城市建设和管理的公众参与问题探讨

改革开放以来,我国城市管理逐渐孕育了公众参与的意识,各地陆续初步探索公众参与的途径和机制,实现城市建设管理代表最广大人民的根本利益。虽然当前公众参与城市管理的重要性已深入人心,但是公众参与的程序性问题如主体、方式、步骤等尚未解决。程序性制度对于健全社区公众参与,推进基层民主建设具有非常重要的作用,不可或缺;没有公众参与的一套规范的程序,就意味着公众参与城市建设还没有确立为一项制度。在一定条件下,这些程序问题无不关系到公众参与制度的成效及其能否持续开展。一、公众参与问题的提出城市管理长期以来始终是政府管理…     

Suitability of biodiversity-area and biodiversity-perimeter relationships in ecology: a case study of urban ecosystems

Urban areas are probably the most fragmented environments with respect to the presence of semi-natural habitats and shape of these habitats may be significantly affected by urbanization. Patch perimeter in landscape or habitat studies is much less popular to study than patch area. The studied sites were situated in the industrial city of Pardubice, which is one of the ten largest cities in the Czech Republic with nearly 100,000 inhabitants. In total, 40 grasslands were studied within a circular area of 314 km². Butterflies and beetles with diurnal activity were studied during timed survey walks. A Simultaneous autoregressive model was used for test of the effect of biodiversity-area and biodiversity-perimeter relationships and for exclusion of potential bias caused by spatial autocorrelation. The models including patch perimeter performed better than those using patch area in explaining species richness, abundance and diversity of investigated organisms and were less influenced by spatial autocorrelation. The main conclusion and recommendation of the present study is that researchers should pay more attention to the possible influence of the patch perimeter as a potential predictor or co-predictor for landscape and habitat studies – especially in urban areas, where the negative effects of fragmentation might be much higher than in rural or more natural landscapes. Performing preliminary tests on comparisons between area and perimeter is highly recommended.     

Sustaining urban development through participation: an Ethiopian case study

Under the Mengistu regime, Addis Ababa was divided into six zones, 28 woredas, and 303 kebeles, the kebeles being the smallest grassroots administrative unit. To enhance community participation, the Kebele 29 Project promoted the establishment of grassroots community groups by dividing the kebele into four zones and 37 neighborhoods. Each neighborhood is represented by a chairperson and a deputy who take responsibility for reviewing the priority needs of households, relaying information between the project and the community, and following up the project interventions. The author considers the sustainability of income-generating activities established as part of many urban development projects instigated by development agencies, the likelihood of inhabitants generating enough income for the upkeep of new or improved infrastructure, and whether the necessary commitment from the community can be created in a situation in which civil organizations have been banned or discouraged. These issues are considered in the context of Oxfam UK/I's involvement in the Kebele 29 Project.     

Community councils as a medium for public participation: a case study in Grampian region

Planning authorities in Scotland are obliged to consult the public before finalising policies and proposals to be included in their development plans. Community councils are intended to operate as ‘the voice of a neighbourhood’ and this paper analyses an attempt by a regional planning authority to use community councils as a vehicle for consulting the public in the preparation of a structure plan for a rural area. The paper concludes that the attempt was unsuccessful because the community councils were not clear about the role they were expected to play; nor were they adequately prepared for their role. The authors believe, however, that the involvement of community councils has potential for promoting greater public participation in the preparation of development plans.     

Ecological resilience in urban ecosystems: Linking urban patterns to human and ecological functions

Urban ecosystems evolve over time and space as the outcome of dynamic interactions between socio-economic and biophysical processes operating over multiple scales. The ecological resilience of urban ecosystems—the degree to which they tolerate alteration before reorganizing around a new set of structures and processes—is influenced by these interactions. In cities and urbanizing areas fragmentation of natural habitats, simplification and homogenization of species composition, disruption of hydrological systems, and alteration of energy flow and nutrient cycling reduce cross-scale resilience, leaving systems increasingly vulnerable to shifts in system control and structure. Because varied urban development patterns affect the amount and interspersion of built and natural land cover, as well as the human demands on ecosystems differently, we argue that alternative urban patterns (i.e., urban form, land use distribution, and connectivity) generate varied effects on ecosystem dynamics and their ecological resilience. We build on urban economics, landscape ecology, population dynamics, and complex system science to propose a conceptual model and a set of hypotheses that explicitly link urban pattern to human and ecosystem functions in urban ecosystems. Drawing on preliminary results from an empirical study of the relationships between urban pattern and bird and aquatic macroinvertebrate diversity in the Puget Sound region, we propose that resilience in urban ecosystems is a function of the patterns of human activities and natural habitats that control and are controlled by both socio-economic and biophysical processes operating at various scales. We discuss the implications of this conceptual model for urban planning and design.     

Developing a framework for stormwater management: leveraging ancillary benefits from urban greenspace

Managing stormwater and wastewater has been a priority for cities for millennia, but has become increasingly complicated as urban areas grow and develop. Since the mid-1800s, cites often relied on an integrated system of underground pipes, pumps, and other built infrastructure (termed gray infrastructure) to convey stormwater away from developed areas. Unfortunately, this gray infrastructure is aging and often exceeds its designed capacity. In an effort to alleviate issues related to excess stormwater, many urban areas across the United States are interested in using green infrastructure as a stopgap or supplement to inadequate gray infrastructure. Green infrastructure and other greenspace promote interception and/or infiltration of stormwater by using the natural hydrologic properties of soil and vegetation. Furthermore, there are numerous ancillary benefits, in addition to stormwater benefits, that make the use of greenspace desirable. Collectively, these ecosystem services can benefit multiple aspects of a community by providing benefits in a targeted manner. In this paper, we present a framework for balancing stormwater management against ancillary benefits of urban greenspace. The framework is structured around the Millennium Ecosystem Assessment ecosystem service categories: provisioning, cultural, regulatory, and supporting services. The purpose is to help communities better manage their systems by 1) allowing stakeholders to prioritize and address their needs and concerns within a community, and 2) maximize the ecosystem service benefits received from urban greenspace.

     

Managing urban wetlands for multiple use: research,restoration, and recreation

Conservation of urban wetland habitat is challenging, because multiple uses must coexist. We use examples from California and Wisconsin to describe potential synergies among recreation, restoration and research activities (the 3 R's). Allowing passive recreation is often essential to garner public support for habitat protection, restoration, and research. In turn, restoration activities can improve the appearance of degraded sites, and designing the work as a research experiment can serve the scientific community. Two projects at Tijuana Estuary support the 3 R's. (1) Oneonta Tidal Linkage is a 0.7-ha tidal channel and salt marsh that was excavated from disturbed upland to bring wetland habitat closer to the Visitor Center (thereby reducing visitor intrusion into natural marsh habitat, where endangered species would be disturbed). It supports an ambitious field experiment that is testing the importance of species diversity in restoration; it also includes a bridge that serves the interpretive program, and it adds 0.7 ha of wetland habitat that helps restore regional biodiversity. (2) A larger excavation (8 ha) of former tidal wetland will soon add wetland habitat, while testing the importance of tidal creek networks in ecosystem functioning and offering views and interpretive opportunities. A third situation, at the 485-ha University of Wisconsin–Madison Arboretum, concerns restored wet prairies, which provide habitat for native species and serve many hikers. Urban stormwater flows into and degrades the Henry Greene Prairie, allowing aggressive plants to invade. Research and restoration efforts are planned to sustain the habitat and recreation functions. These three models suggest that recreation, restoration, and research are compatible uses of urban wetland habitats.     

Approaches to the study of urban ecosystems: The case of Central Arizona—Phoenix

CAP LTER focuses on an arid-land ecosystem profoundly influenced, even defined, by the presence and activities of humans and is one of only two LTER sites that specifically studies the ecology of an urban system. In this large-scale project, biological, physical, and social scientists are working together to study the structure and function of the urban ecosystem, to assess the effects of urban development on surrounding agricultural and desert lands, and to study the relationship and feedbacks between human decisions and ecological processes.Our interdisciplinary investigations into the relationship between land-use decisions and ecological consequences in the rapidly growing urban environment of Phoenix are of broad relevance for the study of social ecological systems and cites in particular. Refinements in our conceptual model of social ecological systems focuses our attention on recognizing the scales and periodicities of ecological and human phenomena, understanding the means and impacts of human control of variability in space and time, and finally an evaluation of the resilience of various aspects of socio-ecological systems especially their vulnerabilities and their potential for adaptive learning.     

Outsourcing public relations pedagogy: Lessons from innovation, management futures, and stakeholder participation

In this article, we advocate for innovation in public relations pedagogy by importing ideas and practices from four areas. The first area involves work on disruptive technology and education that applies lessons from Silicon Valley innovations to high school education. The second area considers how knowledge management and project management findings confirm the value of teaching as the cocreation of knowledge. The third draws parallels between the challenges of moving from traditional to future management and moving from traditional to future education. All three areas offer models for innovation by adopting a more improvisational, experimental, and risk-taking ethos in education. In the fourth area, we shift from theoretical advocacy to look at how these innovations feed into an example of public relations pedagogy as co-created stakeholder participation.     

Vegetation management and benthic macroinvertebrate communities in urban stormwater ponds: implications for regional biodiversity

Urban Ecosystems - Designed ecosystems (e.g., gardens or engineered ponds) are increasingly common components of urban landscapes and contribute valuable ecosystem services. However, management of...     

Connectivity of public urban grasslands: implications for grassland conservation and restoration in cities

An important limitation of studies on the ecological value of urban habitats is the question of habitat connectivity. While connectivity allows spread and genetic exchange of species, isolation can lead to the extinction of populations through inbreeding and loss of genetic diversity. However, while practitioners already start improving urban habitat patches by means of restoration, issues of connectivity have not been taken in account although being crucial for a self-sustaining habitat network. In our study, we evaluate the connectivity of public urban grasslands such as lawns, grasslands in residential areas, playgrounds or parks in the city of Münster, Germany. Employing a graph theory approach, which uses a map (graph) of habitat patches to calculate functional connectivity measures using patch area size and patch connectivity, we studied four groups of different plant dispersal distances (2 m, 20 m, 44 m and 100 m). This approach can be recommended for planning issues due to the output of different indicator values and comparably low data demands. Our results show for the first time, that connectivity of urban grasslands is extremely low for species of short-distance dispersal but slightly increases for long-distance dispersal. Except two larger conglomerations of well-connected patches, urban grasslands were found to be mostly sparsely connected. Thus, future research should focus on options to improve connectivity and to prioritize patches for ecological improvement. The graph theory approach turned out to be a useful tool to analyse urban habitat connectivity but also to illustrate results obtained.

     

Gender,domestic space,and urban upgrading: a case study from Amman

The author discusses an urban upgrading project in the Wadi and Jabal areas of central Amman. These two areas, home to Palestinian refugees from the 1948 and 1967 exoduses, are among the most congested and poor in the central city. The Wadi borders a refugee camp and the Jabal is surrounded by low-income neighborhoods. Through the upgrading project, the state asserted control over every facet of women's lives, addressing most aspects of private and public life in the targeted communities. Women responded in a rally around the notions of domesticity and femininity, effectively managing public agencies and personnel in such a manner that the project was eventually turned to their advantage. Sections consider women in the domestic environment, relationships between women across households, the urban upgrading project, planning to restructure social relations, blurring the private and the public, and women's responses.     

Talking about money: public participation and expert knowledge in the Euro referendum

This paper uses the proposed UK referendum on the single European currency as a means of investigating the effect of democratizing science on the scrutiny of conflicting expert advice. Although the referendum has not happened yet, and may not happen at all, the campaigners for and against the Euro have none the less been working for several years to ensure that if, and when, it does happen they are in a position to win it. By exploring how campaigners on both sides of the debate understand the concerns of voters, the paper shows how they are working towards a referendum in which the political dimensions of the Euro are actively minimized in order to avoid alienating key 'floating voters'. Instead, the campaign is expected to focus on the economic costs and benefits of the Euro for individuals and households, with only limited discussion of issues relating to sovereignty. Whether or not the campaign groups, particularly those that oppose the Euro, can maintain this line remains to be seen but if there is a full and frank public debate about the economic, social and political stakes, then this will be despite the referendum rather than because of it.     

Private lives,public accountability: A case study

Lend a Hand Children's Services is the most prominent provider of family services in rural south central Ohio. The agency is in the process of enlarging its fundraising goals and becoming even bigger in the community. Staff have brought to the attention of the vice president of the board that the board president and the executive director may be involved intimately as a couple. Inasmuch as the board president must evaluate the executive director, the vice president turns to trusted counsel for advice on how to approach the unique problems raised by the situation.     

Learning from weaknesses in teaching about culture: the case study of a Japanese school abroad

This paper examines education for cultural awareness in a Japanese school abroad from the perspective of the teachers. An attempt is made to identify the difficulties which might be encountered by teachers when teaching about the host society and its culture. The paper also examines how this particular school modified its existing approach to better address the dynamic and complex nature of intercultural understanding and exchange.     

Learning about fishery management: Evaluation of a contextualized responsive evaluation approach

This article discusses the extent to which a responsive evaluation (RE) approach contributed to learning by stakeholders in a case of high complexity. Fishery management in Grand-Popo, Benin is characterized by ambiguity, that is contrasting views among fishery stakeholders about what should be done, why, how, where, and when to resolve fishery problems like the depletion of fish-stock and absence of income alternatives. It was also characterized by great gaps (mismatches) between interventionists’ plans and actions, despite generations of interventions and evaluations of their effectiveness. The RE approach aimed at facilitating interactions between interventionists and fishing people to stimulate learning and hence reduce the ambiguity and mismatches. In this article, we take distance and evaluate the results of this action research approach. We found that in the interaction some learning indeed occurred. The fishing people learned among others that intervention resources are limited and that they should organize themselves to lobby for and monitor interventions to solve their problems. Interventionists learned that they could share knowledge about their roles and limited resources with fishing people so that the latter could lobby for more resources. Fishing people however, did not learn to adopt more sustainable fishing practices. Also, interventionists did not learn to influence politicians and financial partners themselves for sufficient resources. Both categories of stakeholders developed ideas for how to collaborate to improve fishery management. We conclude that although some single-loop, double-loop and social learning occurred, the learning was limited and reflect on the related challenges for RE in natural resource management.     

A spatial analysis of indigenous cover patterns and implications for ecological restoration in urban centres,New Zealand

High levels of endemism, the sensitivity of species that have evolved without humans, and the invasion of exotic species have all contributed to severe depletion of indigenous biodiversity in New Zealand. We considered the contribution that urban restoration can make to maximising biodiversity by analysing landcover patterns from two national databases along an urban–rural gradient. Thirteen of 20 land environments in New Zealand are represented in cities, and nearly three-quarters of all acutely threatened land environments are represented within 20 km of city cores nationally. Despite this, remaining indigenous landcover is low within urban cores, with less than 2% on average, but increasing to more than 10% on average in the periurban zone. Threatened lowland environments are most commonly represented within cities, and least represented within protected natural areas. Restoration of existing urban habitat is insufficient to halt biodiversity loss. Ecosystem reconstruction is required to achieve a target of 10% indigenous cover within cities. A co-ordinated national urban biodiversity plan to address issues beyond a local and regional focus is needed. Analysis of national patterns of urban land environments, indigenous cover and remnant ecosystems will support action at a regional and local level while enhancing national and global biodiversity goals.     

Services for urban poor families in Kuala Lumpur, Malaysia: a case study

With 25% of its population living in over 148 squatter settlements, with a high incidence of communicable diseases, teenage pregnancies, and psychological and familial stress, the city of Kuala Lumpur has sought ways to improve conditions. This article describes one particularly promising approach: community-based centers integrating three socioeconomic components--preschool education, maternal and child health clinics, and income-generating activities.