城市绿地系统生物多样性保护的策略探讨

生物多样性是提高城市绿地系统生态功能的前提和城市多样化景观的基础。通过保护自然遗留地,建立绿色生态网络,开发利用地带性物种,尤其是乡土植物,并有节制地引进外域特色樾的,扩大多样性物种的种群增加绿地规模,促进公园和环城绿带的自然化,营造生物多样性高的复层群落结构,形成具有地域性植被征的城市生物多样性格局提高绿地系统的生物多样性。     

Surrender or resistance to the implementation of Local Agenda 21 in Portugal: the challenges of local governance for sustainable development

The aim of this paper is to understand how Local Agenda 21 (LA21) is contributing to update local policy and decision making towards sustainable development in Portugal. Departing from a theoretical view of governance for sustainable development – its core values and challenges – and the role of LA21 in its endorsement, the paper presents the main results of a questionnaire survey submitted to Portuguese municipalities, with the purpose of understanding how far LA21 is being incorporated into planning and management. The paper then tries to expose some of the main potential, limitations and challenges in the local Portuguese case for the short-term sustainable future.     

五论灾害系统研究的理论与实践

作者曾分别于1991、1996、2002和2005年发表了关于灾害研究理论与实践的4篇文章,对灾害系统的性质、动力学机制、综合减灾范式,以及灾害科学体系等进行了探讨.在前4篇文章的基础上,就当前国际上灾害风险综合研究的趋势、应对巨灾行动,以及防范巨灾风险和加强综合减灾学科建设等方面进行了综合分析,阐述了对"区域灾害系统"作为"社会-生态系统"、"人地关系地域系统"和"可划分类型与多级区划体系"本质的认识;区分了"多灾种叠加"与"灾害链"损失评估的差异;论证了"综合灾害风险防范的结构、功能,及结构与功能优化模式";构建了由灾害科学、应急技术和风险管理共同组成的"灾害风险科学"学科体系.研究结果表明,通过综合减灾,防范巨灾风险已成为区域和全球可持续发展的重要措施,这一措施与资源节约型与环境友好型社会的建设,循环经济模式的发展,以及低碳经济模式的建立,共同构成了可持续发展战略实施的支撑体系.     

Accidental Versus Operational Oil Spills from Shipping in the Baltic Sea: Risk Governance and Management Strategies

Marine governance of oil transportation is complex. Due to difficulties in effectively monitoring procedures on vessels en voyage, incentives to save costs by not following established regulations on issues such as cleaning of tanks, crew size, and safe navigation may be substantial. The issue of problem structure is placed in focus, that is, to what degree the specific characteristics and complexity of intentional versus accidental oil spill risks affect institutional responses. It is shown that whereas the risk of accidental oil spills primarily has been met by technical requirements on the vessels in combination with Port State control, attempts have been made to curb intentional pollution by for example increased surveillance and smart governance mechanisms such as the No-Special-Fee system. It is suggested that environmental safety could be improved by increased use of smart governance mechanisms tightly adapted to key actors’ incentives to alter behavior in preferable directions.     

论我国滨海湿地综合性法律调整机制的构建

滨海湿地是我国湿地的重要组成部分,具有多种生态功能。随着风险社会的到来,各种开发利用行为造成滨海湿地严重的环境资源问题,滨海湿地的保护管理和法制建设成为当务之急。法律调整机制是应对滨海湿地问题的各类调整机制中最重要的部分,但我国现行法律调整机制无法有效解决滨海湿地利用中的“公地悲剧”和利益平衡问题,应该根据社会发展的需要,采取行政调整、市场调整和社会调整相结合的综合性法律调整机制。环境治理理论的兴起和我国第三部门的发展为滨海湿地综合性法律调整机制的构建提供了理论依据和社会基础,应该通过发展滨海湿地区域的环保产业、建立生态补偿制度、完善公众参与环境影响评价的途径、构建滨海湿地的社区共管模式,综合运用行政指导、经济激励、公众参与等各种法律手段完善我国滨海湿地的保护管理     

水利水电工程移民补偿的治理机制研究

有效和妥善地解决工程移民的搬迁和安置问题,不仅是水利事业顺利发展的关键,也是预防和减缓社会矛盾的关键.在改革开放时期,移民补偿问题的解决方式是前所未有的.为了解释这种移民补偿方式,本研究以湖南省洪江和碗米坡两个水电站的移民搬迁和安置过程为案例,从治理机制的角度进行分析.研究发现完成移民补偿的治理机制是一种包含了命令、交易、合作的混合机制.水电公司是水能开发的最大受益者,也是移民补偿的责任人,但它并不直接去完成移民补偿,而是将移民补偿的任务用合同的方式外包给市级政府.市级政府分解了从水电公司获得的任务和资金,并用行政命令要求下级政府完成补偿任务.县级政府分配了任务给乡镇政府,乡镇政府再分配任务给行政村.行政村的村委会接受任务后,将补偿资金转交给移民,并用村集体中的合作机制向移民提供耕地、宅基地等资源.这种混合式的治理机制使得移民补偿任务能够按期顺利完成,具有非常强的有效性.     

Protected area governance in Sweden: new modes of governance or business as usual?

This paper explores whether ambitions to open up the traditional Swedish model of top-down conservation methods to local influences are indicative of an actual transition in governance of Swedish national park policy (NPP), and examines whether such a shift entails an increase in local influence over local interests and needs. Methodologically, we analyse a combination of governance types and incorporate theoretical definitions of power and accountability. The establishment of new governance arrangements – where power is shared, interactions promoted and accountability is directed downwards – indicates that Sweden's NPP is undergoing a change in its mode of governance. This change also seems to include ceding some influence to local interests, and the possibility of combining conservation with the utilisation of certain natural resources. The results of our research also provide valuable insights into when the establishment of shared-governance arrangements are likely to succeed; in short, this seems more likely when there are established sectors sited in a robust legal framework and where strong international commitments potentially play a role. In conclusion, we contend that when seeking diversified governance arrangements it is not enough simply to take local practices and customs into consideration – they have to be strengthened.     

Operationalising just sustainability: towards a model for place-based governance

As the concept of sustainability broadens to include social aspects, sustainability organisations must embrace strategies that allow them to more effectively address community issues and procedural concerns. Biosphere reserves (BRs) and model forests (MFs) advocate strongly for community engagement to achieve place-based sustainability; in practice, however, these organisations have had variable success in effectively engaging community residents and addressing their needs and interests. In this paper, we offer a framework for place-based governance for sustainability that is used to compare strategies used in BRs and MFs operating in the Maritime Provinces of Canada with the operations of Vibrant Communities, an anti-poverty organisation that operates locally in Saint John, New Brunswick. We draw attention to three imperatives: comprehensive understanding, community empowerment, and community-based outcomes, and five procedural drivers: local leadership, strong networks, diverse community engagement, learning together, and information sharing. Based on our results, we provide greater clarity on processes that address the imperatives and mobilise the drivers of effective place-based governance for sustainability. Our results suggest that there is a need for theory and practice to advance beyond current understandings of sustainability governance to enhance the capacity of organisations seeking to implement community-based sustainability strategies.     

Local governments in the driving seat? A comparative analysis of public and private responsibilities for adaptation to climate change in European and North-American cities

The division of responsibilities between public and private actors has become a key governance issue for adaptation to climate change in urban areas. This paper offers a systematic, comparative analysis of three empirical studies which analysed how and why responsibilities were divided between public and private actors for the governance of local urban climate adaptation. For 20 governance arrangements in European and North-American cities, the divisions of responsibilities and the underlying rationales of actors for those divisions were analysed and compared. Data were gathered through content analysis of over 100 policy documents, 97 in-depth interviews and 2 multi-stakeholder workshops. The comparative analysis reveals that local public authorities are the key actors, as they bear the majority of responsibilities for climate proofing their cities. In this stage of policy emergence, local authorities are clearly in the driving seat. It is envisaged that local public authorities need to more actively engage the different private actors such as citizens, civil society and businesses through governance networks along with the maturation of the policy field and the expected acceleration of climate impacts in the coming decades.