共查询到19条相似文献,搜索用时 187 毫秒
1.
2.
3.
4.
为解决城市交通“停车难”问题,对中心城区内停车场分布情况进行分析。以天津市为例,通过高德开放平台获取城市POI数据,利用GIS强大的空间分析与数据处理功能,对城市停车设施空间分布特征进行宏观、微观层面分析。在宏观层面,分析天津市中心城区范围内停车设施分布特征;在微观层面,针对停车设施服务水平进行分析。这样能够较好掌握现状城市停车设施整体空间分布与服务水平,从而为停车专项规划提供技术支撑。研究方法对其他城市也具有借鉴意义。 相似文献
5.
6.
7.
8.
基于遥感影像,通过ARCGIS10.2统计分析天津市各区、各街道公园绿地的空间分布,提取全市综合性公园与区域综合性公园,建立步行、自行车、地铁与小客车四种出行方式的缓冲区,进一步分析不同出行方式下公园绿地的服务公平性与便捷性。 相似文献
9.
10.
11.
12.
13.
Alan Cooper 《Landscape and urban planning》1995,31(1-3)
Comparison of the scaled hierarchical structure of a multivariate land classification of Northern Ireland, with land class ordinations based on field-derived land cover, has been made. Land class distribution on the land cover ordination was reflected in the hierarchical structure of the land classification. This correlation contributes to a validation of the land classification as a sample stratification for landscape ecological survey.Land class ordination gave insight into the distribution of ecological resources in the landscape. Upland land classes showed the greatest degree of separation, indicating a greater heterogeneity of land cover compared with the lowlands. The lowland land classes showed much less spatial separation on the ordination, a characteristic that probably relates to agricultural intensification.The distribution of the lowland land classes on the ordination was correlated with climatic, geological and landform gradients. This indicates regional differences in the farmed landscape and demonstrates the value of the land classification for stratifying landscape ecological survey and developing countryside management strategies. 相似文献
14.
本研究运用1990年代天津市外商投资的抽样数据,通过GoldenSoftware软件建立二维、三维空间模型,重点分析了天津市外商投资的空间分布的若干特征:外商投资选址与城市工业园区以及机场、港口等大型基础设施密切相关;第二、第三产业外商投资分布分别呈现轴向、圈层规律;动态空间上有扩散——集中——扩散的趋势;外商投资在中心城区总体呈现中心—外围递减规律,并且指出这些特征体现了新兴工业国家大城市处于工业化的发展期或高速发展前期的空间特点。 相似文献
15.
利用2003~2005年的相关统计数据,对房地产市场发展程度进行等级划分,运用属性数学模型对天津房地产市场的发展阶段进行研究判别,完善评价指标的等级划分。结果表明:天津房地产市场正在健康发展,但其发展还不稳定。 相似文献
16.
The present work is concerned with the development of methodological procedures for studying the spatial distribution of eutrophication in the marine environment. Seven ecological indices (S, number of phytoplankton species; N, total number of individuals; D(Mg), Margalef's index; D(Mn), Menhinick's index; D(Od), Odum's species per thousand individuals; H', Shannon's Diversity index; E, Evenness index), based on phytoplankton community data collected from Saronicos Gulf, Greece were used for describing the eutrophication state of the sea environment. A representation of the spatial distribution for each ecological index was developed using the Inverse Distance Weighted (IDW) interpolation method. A eutrophication scale for each index was also developed for indicating four different trophic levels in the marine environment (eutrophic, upper-mesotrophic, lower-mesotrophic, oligotrophic); categorization of the interpolated values of each index resulted in a clear illustration of these trophic levels on seven thematic maps. Two methodological procedures were finally applied for synthesizing the information of these thematic maps. The purpose was the development of a final map illustrating the spatial distribution of eutrophication in the study area. The first procedure was based on the integration of unsupervised and supervised classification methods, widely used in the field of remote sensing, while the second one on the overlay technique, simply carried out within the frame of a Geographical Information System (GIS). The hybrid unsupervised/supervised classification method can assess the optimal number of classes in which data values from simultaneously considered parameters could be allocated, while the overlay technique is an additive procedure not taking into account existing trends in the dataset. The advantages and disadvantages of each procedure are further discussed. 相似文献
17.
18.
This field study was performed during the winter of 2000–2001 in order to investigate the thermal environment and thermal comfort in residential buildings in Harbin, northeast of China. A total of 120 participants provided 120 sets of physical data and subjective questionnaires. An indoor climate analyzer and a thermal comfort meter made in Denmark were used to collect the measured parameters of the indoor environment, the predicted mean vote (PMV), and predicted percentage of dissatisfied (PPD). The conclusions are as follows: males are less sensitive to temperature variations than females; the neutral operative temperature of males is 1 °C lower than that of females; Harbin subjects are as sensitive to temperature variations as the Beijing and Tianjin subjects; the minimum value of PPD (7.5%) is similar to the Tianjin occupants; both the sensitivity and the minimum value of PPD are lower than those of the foreign field studies. 相似文献
19.
从空间—行为关联视角出发,以天津市西北角回民社区街道为研究对象,运用行为注记、问卷与访谈等方法进行实地调研。基于调研数据分析,总结社区街道各类空间的构成特征,并利用代表性空间内行为研究数据,从人群行为、空间类型分析各类空间中行为与空间要素的关系,进而提出街道空间的微更新原则。以此为切入点从“保留”与“改造”2个层面提出社区街道空间优化策略,并探讨参与式更新模式,为城市更新提供参考与依据。 相似文献