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81.
Harvey F. Ludwig 《The Environmentalist》2006,26(3):147-155
Based on some 60 years of consulting practice in the field of environmental/sanitary engineering, about half in the USA and
other affluent industrialized countries (ICs) and half with non-affluent developing countries (DCs), the Consultant summarizes
the lessons leaned on why the technology transfer (TT) operation of the Multilateral Development Banks (MDBs) and other International
Assistance Agencies (IAAs) have failed to achieve effective transfer of appropriate technology to DC practicioners in the
environmental/sanitary engineering field, and presents the Consultant’s recommendations on feasible measures by which MDBs
can significantly improve their TT operations. Eleven specific measures are recommended, all believed to be feasible for use
by MDBs, as follows: (i) post-construction monitoring of project performance, (ii) develop appropriate design criteria for
key infrastructure sectors, (iii) be realistic on O&M expectations, (iv) increase infrastructure project budgets to support
TT, (v) prepare appropriate technology textbooks, (vi) sponsor graduate university programs in appropriate TT, (vii) sponsor
appropriate TT professional journal, (viii) furnish copies of selected 1C references to DC-ers, (ix) sponsor work-type training
assignments in ICs, (x) plan TT projects as series of steps, (xi) utilize ratired IC-ers for peripatetic training in DCs. 相似文献
82.
Self-organization theories and environmental management: The case of South Moresby,Canada 总被引:1,自引:0,他引:1
This article presents a new approach to the analysis and management of large-scale societal problems with complex ecological, economic, and social dimensions. The approach is based on the theory of self-organizing systems—complex, open, far-from-equilibrium systems with nonlinear dynamics. A brief overview and comparison of different self-organization theories (synergetics, self-organization theory, hypercycles, and autopoiesis) is presented in order to isolate the key characteristics of such systems.The approach is used to develop an analysis of the landuse controversy in the South Moresby area of the Queen Charlotte Islands, British Columbia, Canada. Critical variables are identified for each subsystem and classified by spatial and temporal scale, and discussed in terms of information content and internal/external origin. Eradication of sea otters, introduction of black-tailed deer, impacts of large-scale clearcut logging, sustainability of the coastal forest industry, and changing relations between native peoples and governments are discussed in detail to illustrate the system dynamics of the South Moresby sociobiophysical system. Finally, implications of the self-organizing sociobiophysical system view for regional analysis and management are identified. 相似文献
83.
适应气候变化的分析框架及政策涵义 总被引:1,自引:0,他引:1
适应气候变化与发展议题密切相关,这也使得适应成为一个过于宽泛的命题,影响了对适应内涵的理解。首先,本文基于国内外对适应问题的探讨,提出了适应气候变化的基本分析框架,即基于不同发展阶段的适应需求,区分增量型适应和发展型适应,并通过工程性适应、技术性适应和制度性适应三种适应手段增强适应能力。增量型适应是指在系统现有基础上考虑新增风险所需的增量投入,这种适应所针对的是发展需求基本得到满足,仅仅需要应对新增的气候风险所需的适应活动;发展型适应是指由于发展水平滞后,使得系统应对常规风险的能力和投入不足,需要协同考虑发展需求及新增的气候风险。其次,分析了适应的四个基本步骤,即:①评估气候风险及脆弱性;②甄别各种可能的适应对策;③选择可行的适应措施;④推荐"成功"的适应行动。还介绍了相应的社会经济分析方法,如脆弱性评估、社会经济影响评估、适应的成本效益分析等。最后,基于中国适应气候变化的基本需求及优先领域,提出了相应的政策建议,如开发农业适应技术、加强流域综合治理、开展健康风险监测、实施灾害保险计划等。 相似文献
84.
Satisfaction of communities living close to forests with forest management authorities is essential for ensuring continued
support for conservation efforts. However, more often than not, community satisfaction is not systematically elicited, analyzed,
and incorporated in conservation decisions. This study attempts to elicit levels of community satisfaction with three management
approaches of Kakamega forest in Kenya and analyze factors influencing them. Three distinct management approaches are applied
by three different authorities: an incentive-based approach of the Forest Department (FD), a protectionist approach of the
Kenya Wildlife Service (KWS), and a quasi-private incentive-based approach of Quakers Church Mission (QCM). Data was obtained
from a random sample of about 360 households living within a 10-km radius around the forest margin. The protectionist approach
was ranked highest overall for its performance in forest management. Results indicate that households are influenced by different
factors in their ranking of management approaches. Educated households and those located far from market centers are likely
to be dissatisfied with all the three management approaches. The location of the households from the forest margin influences
negatively the satisfaction with the protectionist approach, whereas land size, a proxy for durable assets, has a similar
effect on the private incentive based approach of the QCM. In conclusion, this article indicates a number of policy implications
that can enable the different authorities and their management approaches to gain approval of the local communities. 相似文献
85.
Arable land in Bhutan is under serious threats of land degradation. Proper land management approach is needed to control soil erosion problems. This study is an attempt to characterize and document the conventional and the community-based land management approaches, applied in Chukha and Dagana districts, respectively. The study tried to make a comparative assessment of their social, economic and environmental impacts on the participating farmers. Farmers’ level of participation in the program, implementation of the soil erosion control measures (SECM) and subsequent social, economic and environmental impacts were found to be significantly influenced by the type of approach applied. The study found that community-based approach is by any means better suited for the study sites than the conventional approach. The social, economic and environmental attributes of respondents from the community-based approach were found to have improved significantly as compared to the conventional approach. The community-based approach was thus found to have a higher potential to meet the diverse requirements of rural subsistence farming communities in Bhutan than the conventional approach. 相似文献
86.
Soil erosion in developing countries: a socio-economic appraisal 总被引:12,自引:0,他引:12
Soil erosion is the single most important environmental degradation problem in the developing world. Despite the plethora of literature that exists on the incidence, causes and impacts of soil erosion, a concrete understanding of this complex problem is lacking. This paper examines the soil erosion problem in developing countries in order to understand the complex inter-relationships between population pressure, poverty and environmental-institutional dynamics. Two recent theoretical developments, namely Boserup's theory on population pressure, poverty and soil erosion and Lopez's theory on environmental and institutional dynamics have been reviewed. The analysis reveals that negative impacts of technical change, inappropriate government policies and poor institutions are largely responsible for the continued soil erosion in developing countries. On the other hand, potential for market-based approaches to mitigate the problem is also low due to the negative externalities involved. A deeper appreciation of institutional and environmental dynamics and policy reforms to strengthen weak institutions may help mitigate the problem. 相似文献
87.
我国西北地区退耕地植被恢复基本途径与模式探讨 总被引:4,自引:0,他引:4
杨正礼 《中国人口.资源与环境》2004,14(5):37-41
本文在试验研究,实地考察的基础上,基于中国西部退奈还林还草工程的实背景,现状及研究基础,通过对国外相关实中践进行分析,提出了西北地区退耕地植被恢复的思路和“以封山育林为主,辅之以人工措施”的基本建设,并提出了不同景观立地条件下的56种植被恢复模式。 相似文献
88.
The efficacy of government-supported programs to encourage improved management of land and water systems associated with agricultural land in Australia has been mixed. The broad approach of Australian governments is reviewed briefly. Evidence is presented from case assessments of a program to promote adoption of environmental management systems (EMSs) to improve environmental outcomes from agricultural practices. EMSs are systems implemented to manage the environmental impacts and ameliorate environmental risk associated with business activity. Data are presented on reported EMS activity and experience of four selected groups of farmers in Victoria, south-eastern Australia, representing broad-acre cropping, beef and dairy farming. The pro-environmental behaviours of farmers were mediated through voluntary adoption of government and industry sponsored EMSs, often with financial incentives and other support. Findings from the study were that adoption of EMS practices with sufficient public benefits is unlikely to occur at sufficient scale for significant environmental impact. Farmers more readily adopted practices which were financially beneficial than those which had a positive environmental impact. Although the focus on voluntary market-based instrument (MBI) type programs is popular in western countries, enforcing regulation is an important, but usually politically unpopular, component of land use policy. The comparative advantage of EMSs differed for the industries studied, but overall there were insufficient market drivers for widespread EMS adoption in Australia. Environmental outcomes could be more effectively achieved by directly funding land management practices which have highest public net benefits. Having a clear and unambiguous management objective for a particular land management policy is more likely to achieve outcomes than having multiple objectives as occurs in a number of international programs currently. 相似文献
89.
90.
Frederico Neto 《Natural resources forum》2001,25(4):285-297
Floods were by far the most damaging type of natural disasters during the 1990s, in terms of both human impacts and socio-economic losses. Vulnerability to flooding disasters around the world is almost always differentiated by the socio-economic conditions of different income groups in the disaster area. In general, the poorer the income group (or the country) the more vulnerable it is likely to be to the adverse impacts of floods. The article argues that Bangladesh is the world's most flood-prone developing country in terms of the relative socio-economic impacts of floods. While conventional flood control strategies tend to be based on structural engineering approaches—such as the construction of large-scale embankments, diversion canals and dams—this article argues that more emphasis should be given to alternative, non-structural measures. The main lesson from recent flooding disasters in Bangladesh is that, in the absence of expensive structural measures, many non-structural ones can go a long way towards reducing vulnerability to and mitigating the impacts of floods. 相似文献