本文選題：生態(tài)廊道 + 網(wǎng)絡(luò)格局��； 參考：《安徽農(nóng)業(yè)大學(xué)》2014年碩士論文

【摘要】：隨著城市的快速發(fā)展,城市中充斥著太多的混凝土結(jié)構(gòu),人們居住的環(huán)境日益惡化,同時由于城市發(fā)展過程中人們的不合理開發(fā)與利用,造成自然斑塊不足,城市綠量逐漸降低。因此,要想改善城市的生態(tài)環(huán)境,增加城市的綠化率,城市生態(tài)廊道的建設(shè)尤為重要。本文利用Daogle、ArcGis、Erdas、GoogleEarth等軟件,運用景觀生態(tài)學(xué)的方法,對合肥市域范圍內(nèi)的各類型生態(tài)廊道的景觀構(gòu)成、網(wǎng)絡(luò)結(jié)構(gòu)特點、城市綠色廊道的節(jié)點與綠心分布、綠色骨干廊道、道路綠色廊道的內(nèi)部結(jié)構(gòu)進(jìn)行分析與研究。研究區(qū)面積11429.68 km：,其中市區(qū)面積約925 km2(含巢湖水域面積72.93km2)。結(jié)論如下：(1)合肥市域范圍內(nèi)主要有由植被組成的綠色廊道、交通網(wǎng)組成的灰色廊道、水系組成的藍(lán)色廊道。廊道總面積為984.45 km：,占研究區(qū)面積的8.6%；灰色廊道、藍(lán)色廊道、綠色廊道的面積分別占廊道總面積的38.14%、10.15%、51.71%;而綠色廊道面積最大,其中,道路綠色廊道長度為15040.28 km,面積為416.79 km2,密度為1.32 km/km2,又以各縣主路綠色廊道的比重最大。道路綠色廊道無論是長度、面積,還是密度,其值都大于河流綠色廊道；環(huán)城綠帶的面積僅占綠色廊道總面積的3.88%,面積最��；合肥市域綠色廊道的網(wǎng)絡(luò)總面積為864.82km2,雖只占研究區(qū)總面積的8%,但其作用卻很重要；合肥市域綠色廊道網(wǎng)絡(luò)總面積中,綠色廊道面積最大為509.1 km2,節(jié)點面積次之為310.33 km2,綠心面積最小為45.39 km2。(2)合肥市各縣各類型廊道的景觀構(gòu)成分析,結(jié)果表明：各縣的道路綠色廊道面積為：長豐(58.72km2)肥東(40.42 km2》廬江(29.83 km2)巢湖(26.73km2)肥西(21.4 km2)；河流綠色廊道面積占各縣綠色廊道總面積的比例為：廬江(11.9%)長豐(7.6%)肥西(6.6%)肥東(5.8%)巢湖(5.4%)；從綠色廊道總的密度來看,各縣的河流綠色廊道的密度相差不大,但道路綠色廊道密度最大的是長豐縣,其密度為1,69,占綠色廊道總密度的30.67%。(3)道路綠色廊道的建設(shè)率普遍高于河流綠色廊道,各縣的道路綠色廊道建設(shè)率依次為：肥東0.94長豐0.82巢湖0.8廬江0.78肥西0.6；河流綠色廊道的建設(shè)率普遍較低,各縣均有一半以上的河流廊道沒有綠化覆蓋。(4)合肥市域范圍內(nèi),綠色廊道的網(wǎng)絡(luò)總的線點率為1.142,環(huán)通度為0.231,連通度為0.542,總體上綠色網(wǎng)絡(luò)結(jié)構(gòu)不夠完善,影響了綠色廊道的生態(tài)效應(yīng)。而相比之下,綠色骨干廊道的網(wǎng)絡(luò)結(jié)構(gòu)比之復(fù)雜的多。在合肥市綠色骨干廊道的網(wǎng)絡(luò)系統(tǒng)中,道路、河流的綠色骨干廊道的線點率分別為1,28、1.18；環(huán)通度分別為0.32、0.33；連通度分別為0.59、0.61。(5)合肥市域范圍內(nèi)共有1220個綠色廊道節(jié)點,其中：道路綠廊節(jié)點居多,有1035個,占總節(jié)點數(shù)的84.84%；而河流綠廊的節(jié)點較少,僅有181個。另外,綠色廊道的總面積也不大,為310.33 km2,占研究區(qū)面積的2.72%。除了城市主要交通干道的大型立交橋下所構(gòu)成的節(jié)點面積較大之外,一般情況下綠色廊道的節(jié)點面積較小。(6)合肥市域的綠色廊道共有292個附著節(jié)點,總面積為45.-9 km2,其分布范圍從0,008 km2到3.069 km2不等,平均面積為0.157 km2。其中,道路綠廊的綠心所占比重較河流綠廊的大,其面積約占綠心總面積的77.37%。(7)研究合肥市域的主次干道及對外交通干道的綠色廊道的斷面形式及植物的配置情況,發(fā)現(xiàn)合肥市區(qū)道路斷面布局以兩板三帶式為主,而三板四帶式和四板五帶式的出現(xiàn)的頻率較低。合肥市的道路綠色廊道的植物多以鄉(xiāng)土樹種為主,也適當(dāng)應(yīng)用了表現(xiàn)良好的外來樹種；道路綠色分車帶一般具有一定的寬度,其植物的配置多以喬、灌、草組成的復(fù)層結(jié)構(gòu),而在道路兩側(cè)綠化帶,植物的配置較為簡單,多為單一的喬木,偶有配有灌木和地被植物,綠化結(jié)構(gòu)較單一。
[Abstract]:With the rapid development of the city, there are too many concrete structures in the city, the living environment is worsening. At the same time, because of the irrational development and utilization of people in the process of urban development, the natural patches are insufficient and the green quantity of the city is gradually reduced. Therefore, it is necessary to improve the ecological environment of the city, increase the greening rate of the city, and the urban life. The construction of the corridor is particularly important. Using the software of Daogle, ArcGis, Erdas, and GoogleEarth, the landscape structure of various types of ecological corridors in the area of Hefei, the characteristics of the network structure, the distribution of green corridor nodes and green heart, the green backbone corridor and the green corridor of the road are carried out in this paper. The area of the study area is 11429.68 km:, the area of which is about 925 km2 (including Chaohu water area 72.93km2). Conclusions are as follows: (1) there are green corridors consisting of vegetation, gray corridor composed of traffic network and blue corridor composed of water system in Hefei area. The total area of the corridor is 984.45 km:, accounting for 8.6 of the area of the study area. The area of grey corridor, blue corridor and green corridor accounted for 38.14%, 10.15%, 51.71% of the total corridor area respectively, and the green corridor area was the largest, of which the green corridor length was 15040.28 km, the area was 416.79 km2, the density was 1.32 km/km2, and the proportion of the green corridors of the main roads in each county was the largest. The road green corridor was the length and surface. The area of the green belt around the city is only 3.88% of the total green corridor area, and the area is the smallest. The total area of the green corridor in Hefei is 864.82km2, although it only accounts for 8% of the total area of the study area, but its role is very important; in the total area of the green corridor network in Hefei City, the green corridor area is in the total area. The maximum of the product is 509.1 km2, the area of node is 310.33 km2 and the area of green center is 45.39 km2. (2). The landscape structure of various corridors in Hefei county is analyzed. The results show that the green corridor area of the counties is: Changfeng (58.72km2) Feidong (40.42 km2> Lujiang (29.83 km2) Chaohu (26.73km2) Feixi (21.4 km2), and the green corridor of the river. The proportion of the total area of green corridor in each county is: Lujiang (11.9%) Changfeng (7.6%) Feixi (6.6%) Feidong (5.8%) Chaohu (5.4%). From the total density of the green corridor, the density of the green corridor of the rivers in each county is small, but the density of the road green corridor is the largest in Changfeng County, and its density is 1,69, which accounts for the 30.67%. of the total green corridor density. 3) the road green corridor construction rate is generally higher than the river green corridor, the road green corridor construction rate in each county is in turn: Feidong 0.94 Changfeng 0.82 Chaohu 0.8 Lujiang 0.78 Feixi 0.6; the river green corridor construction rate is generally low, more than half of the counties have no green coverage in the river corridor. (4) the green corridor within the range of Hefei City, green corridor The total network line point rate of the network is 1.142, the ring connectivity is 0.231, the connectivity is 0.542, and the green network structure is not perfect on the whole, which affects the ecological effect of the green corridor. In contrast, the network structure of the green corridor is more complex than that. In the network system of the green backbone corridor in Hefei, the road and the green backbone corridor of the river The line point rate of the road is 1,28,1.18, the ring pass is 0.32,0.33, and the connectivity is 0.59,0.61. (5) in Hefei. There are 1220 green corridor nodes in the area of Hefei. Among them, there are many road green corridor nodes, 1035 and 84.84% of the total node number, while the river green corridors are less than 181. In addition, the total area of green corridor is the total area. It is also small, for 310.33 km2, the area of 2.72%., which accounts for the area of the research area, is larger than the large flyovers of the main traffic main road of the city. In general, the node area of the green corridor is smaller. (6) there are 292 attached nodes in the green corridor of Hefei City, with a total area of 45.-9 km2, and their distribution range from 0008 km2 to 3.06 9 km2, with an average area of 0.157 km2., has a larger proportion of green corridors in road green corridors than that of the river green corridor. The area is about 77.37%. (7) of the total green area of the green heart (7). The section of the main and secondary road and the green corridor of the main road in Hefei is studied. The layout of the road section in Hefei is found to be two plate and three. The band type is the main type, while the frequency of the three plate four belt and the four plate and the five band is lower. The green corridor plants in Hefei are mostly native trees, and are suitable for the good external tree species; the road green car belt usually has a certain width, and the plant is mostly composed of the complex layer of Joe, irrigation and grass. The plants on both sides of the road are relatively simple in configuration, mostly single trees, sometimes with shrubs and ground cover plants.
【學(xué)位授予單位】：安徽農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU985.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 韓貴鋒;趙珂;袁興中;孫榮;;基于空間分析的山地生態(tài)敏感性評價——以四川省萬源市為例[J];山地學(xué)報;2008年05期

，

本文編號：1945912