本文選題：景觀格局 + 粒度效應(yīng)�。� 參考：《中南林業(yè)科技大學》2015年碩士論文

【摘要】：景觀格局是以不同景觀類型的相互作用為主要目的,改善區(qū)域生態(tài)環(huán)境為目標。本論文以海南省東方市為研究區(qū),利用面積信息守恒法、移動窗口法和景觀穩(wěn)定性評價模型,分析海南省東方市景觀格局,并提出相應(yīng)的景觀優(yōu)化調(diào)整的方案和建議,實現(xiàn)區(qū)域可持續(xù)發(fā)展。研究結(jié)果表明：1)東方市喬木林地和農(nóng)用地為優(yōu)勢景觀地類,分布較為廣泛；建筑用地和其他用地為劣勢景觀地類,分布較為集中。2)依據(jù)粒度效應(yīng)分析和面積信息損失精度分析可得,海南省東方市景觀適宜粒度為90m,粒度效應(yīng)分析結(jié)論可用于移動窗口的選取,即按所分析的粒度的(4n+1)倍來作為備選窗口尺度,既能保證該尺度下所反映的研究區(qū)范圍內(nèi)生態(tài)景觀信息與實地觀察結(jié)果保持一致,又能保證計算機進行分析運算時的效率。3)依據(jù)移動窗口法分析可得,2610m窗口尺度為分析海南省東方市景觀適宜分析尺度,該尺度下景觀指數(shù)變化浮動較為平滑,能較好的反映研究區(qū)內(nèi)的景觀格局現(xiàn)狀。4)依據(jù)景觀穩(wěn)定性空間差值分析可得,東方市景觀穩(wěn)定性空間分布狀況,結(jié)果表明東方市生態(tài)環(huán)境整體狀態(tài)良好,其中景觀穩(wěn)定區(qū)主要分布于西南部,該區(qū)域主要為大面積的喬木林地,林種以天然闊葉混交林為主；中度穩(wěn)定區(qū)主要分布于東方市的陀興水庫和大廣壩水庫周邊,該區(qū)域主要以喬木林為主,農(nóng)用地和水域交叉分布；一般穩(wěn)定區(qū)主要分布于感恩河、南清河和大安水庫附近,該區(qū)域主要以喬木林地和農(nóng)用地為主,水域零星分布；一般不穩(wěn)定區(qū)主要分布城鎮(zhèn)和村莊,該區(qū)域主要以建設(shè)用地和其他用地為主,生態(tài)環(huán)境受人類活動的影響,發(fā)生重大變化；十分不穩(wěn)定區(qū)主要分布區(qū)四更鎮(zhèn)、新龍鎮(zhèn)、抱板鎮(zhèn)和東方市市區(qū),該區(qū)域主要是建設(shè)用地和其他用地,生態(tài)環(huán)境遭受高強度人為改造,破壞嚴重。5)東方市應(yīng)采取退耕還林、退耕還湖、植樹造林等措施,調(diào)整區(qū)域內(nèi)建設(shè)用地、農(nóng)用地和其他用地的景觀比重,提升喬木林地和紅樹林地的景觀質(zhì)量,優(yōu)化東方市的景觀結(jié)構(gòu),改善生態(tài)環(huán)境,促進生態(tài)效益和經(jīng)濟效益共同增長,實現(xiàn)東方市的可持續(xù)發(fā)展。
[Abstract]:Landscape pattern is aimed at the interaction of different landscape types and the improvement of regional ecological environment. This paper takes Dongfang City, Hainan Province as the research area, uses area information conservation method, moving window method and landscape stability evaluation model, analyzes the landscape pattern of Dongfang City, Hainan Province, and puts forward the corresponding scheme and suggestion of landscape optimization adjustment. To realize regional sustainable development. The results show that tree woodland and agricultural land are the dominant landscape land in Dongfang city, and the construction land and other land use are the inferior landscape land. According to the granularity effect analysis and area information loss precision analysis, the suitable granularity of Dongfang landscape in Hainan Province is 90 m, and the conclusion of granularity effect analysis can be used to select moving window. That is to say, using 4n 1 times of the size analyzed as an alternative window scale, it can ensure that the ecological landscape information reflected in the study area under this scale is consistent with the field observation results. It can also ensure the efficiency of computer analysis. 3) according to the moving window method, we can get the suitable analysis scale of 2610m window for the analysis of landscape in Dongfang City, Hainan Province, under which the fluctuation of landscape index is relatively smooth. According to the spatial difference analysis of landscape stability, the spatial distribution of landscape stability in Dongfang City is obtained. The results show that the overall ecological environment of Dongfang City is in good condition. The landscape stabilization area is mainly distributed in the southwest, and the forest species are mainly natural broad-leaved mixed forests, while the moderate stable areas are mainly distributed around the Tuoxing Reservoir and the Daguangba Reservoir in Dongfang City. In this area, Arbor forest is the main area, agricultural land and water area are intersected, the general stable area is mainly located near the Thanksgiving River, Nanqing River and Da'an Reservoir, and the area is dominated by Arbor woodland and agricultural land, and the waters are scattered. In general, unstable areas are mainly distributed in towns and villages. The main areas in this area are construction land and other land uses. The ecological environment is affected by human activities and has undergone major changes. Huabanzhen and Dongfang urban areas, which are mainly used for construction and other land use, the ecological environment suffered high intensity artificial transformation, serious damage. 5) Dongfang City should take measures such as returning farmland to forest, returning farmland to lakes, planting trees and afforestation, etc. Adjust the landscape proportion of construction land, agricultural land and other land in the region, improve the landscape quality of forest land and mangrove land, optimize the landscape structure of Dongfang City, improve the ecological environment, and promote the common growth of ecological benefits and economic benefits. To realize the sustainable development of Dongfang City.
【學位授予單位】：中南林業(yè)科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P901

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