摘要:采用樣地調(diào)查法,對(duì)楚雄市老城區(qū)行道樹(shù)的組成、胸徑、樹(shù)高、冠幅及垂直結(jié)構(gòu)進(jìn)行了調(diào)查。結(jié)果表明,研究區(qū)內(nèi)行道樹(shù)共有喬木30種、灌木9種,物種豐富度偏低。在分析楚雄市老城區(qū)行道樹(shù)組成的基礎(chǔ)上,探討了楚雄市道路綠化樹(shù)種配置方面存在的問(wèn)題,并提出改善建議。
關(guān)鍵詞:楚雄市;老城區(qū);行道樹(shù);組成;配置
中圖分類(lèi)號(hào):S731.2;S687.1;S725.1(743CX) 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):0439-8114(2011)20-4228-04
Study on the Composition and Configuration of Street Trees in the Old Area of Chuxiong City
WEI Yu,QIU Jian-lin,TONG Shao-yu
(Department of Geographical Science and Tourism Management, Chuxiong Normal College,Chuxiong 675000, Yunnan, China)
Abstract: The composition, DBH, height, canopy diameter and vertical structure of street trees in old urban district of Chuxiong were studied using the method of sample survey. The results showed that there were thirty kinds of trees, nine kinds of shrubs in the researched area, and the species diversity was low. The configuration of trees was studied and some suggestions on improving the function of the street trees were proposed.
Key words: Chuxiong city; old urban district; street trees; composition; configuration.
行道樹(shù)是指按一定方式種植在城鄉(xiāng)道路兩旁的喬木或灌木,又稱(chēng)“蔭道樹(shù)”或“路樹(shù)”,其功能在于為行人創(chuàng)造良好的小氣候環(huán)境,使路面避免過(guò)強(qiáng)的陽(yáng)光照射,并調(diào)節(jié)環(huán)境的溫度與濕度,可以消煙、滯塵、防風(fēng)、凈化空氣和減少噪音,對(duì)美化市容、路景增色、保護(hù)道路以及戰(zhàn)備防護(hù)等具有一定的功效[1]。城市道路綠化,既是城市園林綠地系統(tǒng)的重要組成部分,也是連接城市分段隔離綠地的紐帶,同時(shí)又為自然界的動(dòng)物提供了棲息地及遷徙通道,在生態(tài)上被認(rèn)為是城市恢復(fù)自然狀態(tài)的重要手段,所以其功能越來(lái)越受到人們的重視[2,3],而且城市的綠化水平能在一定程度上反映出城市的綜合實(shí)力。目前,云南省楚雄市正在為建設(shè)優(yōu)秀旅游城市而不斷努力,要想實(shí)現(xiàn)該目標(biāo),就要不斷改善城市的整體面貌。目前楚雄市分為新、老城區(qū),新城區(qū)建成不久,城市整體布局比較完善,而老城區(qū)歷史文化悠久,人口比較稠密,車(chē)流量較大,建筑布局有待改善。我們通過(guò)樣地調(diào)查法,對(duì)楚雄市老城區(qū)的行道樹(shù)……