基于遙感數(shù)據(jù)的灘涂圍墾區(qū)景觀格局分析
發(fā)布時(shí)間:2018-06-01 18:18
本文選題:景觀格局 + 景觀指數(shù); 參考:《寧波大學(xué)》2014年碩士論文
【摘要】:本研究對(duì)慈溪海涂圍墾區(qū)景觀、江蘇海門和連云港海涂圍墾區(qū)景觀進(jìn)行相關(guān)研究。 (1)運(yùn)用遙感信息技術(shù)和地理信息處理軟件Arcgis、Envi、Erdas等,運(yùn)用遙感信息技術(shù)和地理信息處理軟件ArcGIS、ENVI、ERDAS等,對(duì)慈溪2000、2006和2013年3期遙感影像進(jìn)行釋譯,選取景觀格局指數(shù),對(duì)慈溪市圍墾區(qū)13年間景觀動(dòng)態(tài)變化過程進(jìn)行相關(guān)研究。結(jié)果表明:(1)慈溪圍墾區(qū)各類景觀在時(shí)間序列上有著明顯差異性變化;(2)圍墾區(qū)內(nèi)部景觀水平之間的相互轉(zhuǎn)化比較多,突出表現(xiàn)為水體、林地、草地、裸地向建筑與養(yǎng)殖塘等的轉(zhuǎn)化;(3)13年間研究區(qū)景觀形狀變得復(fù)雜化,整體景觀多樣性指數(shù)、均勻度指數(shù)都有所降低,景觀破碎化程度增大。 (2)運(yùn)用RS和GIS技術(shù),以海門1989、2001和2014年3期TM影像為基礎(chǔ)數(shù)據(jù),計(jì)算景觀格局指數(shù),對(duì)海門市圍墾區(qū)25年間土地利用變化及其景觀格局動(dòng)態(tài)變化過程進(jìn)行相關(guān)研究分析。結(jié)果表明:海門的土地利用處于一個(gè)快速發(fā)展時(shí)期,海門圍墾區(qū)各類景觀格局有著明顯的時(shí)空變化;建筑景觀在不斷增加,農(nóng)用地林草地草地面積景觀類型在不斷減小,水體景觀略有變化,其中建筑景觀增長速度超過農(nóng)用地減小速度;25年間研究區(qū)景觀類型變化不一,整體景觀破碎化程度加劇。海門市景觀經(jīng)濟(jì)效益發(fā)展同時(shí),海門市景觀生態(tài)環(huán)境需要進(jìn)一步提高,不斷加大生態(tài)環(huán)境保護(hù)的建設(shè)和治理力度。 (3)以圍墾區(qū)地區(qū)連云港市區(qū)為例,基于Erdas8.7、Arcgis9.0及Fragstats3.3等軟件平臺(tái),對(duì)1987、2000、2014年遙感影像進(jìn)行解譯,應(yīng)用景觀生態(tài)學(xué)及其他定量分析方法,探討了近27年來研究區(qū)的土地利用和景觀格局變化特征,結(jié)果表明:圍墾區(qū)過程明顯,城市用地持續(xù)增加,主要通過占用農(nóng)用地來實(shí)現(xiàn)。農(nóng)用地面積減少量在所有土地利用類型中列第一位,面積減少幅度也最大,建筑用地為其主要流向。可從現(xiàn)在大概推出,從20以后年至一段平穩(wěn)期,圍墾沿海地區(qū)農(nóng)用地、林地面積將持續(xù)減少,水域和建設(shè)用地將逐年增加。人口增長,城市擴(kuò)展,科技進(jìn)步是連云港圍墾區(qū)景觀格局變化的主要驅(qū)動(dòng)因數(shù)之一,通過本文研究可初步得出結(jié)論:今后的城市建設(shè)必須采取措施保護(hù)區(qū)內(nèi)的弱勢(shì)景觀,如農(nóng)用地、林地、水體等。 經(jīng)濟(jì)效益上土地利用景觀類型工業(yè)利用型大于城市利用型,,而農(nóng)業(yè)利用型最;生態(tài)效益方面是土地利用景觀類型工業(yè)利用型小于城市利用型,而農(nóng)業(yè)利用型最大。
[Abstract]:The landscape of coastal reclamation area in Cixi, Haimen and Lianyungang in Jiangsu Province was studied. 1) using remote sensing information technology and geographic information processing software Arcgis-Envier Erdas, using remote sensing information technology and geographic information processing software ArcGIS-ENVIIERDAS to interpret and translate three remote sensing images of Cixi in 2006 and 2013, and selecting landscape pattern index. The dynamic changes of landscape in Cixi Reclamation area during 13 years were studied. The results showed that there were obvious differences in time series between different landscape types in Cixi Reclamation area. In the past 13 years, the landscape shape of the study area became more complicated, the diversity index and evenness index of the whole landscape decreased, and the degree of landscape fragmentation increased. (2) based on the TM images of Haimen 19892001 and 2014, the landscape pattern index was calculated by using RS and GIS techniques. The dynamic changes of land use and landscape pattern in the reclamation area of Haimen City during the past 25 years were studied and analyzed. The results showed that the land use of Haimen was in a period of rapid development, and the landscape pattern of all kinds of landscape in Haimen Reclamation area had obvious temporal and spatial changes, the architectural landscape was increasing, and the landscape types of agricultural land, forestry and grassland were decreasing. There were some changes in water landscape, among which the increasing rate of architectural landscape was higher than that of agricultural land reduction. The landscape types of the study area varied in the past 25 years, and the degree of fragmentation of the whole landscape was intensified. At the same time, the landscape ecological environment of Haimen needs to be further improved, and the construction and management of ecological environment protection should be strengthened. Taking Lianyungang urban area in reclamation area as an example, based on Erdas 8.7 Arcgis 9.0 and Fragstats3.3, the remote sensing images of 1987 ~ 2000 and 2014 were interpreted, and landscape ecology and other quantitative analysis methods were applied. The changes of land use and landscape pattern in recent 27 years in the study area were discussed. The results showed that the process of reclamation was obvious and the urban land continued to increase, which was mainly realized by occupying agricultural land. The decrease of agricultural land area is the first among all land use types, and the decrease of area is also the largest, and the construction land is the main flow direction. From now on, from 20 years to a steady period, the area of forest land will continue to decrease, and the water area and construction land will increase year by year. Population growth, urban expansion, scientific and technological progress are one of the main driving factors of landscape pattern change in the reclamation area of Lianyungang. Through the study of this paper, we can draw a preliminary conclusion: in the future urban construction, we must take measures to protect the weak landscape in the protected area. Such as agricultural land, woodland, water, etc. In economic benefits, the industrial utilization type of land use landscape type is larger than that of urban use type, while the agricultural utilization type is the least, and the ecological benefit is that the industrial utilization type of land use landscape type is smaller than that of city utilization type, and the agricultural utilization type is the largest.
【學(xué)位授予單位】:寧波大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:P748;P901
【參考文獻(xiàn)】
相關(guān)期刊論文 前1條
1 潘琛;耿直;王琛;;基于遙感技術(shù)的城市景觀格局分析[J];黑龍江科技信息;2008年05期
本文編號(hào):1965173
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