从城市建筑看城市文化

关于城市的界说之一,是美国城市建筑学家刘易斯·芒福德的名言:“城市是文化的容器。”的确,不同的城市面貌、街道景观,是我们区别、认识不同文化最直接的途径。城市建筑被称为“凝固的音乐”,它承载、凝固的不仅仅是建筑艺术,而且是不同时代的社会文化、历史文化、民族文化、地域文化、政治文化等等。1.北京和南京虽然在许多方面,北京和上海最显著地形成一种对比;但在城市建设和规划上,最具有可比性的却是北京和南京,它们是两个时代分别由中国人自己规划、建设的国都。在规划和城市建筑风格的指导思想上,《首都计划》称其主旨是“发扬光大…     

平顶山市新城区景观水体的生态保护

水体景观是平顶山市新城区的特色与亮点,而景观水体是一个脆弱的生态环境.新城区景观水体生态保护问题,是建设适宜21世纪人类居住环境的关键.根据平顶山市新城区自然环境的特点,探讨了在新城区开发建设过程中,水库近岸湿地生态系统的保护、分水岭以北区域水体景观的建设及公共环境意识等问题.     

城市景观水体的净化及增氧

以太阳能为动力，对受污染的景观水体直接进行催化臭氧化及增氧，由于催化氧化反应剩余气体中氧气含量大于90％，故大大提高了水体曝气增氧过程中氧的传输速率。处理后水体苯环类有机污染物的浓度明显下降．灭藻效果明显，可生化性显著增强。     

亚热带岩溶山区植被演替和夏季土壤CO2浓度动态关系

对南川市金佛山西坡相近的环境条件下不同植被类型土壤CO2 浓度及其主要环境因子进行连续观测的基础上 ,采用空间换时间的方法对植被演替对夏季土壤CO2 浓度的动态影响作了详细的研究 ,认为 :土壤CO2 随气温的变化有明显的日变化 ,降水对其浓度也有较大的影响 ,其变化过程及CO2 浓度剖面动态与植被类型有关 ;不同植被条件下土壤CO2 浓度月动态受环境因素影响显示出的差异不大 ,但浓度值水平有很大差别 ;植被演替是岩溶和土壤吸收CO2 作用的重要促进因素 .     

基于人工神经网络的城市航空遥感图像植被分类研究

研究了一种基于模糊量化与多层前馈神经网络相结合进行多类别遥感图像植被分类的新方法.对分类指标 进行π隶属函数模糊量化之后,进行多层前馈神经网络(MLP)训练,再用训练后的MLP网络构成监督分类器,并 以宁波市彩红外航空遥感图像资料为数据源,选取园林区为试验区,对植被进行监督分类,分类精度达78%.研究 成果表明,该方法适用于多类别的遥感图像植被分类,其分类效果也较好.     

对龙岩学院景观绿化工程建设的几点建议

随着社会的发展和人们审美意识的不断提高,植物造景不仅是人们审美情趣的反映,更是兼备了生态、文化、艺术等多种功能。当前,它已经渗透在环境建设的方方面面,如何结合现代高校特点研究传统园林的植物景观配置,创造出适合现代审美且具有时代特色的植物景观,是在高校景观绿化中值得重视的问题。     

城市绿地科学规划探讨

介绍了城市景观和城市绿地系统对城市景观的贡献，分析了城市绿地系统规划层次，指出各规划层次的规划原则、目标、具体内容及实施规划的措施，提出了科学编制城市绿地系统规划应考虑的6个基本问题和打造生态园林城市的10项建议。     

吉林珲春新近系土门子组孢粉组合及其意义

通过对吉林珲春土门子组孢粉样品分析。建立了Quercoidites-Ulmipollenites-Liquidambar-pollenites组合。根据孢粉植物群特征及其与周围地区对比，其地质时代归属新近纪中中新世为宜。孢粉组合中喜温成分占多数，亚热带成分如Caryapollenites、Liquidambarpollenites等也较为常见，反映了当时比较温暖湿润的暖温带-亚热带气候，在我国第三纪植物群区系中属于东部落叶阔叶林植物区。     

NPP distribution related to the terrains along the North-South Transect of Eastern China

Vegetation net primary productivity (NPP) is defined as the accumulative amount of organic matters per unit area and time, which is calculated from the difference between accumulative photosynthesis and accumulative autotrophic respiration by green plants. Since the NPP reflects the physiological and ecological characteristics of the plants and the interactive results of the environmental factors, it is an important index to evaluate a structure of ecological system, functional features and …     

Approaches to prediction of impact of Qinghai-Tibet Railway construction on alpine ecosystems alongside and its recovery

With the aid of the Remote Sensing (RS) and Geographic Information System (GIS) technology, the ecosystem pattern and fragility distribution maps of the 50-km-wide zone along the Qinghai-Tibet Railway were compiled and by using the superimposition method, range, area and indexes of the impact of various engineering activities on the ecosystems alongside the railway were studied. By making reference to the ecosystem recovery process of the Qinghai-Tibet Highway, mechanisms of recovery of the alpine ecosystems alongside the Qinghai-Tibet Railway were studied and extents and rates of the recovery were predicted.The results indicate that the impact of the railway engineering on the Alpine ecosystem depends mainly on how much the original surface soil in the zone has been disturbed and how fragile of the ecosystem per se. Restoration of vegetation coverage and species abundance shows a significantly reverse relationship with disturbance of the original surface soil but an extremely positive one with the length of the restoration period and mean annual precipitation and annual mean relative humidity in the period and no obvious bearings with altitude and temperature. In sections with an annual precipitation over 200mm, as long as a certain percentage of original soil is left in situ, it takes only 30 years or so for biodiversity to get basically restored to the original level after the construction is completed but at least 45-60 years or more for vegetation coverage.