本文選題：楊樹 + 低效景觀林�。� 參考：《西北農(nóng)林科技大學(xué)》2015年碩士論文

【摘要】：大興區(qū)為五個(gè)風(fēng)沙危害區(qū)之一,風(fēng)沙危害程度和規(guī)模均較大,上世紀(jì)大興區(qū)開始進(jìn)行大規(guī)模的造林活動(dòng),且造林綠化樹種97%為楊樹,故有“楊家將”之稱。近年來,大興區(qū)楊樹林綜合效益不斷降低,更新速度慢,缺乏樹種選擇及植物配置等低效林更新改造技術(shù)。為了解決這一問題,本研究對楊樹防護(hù)林更新改造模式、楊樹片林改造升級公園、楊樹綠色通道改造提升等關(guān)鍵技術(shù)進(jìn)行了研究。主要獲得以下結(jié)論:1)選用落葉喬木22種,常綠喬木6種,花灌木31種,地被植物20種,水生植物6種。落葉、常綠喬木、花灌木、地被及水生植物的選擇及合理配置,達(dá)到了增添樹種、豐富季相變化、植物群落趨于平衡、形成復(fù)層立體結(jié)構(gòu)的目標(biāo)。2)公園的游憩、生物多樣性、景觀美化、教育、防災(zāi)避災(zāi)等特有功能得到體現(xiàn)。為居民提供了多處自然、健康、和諧、可持續(xù)的休閑游憩場所,公園周邊居民的居住環(huán)境發(fā)生了根本性的轉(zhuǎn)變,填補(bǔ)了該地區(qū)缺乏休閑區(qū)的空白,提高了居民生活質(zhì)量。3)篩選出適合在綠色通道改造提升中使用的落葉喬木8種、常綠喬木6種、花灌木9種、地被植物5種,常綠喬木應(yīng)加強(qiáng)管護(hù),二月蘭、板藍(lán)根需3~4年播種一次。4)篩選出綠色通道改造提升的7種模式,并確定其各自的適用條件,為華北地區(qū)道路和街區(qū)改造提升提供依據(jù)。
[Abstract]:Daxing District is one of the five wind-sand hazard areas. The damage degree and scale of wind-sand damage are great. In the last century, Daxing District began to carry out large-scale afforestation activities, and the afforestation tree species were poplar trees, so it is known as "Yang Jiagang". In recent years, the comprehensive benefit of poplar forest in Daxing district is decreasing, the regeneration rate is slow, and the technology of regeneration and transformation of low efficient forest is lacking, such as tree species selection and plant allocation. In order to solve this problem, the key technologies of poplar shelter forest renewal and transformation, poplar forest regeneration and upgrading park, poplar green channel reconstruction and upgrading were studied in this study. The main conclusions are as follows: (1) 22 species of deciduous trees, 6 species of evergreen trees, 31 species of flowering shrubs, 20 species of ground cover plants and 6 species of aquatic plants. The selection and rational allocation of deciduous leaves, evergreen trees, flowers and shrubs, ground cover and aquatic plants have increased tree species, enriched seasonal changes, balanced plant communities, and formed a layered three-dimensional structure of the park's recreation and biodiversity. Landscaping, education, disaster prevention and other unique functions have been reflected. It has provided many natural, healthy, harmonious and sustainable leisure and recreation places for the residents. The living environment of the residents around the park has undergone a fundamental change, filling the gap in the lack of leisure areas in the area. 8 deciduous trees, 6 evergreen trees, 9 flowers and shrubs, 5 ground cover plants, and evergreen trees should be strengthened and protected. In order to provide basis for road and block upgrading in North China, 7 models of green channel reconstruction and upgrading were screened out and their respective applicable conditions were determined for Radix Isatidis to be sown once every 3 ~ 4 years.
【學(xué)位授予單位】：西北農(nóng)林科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S688

【引證文獻(xiàn)】

相關(guān)會(huì)議論文 前1條

1 丁一;;淺談北京郊野公園的植物選擇及配置應(yīng)用——以昌平新城濱河森林公園為例[A];2009北京生態(tài)園林城市建設(shè)[C];2010年

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本文編號：1821163