain body which can be used as the green infrastructure hub in Wuhan, and divide different research areas according to the mountain body location. Based on the regression model between vegetation index (鈪，

本文編號：1916703