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951.
Soil and water conservation (SWC) contests among farmer groups were organized in five rural villages in the Bolivian mountain
valleys. The contests were aimed at quickly achieving widespread sustainable results. This article analyzes the effectiveness
of these contests as an extension tool. Mixed results were obtained. In three villages, participation rates in the SWC activities
introduced in the contests were still high even 2 years after project withdrawal. These were all villages where a solid foundation
for sustainable development had been laid before the contests were held. Two years later, most families were still involved
in maintenance of the SWC practices introduced in the contests, and many farmers had started to experiment with different
soil management practices. However, replications of these SWC practices were not widespread, Conservation Leaders did not
continue with their training activities, and the quality of maintenance of the practices was often not satisfactory. In order
to become a more effective extension tool and achieve widespread impact, SWC contests must receive continued support by a
catalyst agency. Moreover, other SWC contests should also be organized in which practices are not predefined. Given that SWC
contests are a low-budget extension tool, local municipalities could become more actively involved. 相似文献
952.
Community Capacity for Implementing Clean Development Mechanism Projects Within Community Forests in Cameroon 总被引:1,自引:0,他引:1
There is a growing assumption that payments for environmental services including carbon sequestration and greenhouse gas emission
reduction provide an opportunity for poverty reduction and the enhancement of sustainable development within integrated natural
resource management approaches. Yet in experiential terms, community-based natural resource management implementation falls
short of expectations in many cases. In this paper, we investigate the asymmetry between community capacity and the Land Use
Land Use Change Forestry (LULUCF) provisions of the Clean Development Mechanism within community forests in Cameroon. We use
relevant aspects of the Clean Development Mechanism criteria and notions of “community capacity” to elucidate determinants
of community capacity needed for CDM implementation within community forests. The main requirements are for community capacity
to handle issues of additionality, acceptability, externalities, certification, and community organisation. These community
capacity requirements are further used to interpret empirically derived insights on two community forestry cases in Cameroon.
While local variations were observed for capacity requirements in each case, community capacity was generally found to be
insufficient for meaningful uptake and implementation of Clean Development Mechanism projects. Implications for understanding
factors that could inhibit or enhance community capacity for project development are discussed. We also include recommendations
for the wider Clean Development Mechanism/Kyoto capacity building framework. 相似文献
953.
The restoration of degraded systems is essential for maintaining the provision of valuable ecosystem services, including the
maintenance of aesthetic values. However, restoration projects often fail to reach desired goals for a variety of ecologic,
financial, and social reasons. Feasibility studies that evaluate whether a restoration effort should even be attempted can
enhance restoration success by highlighting potential pitfalls and gaps in knowledge before the design phase of a restoration.
Feasibility studies also can bring stakeholders together before a restoration project is designed to discuss potential disagreements.
For these reasons, a feasibility study was conducted to evaluate the efficacy of restoring a tidal freshwater marsh in the
Potomac River near Alexandria, Virginia. The study focused on science rather than engineering questions, and thus differed
in approach from other feasibility studies that are mostly engineering driven. The authors report the framework they used
to conduct a feasibility study to inform other potential restoration projects with similar goals. The seven steps of the framework
encompass (1) initiation of a feasibility study, (2) compilation of existing data, (3) collection of current site information,
(4) examination of case studies, (5) synthesis of information in a handbook, (6) meeting with selected stakeholders, and (7)
evaluation of meeting outcomes. By conducting a feasibility study using the seven-step framework, the authors set the stage
for conducting future compliance studies and enhancing the chance of a successful restoration. 相似文献
954.
An assessment of Spain's Programa AGUA and its implications for sustainable water management in the province of Almería, southeast Spain 总被引:1,自引:0,他引:1
Spain's Programa AGUA was proposed in 2004 as a replacement for the Spanish National Hydrological Plan and represented a fundamental policy shift in national water management from large inter-basin water transfers to a commitment to desalination. Twenty-one desalination facilities are planned for six provinces on the Spanish Mediterranean coast to supplement their water needs. These include the province of Almería that for the last 30 years has endured a net water abstraction overdraft leading to serious reservoir depletion and groundwater imbalances. Rising water use is a result of increasing demand to support irrigated agriculture (e.g. greenhouse horticulture) and for domestic needs (e.g. rapid urban growth and tourism development), which has led observers to question Almería's long-term water sustainability. Desalinated water alone is unlikely to be sufficient to make up these water deficits and water-users will have to accept a move to full-price water recovery by 2010 under the European Union (EU) Water Framework Directive of which Spain is a signatory. Anticipated water efficiencies resulting from higher water tariffs, increasing water reuse and water infrastructure improvements (including inter-basin transfers), in conjunction with increasing use of desalinated water, are expected to address the province's current water overdraft. However, Almería will need to balance its planned initiatives against long-term estimates of projected agricultural and domestic development and the environmental consequences of adopting a desalination-supported water future. 相似文献
955.
The paper explores the role of a participatory approach in the outcome of the Finnish sustainable development indicator (SDI) exercise in 1998-2002. The process is analysed through three main objectives: to achieve stronger democracy, better quality of the end product and a more effective process. The analysis is further structured by a set of criteria needed for successful participation and differentiation of types of participants. The criteria comprise three main aspects: fairness, competence and social learning. In addition to the normally mentioned stakeholders (e.g. citizens and interest groups) participants also include experts and civil servants. Using the set of criteria above the participatory approach of the Finnish SDI process is then evaluated, and in the light of this evaluation the paper also discusses the specifications needed as evaluation criteria for national level policy programme processes like developing the SDIs. The results are based on documentation of the indicator task force meetings, written comments and a study of the putative end-users conducted after the publication of the indicators. The results show that the intense and broad participation of experts and civil servants increased the competence of the outcome and led to greater efficiency in working methods. However, this led to technocratic participation, absence of democratic participation and absence of social learning. Thus the ultimate goal of SDIs to contribute to achieving sustainability was not reached. 相似文献
956.
南京市城市污泥和工业污泥中典型矿质元素含量和形态分布研究 总被引:1,自引:0,他引:1
采用三态连续提取法研究南京市部分城市污泥和工业污泥中典型矿质元素的含量和形态分布,为污泥资源化的合理利用提供科学参考.结果表明,污泥总体呈高有机质、高氮磷、低K的相似性,但其理化性质如阳离子交换容量(CEC)、pH等有差异.污泥中不同矿质元素含量差异也较大,Fe的浓度最高,其次是Mg、Zn;且不同污泥间同一矿质元素含量的差异也较大.各元素的形态分布有一定差异,Cu主要分布在可氧化态,其酸溶/交换态和可还原态的百分率很低;Zn三态分布均较高;Mg、Mn主要分布在酸溶/交换态;Fe主要分布在残渣态.但三种提取形态百分率之和除Fe外均超过50%.研究同时表明,城市污泥和工业污泥中矿质元素形态分布无显著性差异. 相似文献
957.
- DOI: http://dx.doi.org/10.1065/espr2006.02.294
Background, Aim and Scope. To better address the requirements of the changing multilateral order, the United Nations Industrial
Development Organization (UNIDO) Cleaner Production Programme, in 2004, developed the new Sustainable Industrial Resource
Management (SIRM) approach. This approach is in accordance with the principles decided at the United Nations Conference on
Environment and Development (UNCED) in Rio de Janeiro, Brazil in 1992. Unlike the traditional approaches to environmental
management, the SIRM concept captures the idea of achieving sustainable industrial development through the implementation
of circular material and energy flows in the entire production chain and reduction of the amount of material and energy used
with greater efficiency solutions. The SIRM approach seeks to develop new models to encourage a shift from selling products
to supplying services, modifying, in this manner, the supplier/user relationship and resulting in a win-win situation for
the economy and the environment. Chemical Leasing represents such a new service-oriented business model and is currently being
promoted by UNIDO′s Cleaner Production Programme.
Main Features. One of the potential approaches to address the problems related to ineffective use and over-consumption of
chemicals is the development and implementation of Chemical Leasing business models. These provide concrete solutions to the
effective management of chemicals and on the ways negative releases to the environment can be reduced. The Chemical Leasing
approach is a strategy that addresses the obligations of the changing international chemicals policy by focusing on a more
service-oriented strategy. Mexico is one of the countries that were selected for the implementation of UNIDO's demonstration
project to promote Chemical Leasing models in the country. The target sector of this project is the chemical industry, which
is expected to shift their traditional business concept towards a more service and value-added approach. This is being achieved
through the development of company specific business models that implement the above-indicated Chemical Leasing concept with
the support from the Mexican National Cleaner Production Centre (NCPC).
Results and Conclusions. The implementation of Chemical Leasing in Mexico has proven to be an efficient instrument in enhancing
sustainable chemical management and significantly reducing emissions in Mexico. Several companies from the chemical industrial
sector implement or agreed to implement chemical leasing business models. Based on the positive findings of the project,
several Mexican companies started to negotiate contents of possible Chemical Leasing contracts with suitable business partners.
The project further aimed at disseminating information on Chemical Leasing. It successfully attracted globally operating companies
in the chemicals sector to explore possibilities to implement Chemical Leasing business models in Mexico. At the international
level, the results of the UNIDO project were presented on 20TH September 2005 during a side event of the Strategic Approach
to International Chemicals Management (SAICM) Preparation Conference in Vienna.
Recommendations and Outlook. To facilitate the promotion and application of Chemical Leasing project at international level,
UNIDO is currently developing a number of tools to standardize Chemical Leasing projects. These include, among others, Chemical
leasing contract models; Chemical Leasing data base to find partners for chemical leasing; and guidelines to implement Chemical
Leasing projects and work programmes. 相似文献
958.
The recently-adopted global Sustainable Development Goals (SDGs) will have significant implications for national development planning in both developed and developing countries in the post-2015 period to 2030. Integrated, nationally-owned SDG strategies will be at the centre of national efforts to implement the new sustainable development agenda. The long-run processes and systems perspective that are inherent in the SDGs present complex analytical problems for policymakers and analysts. Scenario analysis and quantitative modelling will be important analytical tools to support national sustainable development planning, and there is an increasingly sophisticated suite of models available to decision makers. This paper reviews and assesses a broad range of different quantitative models that have the potential to support national development planning for the SDGs. The study develops a typology and inventory of 80 different models, and then reviews the comparative strengths, weaknesses and general utility of different models through an initial screening and subsequent multi-criteria analysis of short-listed models. Current gaps in model capabilities are highlighted in the context of providing analytical support for national development planning for the SDGs. While some existing models are particularly relevant, it is unlikely that an ideal model can analyse all SDG targets and variables of interest within a single modelling framework. Top-down ‘macro framework’ models are likely to be more useful for undertaking system-level or economy-wide scenario analysis driven by the national long-term goals and targets, and for exploring trade-offs and synergies among sectors. Bottom-up sectoral models will be able to support far more detailed option-level impact analysis of concrete interventions, technologies and investments. Combining both approaches within an analytical framework will provide a robust approach for analysis and decision-making. The results highlight a range of potential gaps in current modelling capabilities, and provide some new tools to assist with model selection. 相似文献
959.
Stakeholder participation is considered a key principle for sustainable development in the context of natural resource and disaster risk management. Participatory modelling (PM) is an interactive and iterative process in which stakeholder involvement is supported by modelling and communication tools. Planning and decision-making for sustainable development (SD)integrate three substantive dimensions − social, ecological and economic. The procedural dimension of SD, however, is equally important, and here we see great potential for PM. In this study, we evaluate five PM research projects against criteria for the procedural dimension of SD. This provides a basis for identifying key issues and needs for further research into PM for SD. While the cases show great potential, especially for supporting knowledge integration, learning and transparent handling of values and perspectives, they indicate a particular need to develop PM in respect of organizational integration. This issue is closely connected to the possibility of effectively implementing PM in practice. 相似文献
960.
C. A. Kessler 《Environment, Development and Sustainability》2008,10(2):233-247
In Bolivia, recent decentralisation policies have broadened the participation of local actors in development processes. However,
development is far from sustainable, and poverty and natural resources degradation still increase. The challenge is to develop
strategies that achieve the genuine participation of poor farmers in natural resources management and sustainable development.
The logical strategy, which was developed and validated in five Bolivian mountain villages, is an example. In this strategy,
first a solid foundation for sustainable development is laid, with activities focussing on five basic conditions for sustainable
development in rural villages: leadership and organisation, responsible participation, effective collaboration, mutual trust
and environmental awareness. The results show that the existence of a solid foundation is crucial for the success of other
development activities, such as soil and water conservation activities. However, given that 2 years after the project’s withdrawal
the firmness of the foundation had slightly weakened, it was concluded that a better integration of these villages in local
development processes is essential to profit from the new dynamics. This is especially true for soil and water conservation.
To achieve this integration, municipalities—with the support of international development agencies—must be encouraged to invest
in laying this solid foundation in rural villages and in facilitating follow-up activities to keep the dynamic process going.
This study shows that such investments result in better organised villages, more equality, and the genuine participation of
more people in sustainable village development. Effective collaboration and accountability at institutional level are, however,
required. 相似文献