兰州市环境管理空间辅助决策系统的改进与创新

编者按 作为我国西部的工业城市,兰州市GDP的快速增长和其脆弱的生态环境间的矛盾日益显著.作为实现环境保护历史性转变的重要手段,兰州市对其环境管理系统进行了改进和创新.     

城市垃圾处理的发展趋势及可能引起的环境问题

本文简要分析了城市垃圾的特点、危害 ,处理的发展趋势及可能引起的二次污染问题。     

城市公共建筑雨水利用技术分析与探讨

本文通过分析发达国家先进的雨水利用技术,探讨目前在我国推广可持续发展的生态雨水利用技术的必要性与可行性。     

微风将送来更佳的城市环境

一所英国大学发布的公告中说“这听上去可能不怎么样，但是通过大型风道中浓郁的樟脑丸，我们也许能够得到改善城镇空气质量的妙方”。     

灰色系统在大气环境中对TSP浓度的预测

利用灰色系统中GM(1．1)模型对TSP浓度的预测，可以有效地为管理服务．同时也可以证明这一方法对城市区域内TSP浓度的预测准确性较好。     

Study on Simulating Spatial Distribution and Varying Patterns of Urumqi＇s Population

In this paper, an approach to simulate the spatial distribution of urban population is proposed using urban land use and population statistical data through the geographical information systems （GIS）. Then, the spatial population distribution of Urumqi as a case is simulated by the approach mentioned above and its varying patterns are analyzed by the raster population surface. As a result, producing raster population surface is more accurate and natural than the traditional choropleth map of population density. Concerning the spatial population distribution of Urumqi, the population density declines from south to north and the population distribution mainly presents＇ ＂T-type＂, the population distribution presents multicentre agglomeration and the population distribution of the districts shows different features. The population density varies significantly with the increase in the distance from central business district （CBD）. Finally, it is found in this paper that the development history of districts, terrain and traffic road are main factors that have an influence Urumqi＇s population distribution. This paper tries to provide more accurate population data for the plan and management of urban land, traffic and public facilities in order to enrich the researches on urban population distribution.     

关于大庆市建设生态城市的思考

本文阐述了建设生态城市的重要意义及标准,结合实际分析了大庆建设生态城市已有了一定基础,并提出了建设生态城市尚需工作的对策与建议.