关键词： Land use-land cover change impacts   Hydrological modeling   Flood plain and hazard maps   Detention basin  

摘要： Flooding in urban area is a major natural hazard causing loss of life and damage to property and infrastructure. The major causes of urban floods include increase in precipitation due to climate change effect, drastic change in land use-land cover (LULC) and related hydrological impacts. In this study, the change in LULC between the years 1966 and 2009 is estimated from the toposheets and satellite images for the catchment of Poisar River in Mumbai, India. The delineated catchment area of the Poisar River is 20.19 km(2). For the study area, there is an increase in built-up area from 16.64 to 44.08% and reduction in open space from 43.09 to 7.38% with reference to total catchment area between the years 1966 and 2009. For the flood assessment, an integrated approach of Hydrological Engineering Centre-Hydrological Modeling System (HEC-HMS), HEC-GeoHMS and HEC-River analysis system (HEC-RAS) with HEC-GeoRAS has been used. These models are integrated with geographic information system (GIS) and remote sensing data to develop a regional model for the estimation of flood plain extent and flood hazard analysis. The impact of LULC change and effects of detention ponds on surface runoff as well as flood plain extent for different return periods have been analyzed, and flood plain maps are developed. From the analysis, it is observed that there is an increase in peak discharge from 2.6 to 20.9% for LULC change between the years 1966 and 2009 for the return periods of 200, 100, 50, 25, 10 and 2 years. For the LULC of year 2009, there is a decrease in peak discharge from 10.7% for 2-year return period to 34.5% for 200-year return period due to provision of detention ponds. There is also an increase in flood plain extent from 14.22 to 42.5% for return periods of 10, 25, 50 and 100 years for LULC change between the year 1966 and year 2009. There is decrease in flood extent from 4.5% for 25-year return period to 7.7% for 100-year return period and decrease in total flood hazard are

关键词： sustainable development   sustainable city   environmental policy   stakeholder engagement   literature review   statistical and lexical analysis  

摘要： This paper analyses the repertoire of the sustainable city' by conducting a comparative review of the French- and English-language literature. Some use this language for its practical impact regarding urban policies;others criticize it as a tool for legitimizing growth-oriented policies. The article aims at overcoming this duality. Statistical and lexical analyses evidence four main variants of sustainable city' discourses, subject to debate: green city', city of short distances', just city' and participatory city'. They yield four main findings: first, there is no single model of the sustainable city';second, the different approaches are not mutually exclusive, be it conceptually, institutionally, practically or geographically;third, the sustainable city' appears as a genuinely political repertoire - a wide range of actors and institutions act as filters, promoters or detractors;fourth, these situated uses are not fixed but constantly changing, in terms of both contents and procedures. Copyright (c) 2016 John Wiley & Sons, Ltd and ERP Environment

关键词： Proba-V   APEX   NDVI   LAI   hydrological modeling  

摘要： A major challenge in hydrologic modeling remains the mapping of vegetation dynamics in an urban landscape. The impact of vegetation on interception storage varies over time and needs to be quantified in order to enable proper management of water resources in urban areas. However, the heterogeneity and complexity of the urban landscape makes it challenging to monitor urban vegetation. A more detailed spatial and temporal scale is needed. To characterize surface cover at a high spatial resolution, a hyperspectral APEX image (2 m) is used, while a time series of Proba-V images (daily, 100 m) allows a detailed characterization of the seasonal variation of urban greenness. For this study, we use and validate the leaf area index (LAI) maps derived from APEX and Proba-V data for a selected pixel in the Watermaelbeek catchment in Brussels (Belgium). The ground-truthing of the Proba-V pixels includes a detailed mapping of land cover characteristics and more specifically vegetation cover throughout the seasons. LAI values calculated based on the APEX image agree with the LAI values measured from the ground (n = 106, R-2 = 0.68). Further, the aggregated APEX pixels correlate with the Proba-V pixels (R-2 = 0.79), and the Proba-V data can be used to monitor vegetation dynamics. As the seasonal LAI measurements correspond with the Proba-V dynamics, we conclude that Proba-V images allow the characterization of vegetation dynamics at a high spatial resolution in heterogeneous areas. We create a time series of LAI maps at a high resolution (2 m), which allows a location-and time-specific simulation of interception storage and thus contributes to managing water resources in urban areas.

关键词： Flooding   decision support   network graphs   spatial analysis   topology  

摘要： Hydrological infrastructure components such as pumps, floodgates, and flood gauges are invaluable assets for mitigating flooding, which threatens millions of lives and damages property worth billions of dollars in coastal mega-cities around the world. By improving the understanding of how these hydrological infrastructure components are both spatially and topologically connected through waterways (rivers, canals, streams, etc.) within coastal mega-cities, more precise decisions can be made regarding the most appropriate hydrological infrastructure components required to mitigate flooding during emergency conditions. This paper explores the use of graph theory to create a spatio-topological model of a real world hydrological infrastructure network for one of the most representative coastal mega-citiesJakarta, Indonesia. The network is modeled as a directed multigraph, with hydrological infrastructure represented as network nodes and waterways as edges. The article demonstrates how the network model can be used as a real-time decision support tool for responding to flooding events by alerting decision makers to the occurrence of rising water levels in any given area and, suggesting the most appropriate infrastructure components to engage in order to prevent a given area from flooding.

关键词： 城市   精细化管理   哲学   解读  

摘要： 习近平总书记3月5日在参加上海代表团审议,谈到城市治理时强调：坚持以人民为中心的发展思想,着力推进社会治理创新,走出一条符合超大城市特点和规律的社会治理新路子,是关系上海发展的大问题。＂城市管理应该像绣花一样精细。＂本文将主要从哲学的维度对城市精细化管理进行研究和探讨,并以上海市黄浦区为例,为城市的精细化管理提供理论支撑、发展依据及可行性建议。

关键词： 城市   女性写作   欲望   陷落  

摘要： 城市为女性及女性文学的发展提供了舞台,女性文学将女性置于城市社会背景中,展示社会女性的生存困境与精神状态,叩问女性自我追求之旅。城市在为女性提供舞台、营造自由的语境的同时,消费文化的社会背景也将女性推入了欲望与消费的漩涡,使女性再一次面临陷落的危机。

关键词： 城市化进程   都市文学   “70后”   作家   20世纪90年代以来   写作   乡土文学   文学创作  

摘要： 中国社会长期以农耕文明为主，重农抑商的经济形态和自给自足的田园生活催生了乡土文学的繁荣，作为文学创作的主流，乡土文学一直独领风骚，而与之相对的都市文学则因先天不足、后天乏力发展缓慢，既得不到作家们的重视，在文学史上也不占有突出的地位。20世纪90年代以来，随着商品经济大潮的涌现和城市化进程的急剧推进，都市文学得到了迅猛的发展，越来越多的作家在创作中倾心于表现城市生活、反映城市人心态，

关键词： 文学馆   广州   城市形象   羊城品牌  

摘要： 广州文学馆是广州城市形象建构的羊城品牌。它激活广府人的文学梦想,实现传统与现代的对接,助推文化产业创意,引领文化大省建设的龙头;它立足羊城,展现岭南文化特质,又积极拥抱世界,为打造世界文化名城提供智力支持。广州文学馆的建立标举南中国的书写模式,将拓深城市与人、城市与文学的前沿话题,它对于积极拥抱国家"一带一路"战略、塑造和传播广州城市形象,提升城市品位都具有积极意义。

关键词： 都市文学   沈阳师范大学   中国作家协会   《小说选刊》   1951年   文学研究所   文学研究会   北京大学  

摘要： 贺绍俊，男，1951年出生于湖南长沙。1983年毕业于北京大学中文系。沈阳师范大学二级教授，中国文化与文学研究所副所长，中国作家协会全国委员，中国当代文学研究会副会长。曾任文艺报社常务副总编辑，《小说选刊》主编。