共查询到19条相似文献,搜索用时 171 毫秒
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城市生物多样性保护规划探讨 总被引:4,自引:0,他引:4
依据生物多样性方法和原理,从植物和动物2个方面探讨了城市生物多样性保护规划的内容,提出城市生物多样性保护中值得关注的问题。应根据绿地的功能和生境类型进行植物配置,构建以自然群落为基础的人工群落,是城市绿地系统中植物多样性保护的重点。通过规划栖息地和建设生态廊道的方法可以有效地进行动物多样性保护工作,该文对城市生物多样性保护规划的编制有参考价值。 相似文献
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四川及成都地区的植物多样性 总被引:1,自引:1,他引:0
前言生物多样性是人类赖以生存和发展的基础。保护和保持生态系统中物种的多样性,特别是植物种类的多样性,将有助于生态系统的平衡。近年,城市园林绿化的迅速发展为城市这一特殊环境中生物多样性的保护和发展提供了空间和条件。保护城市生物多样性将促进生物遗传基因的... 相似文献
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构建福州城市植物多样性绿化对策探讨 总被引:1,自引:2,他引:1
从规划绿地空间、保护古榕树、加强风景林地植被抚育、扩大植物种群应用、构建复层植物群落、营造多样的园林景观、考虑民俗文化植物开发、重视表层土保护和控制危害性植物应用等方面,探讨了构建福州城市植物多样性绿化对策,从而为进一步实施保护和重建城市生物多样性提供参考。 相似文献
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对城市绿地系统植物多样性保护的认识及建议 总被引:21,自引:2,他引:19
“保护生物多样性就是保护人类自己”已是当今世界人类的共同责任。城市绿地是我国保护植物多样性的重要基地。本文对生物多样性保护及城市绿地系统植物多样性保护的必要性和重要性提出了自己的看法。并根据成都市的实际情况提出了建设园林植物群落;增加城市绿化苗木;保护古树名木做好园林植物引种;加强乡土植物资源的保存利用和建设城市大园林等六个方面的建议。 相似文献
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城市水体生态区野生生物栖息地植物景观设计初探 总被引:4,自引:0,他引:4
城市水体生态区是城市野生生物多样性的重要场所。文章总结了鱼类、鸟类、蝶类与水体生态区植物的关系,分别阐述其栖息地的植物选择原则及植物种类,并初步探讨野生生物栖息地植物景观设计方法,对于合理进行景观规划和种植设计,进而保护和增加城市野生动物多样性有一定指导意义。 相似文献
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乡土植物在园林中对生物多样性保护的作用 总被引:10,自引:0,他引:10
城市的发展导致了大面积土地利用方式的改变,引起的直接后果是生物多样性的丧失。解决这一矛盾的方法之一是在园林绿化中较多地应用乡土植物。乡土植物作为大自然长期进化的结果,能为当地物种的保护提供更多的栖息地和食物资源,对生物多样性保护具有重要意义。文章从园林绿化发展的背景出发,提出应用乡土植物的必然性,并介绍了它在提高植物与动物多样性方面的贡献。同时以广州园林绿化作为案例诠释理论,并提出在保护生物多样性方面应做的工作,以及在园林绿化中乡土植物的配置。 相似文献
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该文分析了城市生物多样性保护的现状和存在的问题,探讨了开展城市公园生物多样性保护的途径,提出应从乡土植物品种的开发利用等6方面做起,以促进城市生物多样性保护的发展。 相似文献
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Urbanization is developing rapidly in the world, which seriously changes the habitat of organisms and has clearly a negative effect on biodiversity. Preservation of biodiversity is crucial in urban planning and management, which is also an important symbol for the level of greening. Problems such as scarcity of urban green space and plant species have become obstacles to the establishment of ecological friendly cities. However, coexistence of nature and modernization, as well the coordination of economic development and biodiversity, are goals that people are seeking. We have taken the builtup areas of Beijing as a study case and discussed the impacts of urbanization on plant diversity, with the support of fieldwork and SPOT remote sensing data. The results are as follows: 1) in the process of urbanization, exotic plants have been widely introduced, which has affected species composition and the proportion of native plants; it is clear that artificial green spaces always will have a lower level of plant diversity than natural green spaces; 2) functional differences of green space types partially decide their species abundance, so that plant diversity in greenbelts and streets is generally lower than in parks; 3) the spatial variety of plant diversity contributes much to the imbalance of district de- velopment and the planning of different functional zones; this variation is embodied in different ring-belts and directions; 4) habitat fragmentation also affects plant diversity to a great extent; there is a significant positive correlation between high fragmentation and low plant diversity. According our results, some suggestions are proposed, which would be suitable for the preservation of plant di- versity and ecological improvement during urbanization. 相似文献
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From March 2007 to March 2009 we quantified plant diversity at Chilapatta Reserve Forest in Terai Duars in the Indian eastern Himala-yas. We sampled stratified random nested quadrats. Species richness was 311, representing 167 genera and 81 families. The species diversity index and concentration of dominance of the forest were 2.20 and 0.0072, respectively. Shannon-Wiener index and evenness indices were 4.77 and 1.44, respectively. The Importance Value Index (IVI) of species ranged from 0.13 to 37.94. The estimated diversity indices indicated heterogene-ity of the forest in its composition, structure, function and dynamics. Rich forest plant diversity supports the need for continued conservation of tropical forests. 相似文献
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基于山西省太原市45个居住区绿地植物多样性调查,运用植物多样性指数及PCA主成分分析,分析居住区绿地植物多样性特征及其与社会经济因子之间的关系。结果表明,太原市居住区绿地中维管束植物146种,隶属于39科、73属,其中乔木101种,灌木45种。53%的居住区绿地中的乔木物种数为11~20种,而51%的居住区绿地中的灌木物种数为5种及以下,乔木物种的丰富度和均匀度均明显高于灌木物种。PCA排序结果显示,城镇居民人均可支配收入、城镇居民人均消费性支出及房龄是影响植物多样性水平的主要因子。 相似文献
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西双版纳国家级自然保护区特殊的自然环境孕育了丰富多样的兰科植物资源.2006~2008年作者对该保护区野生兰科植物资源的现状进行了调查,基于调查结果对保护区内野生兰科植物的多样性及分布进行了分析,并就如何加强兰科植物资源的就地保护及合理利用提出了建议. 相似文献
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