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1.
The siting of landfills in peri-urban spaces is seen as both a solution to land scarcity in inner cities and a development opportunity for rural hinterlands. Despite the widespread reliance on landfills for managing urban waste in Ghana, their operation tends to ignite land use conflicts at different scales. However, existing studies on the drivers of these conflicts have mostly failed to situate local resistance within the broader political economy of land control. Drawing on a longstanding landfill conflict in northern Ghana, this contribution shows how under the guise of landfills, the land question in peri-urban spaces is contested. While at face value the landfill struggle appears to be fuelled by the associated poor environmental conditions and health risks of waste from the inner city, our findings reveal the role of diverse incongruities including: (i) the crafty tactics deployed by state institutions in land acquisition for 'public interest', (ii) payment of unrealistic consideration, and (iii) diversion of designated public lands to undeclared uses. Amid these contestations, the notion of territorial belonging by peri-urban communities often runs counter to statutory ordering by the government who hold such hitherto private lands for ‘public interest’. Powerful local actors such as chiefs hide behind community agitations with hopes of controlling land if such contestations materialize. These dynamics have ramifications for the achievement of the New Urban Agenda of Habitat III, which focuses on secondary cities. A sustainable resolution of landfill-related conflicts must therefore begin with addressing the land question in peri-urban spaces.  相似文献   

2.
Building resilience is critical for metropolitan land use planning to strengthen the ability to cope with and minimize climatic disaster risks. Challenges still remain for metropolitan agencies in identifying the components or metrics for measuring resilience. Particularly, uncertainties in climate change and diversification in local contexts compel urban planners to mainstream community participation, indigenous knowledge and local attributes into the resilience assessment. This article aims to propose a novel methodology for assessing resilience, which can encourage stakeholder participation and communicate planners in shaping metropolitan land use policies. Using the Taichung metropolis, Taiwan as the study area, this article created a resilience metric called the Climatic Hazard Resilience Indicators for Localities (CHRIL) that is appropriate for use in a policy context. Then, this metric combined a fuzzy multicriteria decision analysis with a participatory geographic information system approach to measure and map resilience to climatic hazards. Through the participation of experts, local officers and community members, a multivariate analysis was applied to explain why low resilience areas occur in specific locations. Moreover, we performed a cluster analysis to group the areas into several types of resilience and revealed the relationship between the resilience factors and overall local development patterns. Results show that conflicts and tradeoffs may exist between some resilience factors, especially socioeconomic vulnerability and adaptive capacity. The findings provide stakeholders and policy-makers with a better governance structure to design and synthesize appropriate patchworks of planning measures for different types of resilience areas to reduce climatic hazard risks.  相似文献   

3.
This article reflects critically on the impacts of the recent ban on artisanal and small-scale mining (ASM) – low-tech, labour-intensive mineral extraction and processing – in Ghana. Government officials claimed that a ban was necessary because the country’s ASM activities, most of which are found in the informal economy, pose a serious threat to local waterbodies and that security forces were needed for its enforcement. It is argued here, however, that projecting the ban and associated military intervention as actions taken specifically to protect the environment has helped the government escape scrutiny over its choice of strategy to combat illegal mining. Perhaps more importantly, it has masked what may be the real reasons behind these moves: 1) to help the government regain control of the purchasing side of an ASM sector that is now heavily populated and influenced by foreigners; and 2) to put it in an improved position to demarcate parcels of land to the multinational mineral exploration and mining companies that supply it with significant quantities of revenue in the form of taxes, royalties and permit fees.  相似文献   

4.
Current Tanzanian land law offers registration of private interests in land in the form of Certificates of Customary Rights of Occupancy (CCROs) within a broader community lands approach. We conducted qualitative research on the issuance of CCROs along a mountain slope transect in Meru district in northeast Tanzania. This area features intensified smallholder agriculture that evolutionary theory suggests is well adapted for registration of private interests in land. It also features strong customary authorities of the sort that legal pluralism theory suggests may lead to property relations that are not singular and evolving but multiple and co-existing. We found that tenure was highly individualized and local demand for CCROs was expressed in a context of both agricultural intensification and nascent urbanisation. Nevertheless, due to high cost and coordination constraints, this demand did not deliver widespread registration. While CCROs were perceived as useful to resolve land conflicts and put up as collateral for loans, they were not essential as a variety of alternative approaches were in place. In this forum shopping, plurality was not in itself a problem and individuals increasingly chose quasi-formal paper authorisations over customary rituals. Based on our findings, we recommend that land administration systems more explicitly build on existing quasi-formal practice, and that community lands approaches include a diversity of national programmes tailored to different local community circumstances.  相似文献   

5.
The recent increase in underused land, such as outdoor parking lots and vacant areas, is a serious problem that has led to the decline of central areas in Japanese local cities. To develop these land lots, the distribution of underused land as well as factors to transform these areas must be analyzed. However, the secular changes in underused land are not understood quantitatively, and transformation factors have not been analyzed from the viewpoint of underused lot types.In this study, we constructed a database of underused land using housing maps on GIS. Then we analyzed the relationship between the changes in underused land areas and commercial activity in the central areas of 37 core cities. Finally transformation factors from underused land to business-use and residential land were evaluated with an emphasis on the influence of the proximity to a railway station.Between 1985 and 2005, the results show that small areas of underused land have decreased in central areas, but there is a net increase of underused land. Additionally, commercial activity and population have declined in central areas compared to national trends and the average of core cities. Analyses of transformation factors reveal that outdoor parking lots negatively impact the transformation, but the combination of constructing of railway stations close to central areas and adopting land-use zoning for business-use and residential land have a positive affect on the transformation of underused land.  相似文献   

6.
在分析水质型缺水地区节水型社会建设内涵及特点的基础上,以最严格水资源管理"三条红线"为准则,构建包括目标层、准则层、领域层和指标层4个层次结构的水质型缺水地区节水型社会建设评价指标体系,建立基于混沌遗传算法和投影寻踪的节水型社会建设评价模型,并以昆山市为例,评价其节水型社会建设水平。研究结果表明:昆山市2012年、2014年和2020年的节水型社会建设水平均为良好,2025年为优秀,与实际情况及规划目标相符,说明该指标体系和投影寻踪模型具有一定的可操作性及有效性。  相似文献   

7.
Intensification of agriculture and industry in salinized areas poses a risk of secondary salinization. Thus, comprehensive and spatially explicit assessments are needed to assist government in developing ecologically sound policies. Few assessments have comprehensively quantified the impacts of multiple anthropogenic activities on salinization as environmental interferences and salinity autocorrelation are largely neglected. This study tried to perform such an assessment by identifying the nature of human impacts on salinization from three aspects in the Yellow River Delta (YRD) of China. A versatile GIS-based spatial autoregression (SAR) was applied to nine selected explainable variables in six sub-region models. Sub-region model was verified as an effective tool of normalizing environmental interferences because more useful spatial information was provided compared to the whole region model. GIS-SAR model fit better and performed better in quantifying human activities, compared to the conventional ordinary least square regression (OLSR) model, as SAR can deal with spatial autocorrelation in soil salinity. Among the well-defined key determinants, oil exploitation and saline aquaculture were aggregative to salinization but only in originally highly saline sub-regions, such as coastal zone and Gleyic Solonchaks (coastal saline moisture soil) area. Two agricultural activities, crop plantation and fertilization, were mainly ameliorators in most sub-regions. The most effective salinization alleviation occurred in moderately saline sub-regions, such as floodplain and Salic Fluvisols (saline moisture soil) area, which benefitted from the development of agroforests and farm ponds. The SAR sub-region model is spatially explicit for spotting the hazardous areas and some suggestions were also provided for the policy makers.  相似文献   

8.
针对内蒙古自治区特别是黄河流域水资源供给侧存在水资源匮乏,供需矛盾突出;用水效率低,政府投入不足;受传统体制机制制约等问题,分析存在问题的原因,提出补足灌区基础设施薄弱短板,调整用水结构促进经济发展,发挥市场在资源配置中调节作用,落实最严格水资源管理制度等措施。  相似文献   

9.
Blooms of cyanobacteria (Microcystis aeruginosa) are becoming increasingly recurrent in the A Baxe dam reservoir (Galícia, Northern Spain) as a result of increasing levels of different anthropogenic pressues in the Umia catchment. The aim of this study is to develop a model that allows us to detect the spatial level where the main problems that trigger eutrophication occur. We used Mike Basin coupled with Load Calculator to model and visualize spatially explicit results of stream flow and N and P export. The results indicate increase in nitrogen (N) and phosphorus (P) concentrations that trigger eutrophication.High concentrations of nutrients at the Upper Umia derive from livestock, while at the Lower Umia the origin is sewage, highlighting impacts from diffuse pollution and point source pollution in different areas of the basin. Cyanobacteria blooms result from the influence of both contaminant sources, being also triggered by local environmental conditions such as temperature, solar radiation or flow rate. This model will be useful for predicting possible changes, alterations and evolutions that occur in the watershed, that can help ensure compliance with the Water Framework Directive. In addition to the model developed, the results indicate the need for the implementation of management practices in order to reduce the blooms of cyanobacteria (green systems for wastewater in rural areas, riparian forest restoration, etc.). Some sub-basins, such as the Gallo sub-basin, require immediate action since they are major contributors of nutrients to the main river as a result of the low carrying capacity of local waste water treatment plants.  相似文献   

10.
Increased pressure on ecosystems and enhanced competition over the use of natural resources makes it necessary to develop sustainable methods for natural resource management (NRM). However, NRM is a complicated issue. It involves numerous stakeholders, with different needs, resources and perceptions of nature. Stakeholder participation will necessarily be selective, based both on theoretical assumptions about who is a legitimate stakeholder and unevenly distributed power among stakeholders. Although stakeholder involvement is important, sometimes the theory appears to be rather blunt. It has been suggested that, since different categories of stakeholders embody different perceptions of nature, cultural theory could provide important additional criteria for stakeholder involvement. Based on field studies in Naivasha, Kenya, this paper analyses pros and cons of stakeholder analysis and investigates the usefulness of cultural theory for improved stakeholder analysis.  相似文献   

11.
Scholars of environmental governance are increasingly intrigued by issues of scale. Efforts to institutionalise river basin management represent a pertinent exemplar, as they aspire to strengthen hydrological vis-à-vis political–administrative scales of governance. The EU Water Framework Directive (WFD) is one of the most ambitious policy initiatives worldwide to reconfigure water management planning around the hydrological scale of river basins. Whilst it is widely assumed that the WFD is rescaling water governance in Europe, few empirical studies have been conducted to ascertain how far this is the case, what scalar strategies and practices are emerging and to what effect. The paper addresses these open issues with a study analysing the multi-scalar actions of water authorities, water management organisations, local authorities and interest groups involved in implementing the WFD. It investigates how stakeholders are acting scalar from the local to the European scale and back to further their interests in the course of WFD implementation, focussing on the Wupper sub-basin in Germany. Drawing for conceptual insight on the human geography debate on the politics of scale and processes of rescaling, we demonstrate how all relevant stakeholders are increasingly working across scales to advance their interests but in very different ways, with different degrees of deliberation and to different effect. A typology of multi-scalar action is developed to interpret this diversity. The paper draws conclusions on how multi-scalar action is altering not only power relations between the actors but also the scalar configurations themselves.  相似文献   

12.
This article comprehensively examines the impact of integrated pest management‐farmer field school (IPM‐FFS) on yield, insecticide expenditures, labor expenditures, herbicide expenditures, fertilizer expenditures, and profit, based on data from onion producers in the Philippines. Propensity score matching (PSM) and regression‐based approaches that account for potential bias due to selection problems from observable variables are used to achieve the objective of the study. Sensitivity of our IPM‐FFS impact results to potential bias due to “selection on unobservables” was also assessed. We find that farmers who participate in the IPM‐FFS training program have statistically lower insecticide expenditures than the non‐IPM‐FFS farmers. But we do not find any evidence that the IPM‐FFS training program significantly affects yield and the other inputs. There is some evidence indicating that IPM‐FFS farmers may have statistically higher profit levels than non‐IPM‐FFS producers, but these results are sensitive to and may still be invalidated by bias due to unobservable variables. Since IPM‐FFS seem to only significantly reduce insecticide use, policymakers and extension educators may need to adjust the IPM‐FFS curriculum to further emphasize (or include) other agronomic practices that also optimize the use of other inputs like labor, fertilizer, and herbicides. The more efficient use of all inputs would likely reduce total expenditures and eventually translate to higher incomes.  相似文献   

13.
Ongoing debate over water management along the Blue Nile and land degradation in Ethiopia emphasizes the need for efficiency gains in agricultural production through sustainable land management (SLM). However, previous SLM studies overlook the tradeoffs involved in maintaining SLM investments over time. We address this limitation by combining a household survey that evaluates the economic impacts of SLM investments and maintenance, with a hydrological model that explores location‐specific infrastructure effects. We then use a multi‐market model to evaluate the impacts of alternative SLM investments on agricultural production, prices, and incomes over time. Analysis suggests SLM investments must be maintained for at least seven years to show significant increases in value of production, and that terraces on moderate and steep slopes are most effective in increasing agricultural yields. However, the benefits of terracing do not outweigh the cost of foregone off‐farm labor opportunities, nor compensate for lower agricultural prices from increased supply. Thus, SLM investments must be paired with other input and infrastructure investments, as well as subsidies for initial labor costs, in order to incentivize adoption and long‐term SLM maintenance.  相似文献   

14.
The continuity of farming in traditional sloping and mountainous olive production systems (SMOPS) is at risk, especially in marginally productive areas. The abandonment of olive production on sloping lands would have adverse economic, social, environmental and cultural effects. To tackle this risk of abandonment and to improve the sustainability of traditional SMOPS, we propose the Territorial management contracts (TMC) of rural areas. The potential of this instrument to be specifically applied to organic olive production systems on sloping lands is assessed. The paper then summarises the results of a survey of Andalusian farmers in sloping and mountainous areas aimed at identifying key characteristics of the TMC with the potential to enhance its uptake in target farming communities. Results show that farmers are well-disposed towards TMC, and that issues such as flexibility and external advice need to be considered for its successful implementation. From a policy perspective, the instrument is well aligned with the objectives of the last reform of the EU Common Agricultural Policy (CAP).  相似文献   

15.
Loss or degradation of communal lands can have major implications for people’s livelihoods and well-being in rural underdeveloped areas. Mining operations are one driver of land loss with negative implications for people. This study assesses the livelihood effects of open-cast mining on a rural communal land village that lost 8 000 ha of land and compares it to another village nearby that did not. The results suggest that the loss of land and the ecosystem services they provide has negatively affected people’s livelihood strategies and outcomes. On average, only 23 % of households in the affected village had crop fields compared to an adjacent village, that did not lose land to the mine, where 90 % of households had a crop field. This accounts for substantial losses in income through agriculture, both as cash earnings and savings, and negatively affects household food security. As a result of the mine the affected community has also lost access to grazing, and now many households must pay to graze their livestock in other areas. Furthermore, the option to harvest several key natural resources (provisioning services) or non-timber forest products (NTFPs) such as wild fruits and vegetables, edible insects, fuelwood, and to a lesser extent resources like reeds and medicinal plants were lost due to the mine, negatively impacting local livelihoods. NTFPs are important for rural livelihoods as they allow for cash saving, income generation and act as a safety net or fall-back option during times of increased vulnerability. The findings also give a good indication of changes in agriculture and resource use over time and the varying reasons for this. Other negative effects from the mine included; cracking of houses due to blasting, dust pollution, water contamination, social and cultural effects, community alterations and conflicts, and very little was seen to be gained in terms of employment through Social Labour Plans (SLPs) or corporate social responsibility (CSR) initiatives. Households in the village affected by the mine lose approximately R 15 000 per year through losses of agricultural potential and the ability to collect NTFPs, which is larger than the annual cash incomes for most households. This value is likely to be an underestimate of the total value lost, as reductions in grazing potential and the loss of supporting, regulating and cultural ecosystem services were not included in this figure. This study highlights the importance of considering land access and associated land-based livelihoods in rural communal land areas in the context of disturbance and change. Recommendations for future assessments and policy on compensation for rural communities are made and issues relating to CSR are discussed.  相似文献   

16.
The paper describes the facilitated learning process of farmers, its results and implications in addressing the low productivity of Jasmine rice in northeast Thailand using the SRI-FFS approach in a collaborative action research. Other involved included rice traders, millers, researchers, government and non-governmental organizations. Working through an inclusive process of dialogue, observation, diagnosis, experimentation and exposure to different types of innovative agronomic crop management (IACM) practices resulting from the SRI–FFS approach, participants made a thorough analysis of the current management practices and evaluated various IACM practices for their productivity and profitability. The results confirmed the potential of IACM in enhancing crop and water productivity along with soil fertility with relatively low input-use (seed, water and fertilizers) and higher net farm-income compared to existing crop management practices. However, factors such as (i) the age of the farmers and (ii) off-farm employment opportunity are key drivers that affect the crop management decision-making process. Therefore, exploration of value-added production alternatives and favourable policies is required to sustain IACM that can benefit farmers, consumers and the environment. The participation of policy-makers at the action research continuum is essential for effective follow up, scaling up and sustainability of such environmentally sound practices.  相似文献   

17.
Provisioning Ecosystem Services (PS) from the forests contribute much to peoples’ livelihoods as well as to the national economy. Previous studies have been constrained by their primary focus on biophysical quantification of PS through modelling and mapping or aggregated monetary valuation, while little attention has been paid to the issues of the distribution of financial benefits among the different forest subgroups. Using market price and substitute good price methods, this paper assesses how local users exploit financial benefits and emit carbon from the use of PS in two dominant community-based forest management systems (community forestry—CF and collaborative forestry—CFM) based on proximity (nearby vs. distant users) and socio-economic class (rich vs. poor users) in the Siwalik region, Nepal. Results indicated that the wealth level of the users plays a key role in the amount of financial benefits generated from the use of PS: (1) users living near forests receive the highest economic benefits compared to those living long distances from the forest area. However the distribution of benefits differs according to management modality and socioeconomic status; (2) CF users, on average, receive higher economic benefits than CFM users; and (3) compared to poor households, rich households receive higher benefits. On average, a rich household adjacent to CF receives USD 1214/year while a poor household living in the same area receives almost half of that (USD 630/year). Similarly, a poor household living far from a forest area generates USD 189/year, slightly higher than that of a rich household in the same area (USD 109/year); and (4) an average CF user emits more carbon (7.4 tCO2/HH/year) from the consumption of PS than an average CFM user (5 tCO2/HH/year). Finally, we discuss the reasons behind these differences and draw policy implications for developing and refining constitutions and operational plans of forest user groups.  相似文献   

18.
研究目的:新一轮退耕还林补助资金即将到期之际,分析新一轮退耕还林对农户家庭收入的净效应并揭示其内在机制。研究方法:理论上阐述了新一轮退耕还林政策促进农户收入增长的作用机理,基于赣南、鄂北地区农户调查数据,利用倾向得分匹配法进行实证分析。研究结果:(1)无论是否包含退耕补贴,新一轮退耕还林政策对农户收入有正向影响;(2)退耕林种对农户收入的作用机理不同:种植经济林的农户增加了林果业收入和非农经营收入,减少了工资性收入;种植生态林的农户通过提高工资性收入,进而提高总收入水平。研究结论:新一轮退耕还林加快了农户生计转型的进程。政策实施5年后,农户形成与生态环境相适应且稳定的生产方式,为补偿政策的逐步退出创造有利条件,实现了新一轮退耕还林政策的造血功能。  相似文献   

19.
研究目的:探索农民土地所有权认知的动态变化及其内在机理,提出与之相适应的农地制度创新模式。研究方法:文献资料法,统计分析法。研究结果:农民对于土地所有权的认知与法制教育无关,与外部力量的干预高度关联。研究结论:农民土地所有权认知不是现行法律文本意义上的宣传教育的结果,而是农民作为认知主体自主建构土地产权象征意义的过程。新一轮农地制度创新要赋予农民永久期限的土地使用权和对抗外部干预的救济权,以保证农地使用权的长期稳定,促使农民在长期稳定使用权的基础上建构起象征意义的土地所有权认知。  相似文献   

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