Sustainability in water resources management: changes in meaning and perception

The meaning of sustainability in water resources management has changed through the time. Initially, meeting water demand was the dominant concern. While later quality issues became more important followed by wider water reuse, today sustainability must include a whole range of aspects (e.g., energy, pollution, persistent chemicals) on various spatial and time scales. New approaches to define sustainability metrics are needed that include three essential elements: the sphere of sustainability, its time horizon and its metric.     

Model-based scenarios of water use in two semi-arid Brazilian states

Sustainability-oriented water management calls for scenarios of future water use. Model-based qualitative-quantitative scenarios combine the development of story lines and the quantification of driving forces with the application of a water use model. In order to support regional planning in two semi-arid Brazilian states suffering from water scarcity, the water use model NoWUM was applied to derive two reference scenarios of municipality-specific sectorial water uses (irrigation, livestock, household, industry and tourism), and to assess the impact of certain interventions. Until 2025, the extension of irrigation accounts for almost 80% of the additional water withdrawals and for an even higher fraction of consumptive use in both scenarios. Domestic and industrial use increases in regions with high immigration, but water use intensities can be controlled by appropriate water pricing. A significant improvement of the developed scenarios is only possible if better data on water use and its driving forces become available. Electronic Publication     

城市生活垃圾的生命周期管理

根据国际标准化组织１９９７ 年颁布的ＩＳＯ１４０００ 环境管理体系“生命周期评价—原则与框架”,本文对可持续城市生活垃圾生命周期管理进行研究,指出城市生活垃圾应在环境可持续性、经济可负担性及社会可接受性的原则基础上,通过垃圾的减量化、无害化、资源化和社会化管理,实现城市可持续发展的管理目标     

Structure of industrial or corporate sustainability programmes

The 15 years up until 2008 have seen an escalating growth in corporate or industrial sustainability programmes to a current level of about 25% of the Fortune 1000 firms. This preliminary study of corporate sustainability programmes yielded a repeatable structure of these programmes that may be unique to industry in the broader sustainability field. These corporate sustainability programmes are different from the prior corporate social responsibility programmes and also are a subset of the vast current use of the word sustainable. The corporate sustainability model is built on four pillars (business excellence, innovation, human contribution and environment) that offer important directions for long-term decision making. In-depth sustainability programme studies revealed recurring principles that reflect current industry or corporate sustainability programmes.     

一般持续发展论（下）

本文比较全面地论述了持续发展的由来、概念、目标和战略要素。作者指出,持续发展的提出反映了人类对自身与环境关系的认识进入新阶段;是既满足当代人和局部需要又不危害后代人和全球满足需要能力的发展,包括一般持续发展论、全球持续性、区域持续性和部门持续性。作者认为,社会福利既包括人造产品也包括自然资本,持续发展的目标在于促进社会福利的增长与公平分配,以及生态系统的持续性;而达到持续发展目标的战略要素则包括经济结构的生态现代化、实行以预防为主的环境政策、经济机制的生态现代化、实行有控制的人口转变以及反贫困。在目标和战略要素的论述中,作者提出了发达和发展中国家(地区)应分别实行强持续性和弱持续性。     

Optimizing a warranty–based sustainable product service system using game theory

Abstract

In recent years, the concepts of sustainability and product service system have been closely associated with each other. In today’s competitive markets, due to Extended Producer Responsibility and customer environmental awareness, producers shift from ‘product-seller’ towards ‘product-service provider’ for using the environmental and economic advantages of coupling a product with services. This paper proposes a novel approach to determine the optimal warranty period and the out-of-warranty replacement period, from the point of view of the producer and the customer to minimise the total cost of usage and end of life of product. As regards the fact that adopted strategies by producers and customers sometimes are in conflict and it affects choosing the optimal product usage period, a game theory model was developed in this study. Finally, a case study with data from chain of local notebook service centres was applied to demonstrate some practical aspects of the developed model.     

Global-scale vs. regional-scale scenario assumptions: implications for estimating future water withdrawals in the Elbe River basin

In this paper, we explore how scenarios of future water withdrawals in a river basin are influenced by scale-dependent quantifications of the driving forces for two global-scale storylines. Either global-scale information or region-specific information is used to do the quantifications. In addition, we analyze the impact of including or not some restricted regional-scale information in the employed water use model. To develop scenarios of water withdrawals in the German part of the Elbe River basin, we applied the modules for domestic, thermoelectric power and manufacturing water use of the global water model WaterGAP, using scale-dependent driving forces scenarios and other scale-dependent model input. In the global-scale quantitative interpretations of the storylines of the IPCC SRES scenarios A1 and B2, all major driving forces of water withdrawals in the basin—population, thermoelectric power production and industrial gross domestic product—show vigorous increases between 2000 and 2025, while from the regional perspective, smaller increases but mostly decreases appear to be plausible. These discrepancies are partly due to the fact that for the global-scale interpretations only the historic developments until 1990 were taken into account, and not until 2000 as in the regional case. The resulting scenarios of sectoral water withdrawals in 2025 differ strongly between the two scale-dependent interpretations of the storylines, with the global one leading to much higher absolute water withdrawals and much lower withdrawal decreases between 2000 and 2025. Therefore, for regional assessments of water withdrawals, we recommend to embed the scenario analysis in global-scale storylines by performing regional-scale quantifications of the global qualitative driving forces scenarios, based on a limited amount of region-specific information.     

可持续发展的“强”与“弱”--从自然资源消耗的生态极限谈起

可持续发展的标准有强弱之分，本文对这两种可持续发展观进行了理论梳理和介绍，以模型分别指出了实现这两种性质的可持续发展必须具备的基本条件，分析表明，忽略自然资源消耗生态极限的可持续发展是一种“弱”性质的可持续发展。     

国内外可持续发展评价方法对比分析

国际、国内很多组织都对可持续性评价方法进行过研究分析,但大多是特定的案例研究.目前国内外对可持续发展评价方法没有一个全面系统的分析比较,使得不同地区比较起来很困难.本文对各种评价方法如环境可持续性指数法、生态足迹法、能值分析法和指标综合评价法的来源、理论和应用作了介绍.得出各方法适用范围:可持续性指数法适合于国家间的综合评价;生态足迹和能值分析法适合于各种范围,包括国家、区域、地区和小系统;指标体系综合评价法对于小范围更合适.同时对各种方法的优势和缺陷进行了分析讨论,得出:可持续性指数法信息量大,但是计算复杂;生态足迹法计算过程简单,但是缺失一些可持续性信息;能值分析法考虑问题全面,但是其原理涉及热力学知识,很难被一些学者认同;指标体系评价法变通性较大,可随着评价系统的变化而进行调整,但是主观性较强.通过分析指出不同方法适用范围并指出每种分析方法的优势和不足,为以后选择合适的分析方法评价对象的可持续性提供依据.     

Experiences with restoration of inland freshwater wetlands in the Netherlands: lessons for science and policy-making

The past decade has seen important changes in the approach to water management issues in the Netherlands. Urban development, recreational demands, agriculture, nature conservation and other space demanding functions compete with water management objectives in their claims for space. An analysis of some recent water management projects illustrates that the implementation of the new water management approach is not always easy. Catchment-based multifunctional projects encounter major constraints. These constraints are: 1) national goals versus local constraints; 2) limited sense of urgency; 3) lack of institutional coordination in the water management community; 4) unclear views over nature conservation, and; 5) limited understanding of wetland functioning in relation to flood risk management. We promote platforms for collaborative planning as a way to improve stakeholder participation in early stages of decision-making. Negotiation and mediation support tools can enable stakeholders and mediators to formulate the problems that need to be addressed more effectively. Early involvement of stakeholders in the planning process is almost a condition for successful implementation; however, it is no guarantee of success, and not all conflicts can be solved. Therefore assessment of the costs and benefits of different parties is important for compensation schemes to gain broad social acceptance.     

Sustainability classifications in engineering: discipline and approach

In order to discuss how to advance sustainability in engineering, it is necessary to be clear as to what exactly is the science of sustainability. The linkage between sustainability philosophy and scientific principles has, in some ways, been acknowledged in the wider literature. Moreover, the recent scholarship on sustainability in international literature has focused on providing definitions, policies and methods, though from an engineering perspective, there is an obvious need for clarity on how the engineering and science community can integrate the science of sustainability into practice. Prima facie, this article provides an overview of the development of sustainability science through a textual analysis to collate the underlying discourse and ideology cited in literature. While the number one sustainability challenge is to mitigate climate change, compiling a definition genesis of sustainability will assist the engineering community in gaining an understanding in the underlying philosophical frames. The aim of this paper is to analyse sustainability information in the print press, journals, periodicals and textbooks since publication patterns contribute to our understanding of the cognitive aspects of scholarly knowledge development.     

ABORIGINAL PEOPLE’S ATTITUDES TOWARDS PAYING FOR WATER IN A WATER-SCARCE REGION OF AUSTRALIA

In Australia, governments are committed to water infrastructure developments that are both environmentally sustainable and economically viable. Consumption-based pricing is seen as a water conservation strategy. This has significant implications for Aboriginal communities, many of which do not pay for water use and experience economic hardship. This paper outlines attitudes towards paying for water use in five Aboriginal communities in South Australia. Inability to pay for services was a common factor hindering willingness to pay for water. While different factors were raised in different communities, most communities believed that water is a ‘cultural right’ that should not be paid for. The research found that strategies such as communication and community involvement in the decision-making processes around water supply are necessary to facilitate cost recovery and to promote water conservation.     

Barriers Beyond the Partners: Bureaucratic and Political Constraints to Implementing Joint Forest Management in Tamil Nadu,India

Whereas past research has treated co-management of common pool resources as if villagers and project implementing authorities were the only relevant actors, numerous external factors beyond the control of these two partners create barriers to successful co-management. This paper draws on discussions with Forest Department officials to examine the influence of these forces on the outcomes of Joint Forest Management (JFM) in Tamil Nadu, India. An empirical inquiry into the operational aspects of JFM indicates the important roles of political parties, powerful people, and other state institutions and functionaries as well as the flow of foreign funding. Further, the strong demand by local people for socio-economic development interventions as opposed to improvement of degraded forests belittles the role of the Forest Department relative to other departments. Numerous other conditioning factors and relationships are explored. The authors call for reforms in public governance to allow better participation of all the actors involved for this participatory management approach to succeed and sustain.     

Land Cover and Use Changes in Relation to the Institutional Framework and Tenure of Land and Resources in Eastern Tanzania Miombo Woodlands

In Tanzania, well-defined land tenure and resource protection apply in forest reserves which account for 30% of forested land, while the remaining 70% (mostly miombo woodlands) are village and general lands with very limited protection. The aim of this study was to determine local peoples ownership rights, knowledge and institutional capacity for sustainable management of resources in forest reserves and general lands. Data were collected using participatory rural appraisal, structured and semi-structured interviews, as well as aerial photographs and landsat images. In general lands, woodlands declined by 50% between 1964 and 1996, bushlands and croplands increased by 599%, and settlements and homegardens increased by 277%. These land use and vegetation structure changes are attributed to harvesting for charcoal production and shifting cultivation. The continued decline in aerial woodland cover in the general lands suggests that common property regimes do not function in the area. Local institutional capacities are weak in enforcing control mechanisms to check the overuse of resources, which tends to approximate open access conditions. The issues of land tenure and village empowerment are not only institutional, but also political in nature. Government institutions should provide and motivate for an enabling environment, including acknowledgement of traditional knowledge, well-defined property rights and operational village by-laws. In order to ensure equity and sustainable development of natural resources, the paradigm shift in management is important whereby communal goods are to be managed for the benefit of the local society.     

Evaluation of sustainability using an integrated approach at process and product level: a case study

The present world is facing problems like rapid depletion of natural resources and undesired environmental changes on a global scale. Manufacturing organisations are realising the importance of mitigating the present crisis and are adopting sustainable manufacturing principles. Since it is important to achieve sustainable manufacturing, sustainability assessment models were developed. Sustainability assessment models have their own drawbacks and may not provide clear scope for complete sustainable development. A system approach has been developed to overcome this shortcoming by integrating various sustainability assessment models that are already in practice. This article reports the advantages of collecting the advantages of individual sustainability assessment models and how the implementation of the integrated approach has helped to identify the current sustainability level and the scope for future developments in an automotive industry.     

Water information: what is it good for? The use of information in transboundary water management

Consistent and relevant information on the status of water systems is indispensable for rational and cost-effective water management. This statement has general validity for all types of river basins, but is particularly relevant for transboundary water regions. Information is used to support decision-making and to evaluate the effects of water resources management decisions. Information production however lags behind developments in water management, which becomes clear from the fact that information still focuses on ecological components of water bodies and largely ignores the importance of socio-economic data stemming from human activities taking place in the river basin. Production of improved information is hindered by strong boundaries between different disciplines that are not easily overcome. Moreover, consideration of information needs and the goals of information dissemination prior to producing information is insufficient and the relevant actors are often reluctant to participate in these processes as they are time consuming. Differences in institutional behaviour also hinder cooperation between institutions, while organisational structures are insufficiently tuned to the needs of the external environment. All these issues hinder the use of information as the basis for decision-making. This paper provides an overview of relevant aspects of information from a broad range of perspectives and establishes the need for changes in the production and use of environmental information in support of water management. The paper is largely based on the outcomes of a closed multi-disciplinary specialist meeting on the role and use of environmental data and information in transboundary water contexts held in Arendal, Norway, September 2002.