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西安植物园展览温室植物选择及引种植物研究初报 总被引:2,自引:1,他引:1
为了更有效地进行植物多样性保护,充实现有景观,2006年西安植物园展览温室加大植物引种栽培力度,重新布展。目前共收集热带亚热带植物120科233属609种。其中兰科25属近60种,棕榈科14属29种,热带果树10科19种,多肉植物16科44属100余种,珍稀濒危植物22种。针对引种植物不同的形态、观赏特性、用途以及该温室特点共分了8个植物区域:多肉多浆区、棕榈植物区、四季花园区、观果植物区、附生植物区、荫生植物区、观叶观花植物区、悬垂植物区。温室今后应加大对专类植物以及珍稀濒危植物的保护力度,同时为有效利用有限的空间资源,草本植物、悬垂植物及附生类植物也应加强收集保存。 相似文献
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广西野生稻资源原生境保存探讨 总被引:1,自引:0,他引:1
农业野生植物资源原生境保存是国际植物遗传资源界推崇的一种保存方式,开展野生稻资源原生境保存,能为野生稻资源利用提供丰富的优异种质与特异基因;为稻种基础理论研究提供更广泛的遗传多样性,具有十分重大的意义。本文认真探讨广西野生稻资源原生境保存方式,保存检测技术方法及保护制度运行机制等问题,并提出广西野生稻资源原生境保存的合理化建议。 相似文献
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武汉植物园景观温室植物生长现状及景观应用分析 总被引:1,自引:1,他引:0
为了对景观温室植物生长状态有更好的了解,选择位于中部地区中国科学院武汉植物园内最大的景观温室做植物调查,从植物收集、科普教育、景观展示等方面阐述景观温室的特色与创新之处。结果表明,该温室现存植物420种,隶属83科242个属;其中观叶观花类植物109种,隶属18科56属;观花观果类植物16种,隶属8科13属。景观温室未来的发展趋势是温室群,应加强对现有植物资源保护和对专类植物的收集力度,同时加强科普教育宣传工作,努力打造温室特色景观。 相似文献
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海南普通野生稻居群植被物种多样性研究 总被引:1,自引:1,他引:0
为了摸清海南岛现存普通野生稻原生境植被物种的数量和种类,探究其植被群落物种特征,分析普通野生稻原生境伴生物种的特征特性,对海南岛境内普通野生稻(Oryza rufipogon Griff)原生境群落进行了调查和分析。通过调查,记录样地生境信息、野生稻居群大小,统计不同样点普通野生稻伴生物种种数。结果表明:海南岛普通野生稻原生境共记录植物119种,属28科。普通野生稻原生境的植被按乔木层、灌木层、草本层进行分类,乔木共计5种,分属5科;灌木层共计13种,分属9科;草本层共计101种,分属14科。原生境中物种数总体表现为:乔木层极少、灌木层较少,草本层为主的特征,其中草本层又以禾本科和莎草科植物为主。生境中外来入侵种成功入侵和人类的经济活动,共同构成了影响海南岛普通野生稻原位保护的主要因素。 相似文献
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光农业园植物景观营造——以成都“五朵金花”为例 总被引:1,自引:1,他引:0
以成都“五朵金花”观光农业园区为例,采用典型样地法,选取44个样地对植物景观进行实地调查与研究.分析了样地内植物景观的物种组成、季相特征、群落结构和配置形式.结果表明,成都“五朵金花”观光农业园区的植物种类丰富,常用物种较少,植物景观的物种组成多样;通过合理配置,植物景观四季有景可赏;多数树种处于幼龄阶段,同种物种个体大小不同,植物景观随时间推移会发生显著变化;植物景观的配置形式多为乔灌草的复层结构,景观功能和生态效益良好.最后为观光农业园的植物景观营造提出建议. 相似文献
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国外室内植物的起源和历史 总被引:1,自引:2,他引:1
追溯了国外室内植物的起源,盆栽是一个历史性的转折。温室的出现为植物进入室内提供了条件,为室内植物创造适宜的生长环境,其中培育暖房和橙屋都是早期温室的一种形式。阐述了它的历史,在室内植物的产生过程中,植物收集者们的功劳是最大的,19世纪后半期是引进全世界各地室内植物到欧洲的鼎盛时期,植物收集者的贡献不可忽视。在所有收集者们中最有名的两个姓氏是Joseph和Veitch。室内植物令人惊奇的是,各种不同气候带的植物都可以在同一个环境中生长,使得室内的植物物种极为丰富。随着室内环境的改善,可以在室内生长的植物种类将会更多。 相似文献
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中国樱桃泰山干樱的组织培养及植株再生研究 总被引:2,自引:0,他引:2
以中国樱桃泰山干樱(Prunus pseudocerasus Lindl.)一年生枝的休眠芽为外植体,研究了不同种类和不同浓度生长调节物质对泰山干樱初代培养、增殖和生根的影响。结果表明,泰山干樱的最佳初代培养基为MS+6-BA1.0mg/L+IBA0.2 mg/L;MS培养基中分别加入0.5mg/L 6-BA 和0.1mg/L ZT,增殖效果最好,增殖系数达6.8,有效新梢数可达80.2%;组培苗在1/2 MS+IBA 0.5mg/L培养基上根诱导效果最好,生根率可达80%,平均根长4.54cm;移栽到草炭土和河沙1∶1的混合基质中,温室炼苗后,成活率可达70%以上。 相似文献
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Under the impetus of China's urbanization and industry updates, the high-tech new towns (areas) are developing rapidly with an unprecedented scale. The areas which being rich in the natural environment resources, but weak in traffic up are also included in the urban construction lands, and often these urban construction lands is a new city or high-tech development zone of choice. In the city's character building and natural resource protection, the high-tech new town (area) has a lot of issues such as the popular gathering, environmental protection, investment and so on. In this paper, Yantai City of Shandong high-tech Development Zone, an instance of the urban design for the card, summary of the Binhai New Science and Technology Park development characteristics and design requirements, refining the design concept and strategy, shaping the features multi-purpose, rich in content, distinct features of the city park life designed to provide a reference for similar urban planning and design. 相似文献
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SUN Hong-jie 《保鲜与加工》2003,(12):117-118121
Generally, low efficiency in information-sharing and the information distortion are came into being because of the conflicts in interests among the partners in the supply chain. This article discusses the phenomenon of information distortions and bullet effect in brief. It focuses on the information distortion caused by mechanism, and analyses the problem with game theory. In our discussion, a supply chain formed by a producer and a retailer is supposed, and to avoid information distortions, the producer how to design its mechanism. 相似文献
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基于分层非监督分类的油菜面积识别研究 总被引:1,自引:0,他引:1
中国油菜生产表现为破碎化种植的特点,常规地面调查方法费时费力代表性差,遥感方法逐渐成为了油菜面积监测的理想途径。目视解译、监督分类等遥感分类方法人机交互量大,受监测者主观影响较大。针对上述问题,笔者提出一种基于先分层后进行非监督分类的油菜监测新方法,利用从江县2013 年的GF影像对该方法进行了应用和精度评价,本次应用中使用了等距分层和自然分层两种分层方法。结果表明:相较直接非监督分类结果,先分层后非监督分类方法显著提高了总体精度。基于等距分层和自然分层方法总体精度从79.16%提升到了84.44%和85.17%。直接非监督分类中精度仅为72.97%的用户精度在等距分层和自然分层处理后,精度分别提升为81.05%和86.12%,大大降低了直接非监督分类中非油菜区被错判为油菜的现象。等距分层和自然分层方法的总体精度分别为84.44%和85.17%,Kappa 系数分别为0.69 和0.70。精度上两种分层方法间无显著的差异,自然分层方法的用户精度、制图精度和总体精度都保持在较高的水平,具有更高的可靠性。文中提出的新方法具有人工干预少,精度高的特点,在基于大批量影像的面积监测方面具有较大的应用潜力。 相似文献
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《Journal of Landscape Research》2017,(2)
The current situation of plants in Shilihe Beach of the Huaxi National Urban Wetland Park was investigated and analyzed. The results show that there are about 181 species of landscape plants in this park, of which arbors and shrubs are dominant. Various species of plants grow differently because of different types of artificial maintenance. The overall partition of the wetland park dose not follow the features of a river-type wetland and is not clear. In this park, the planting area of hygrophyte is far less than that of terrestrial plants. As a result, the wetland park is evolving into a public garden. It is suggested that the overall design of the park should be conducted in accordance with site characteristics and resources, and the park should be developed and built reasonably based on the principle that the ecology is a priority. 相似文献
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《Journal of Landscape Research》2017,(2)
According to the drainage problems emerging from the several torrential rainstorm in domestic coastal cities in the last two years, especially the issues that the drainage and waterlogging prevention of coastal cities are susceptible to the tide level of open seas, this paper took the reconstruction of Yingping District in Xiamen, a typical coastal area, as a case study, analyzed the main waterlogging causes of the district under the influences of the average annual tide level and storm tide caused by typhoon with the application of drainage model, and came up with reasonable implementation strategies for reconstruction;besides, this paper also assessed and divided the waterlogging risks of the district under the influences of storm tide and applied engineering measures as well as non-engineering measures to prevent the urban cities from water-logging hazards. It is expected that the study would provide reference for the reconstruction of coastal cities in drainage and water-logging prevention. 相似文献
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