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1.
As a result of landslides and soil erosion, a substantial amount of soil has been lost in Turkey. Particularly, fertile lands have long been faced with the threat of erosion, largely as a result of traditional (unplanned) land use practices. This threat is more evident in the Black Sea Region with its rough topography and rainy climate. The basic reason for this threat is the lack of organization in land use planning and control. Although proposals, in the context of this requirement, are included in national development plans, they have not been implemented. Accordingly, in this study research based on spatial data evaluation was carried out for Sera Lake located in Akcaabat, Trabzon, Turkey. For this purpose, temporal area, depth and volume changes of the lake were determined by utilizing topographic maps, aerial photographs and hydrographical measurements. To evaluate determined changes in the size of the lake and to produce suggestions to legislators for required sustainable land management activities, information on land use/cover types, land ownership and climate in the vicinity of the lake was utilized. As a result, it was determined that the area, depth and volume of the lake were significantly decreased during the last decades, as a consequence of erosion mainly caused by traditional land use practices; thus, the lake is threatened with the danger of extinction due to erosion. Precautions required for the alleviation of erosion and other adverse environmental effects which largely seem to be caused by harsh physical properties (caused basically by topography) of the region were discussed. In support of the information inherent to the region, traditional arable land use was logically determined as the basic non-natural factor (which is directly prone to erosion) to be rearranged in the context of sustainable land management. In this context, beyond nationwide actions (national agricultural policy and Soil Protection and Land Use Law), which may provide the required land management tools in the long term, it is proposed that planning and accordingly land management activities specific to the study area (Sera Valley) should immediately be commenced in close collaboration with the related public (owners or farmers). However, behaviours of different types of land users (engaged in commercial, subsistence and semi-subsistence farming) and also high number of owners and/or farmers (caused by small pieces of land parcels owned/used in shares) make the desired collaboration almost impossible. This socio-economical problem may be solved by further developing the current land registry and cadastre system in terms of customary land use rights, land use/cover changes and updating procedures.  相似文献   

2.
Since attainment of independence, almost every country in East and Southern Africa has introduced some kind of land reform aimed at reconciling indigenous land tenure practices and those introduced by colonial regimes. The reforms have centred on modification of tenurial rules on access, ownership, administration and transfer of land rights coupled with land redistribution and/or restitution in some countries. With the exception of a few countries, such as Botswana, land reforms have largely remained on statute books with little to show on the ground. The paper gives an overview of land reforms in East and Southern Africa, taking Botswana as a case study. It notes that although Botswana has largely been successful in implementing land reforms, it is currently experiencing land tenure problems, especially in peri-urban settlements and inner city low-income areas, despite government's enhanced control over local land administrative structures. The paper ends with suggestions on how to contain the current problems.  相似文献   

3.
Degradation of land continues to pose a threat to future food production potential in many developing economies. Various approaches, mainly based on command‐and‐control policies, have been tried (with limited success) in the past to encourage adoption of erosion‐control practices by farm households. High transactions costs and negative distributional impacts on the welfare of the poor limit the usefulness of standards and taxes for soil and water conservation. One innovative approach is the use of interlinked contracts which create positive incentives for land conservation. This study analyses the social efficiency of such policies for erosion‐control in the Ethiopian highlands using a non‐separable farm household model. Incentive contracts linked with conservation seem to be promising approaches for sustainable resource use in poor rural economies. This may suggest that conservation programs should give greater consideration to better fine‐tuning and mix of policies that help achieve both economic and environmental objectives.  相似文献   

4.
Africa has become the most targeted continent for large-scale agricultural land investments (LALIs) with over 60% of the global figure. Some efforts have been made to investigate the determinants of LALIs at the global level; however, scare evidence abounds regarding the characteristics of target communities in a given country particularly in Nigeria, one of the top 20 recipients of LALIs globally. This study contributes by showing how community characteristics influence the likelihood of receiving LALIs and the aspects of such community characteristics that matter. Utilising community-level data in Nigeria and estimating with probit model, some findings are made. Unexpectedly, the indicators of local institutions in the communities do not exert significant influence on the likelihood of LALIs occurrence. This supposes that the local institutions are rather overwhelmed by the state. How the local institutions can be integrated for LALIs are suggested.  相似文献   

5.
Importing terrestrial biocapacity: The U.S. case and global implications   总被引:1,自引:0,他引:1  
Human societies depend for their survival on goods and services provided by both local and global ecosystems. For most of history, people used mainly local resources. Increasingly, however, globalization and trade enable consuming populations everywhere to support themselves on the output of distant ecosystems. This is potentially problematic because of global change and because the spatial separation of material production (including resource exploitation) from consumption eliminates the direct negative feedback that normally occurs when people dependent on local ecosystems degrade those ecosystems. With spatial separation comes psychological separation. Modern consumers remain generally unconscious of their growing reliance on biophysical goods and services produced half a world away and see no connection between their consumer lifestyles and distant ecological consequences. The purpose of this paper, therefore, is to raise a cautionary flag about unfettered trade and to show the value of accounting for trade-related physical flows and their impacts on natural capital in sustainability analyses. Using the United States as an example, we present an analytical method that can locate and measure the ecosystem area embodied in any population's imports of renewable resources. We quantify U.S. imports from specific countries around the world; we estimate the area of terrestrial ecosystems in those countries devoted to consumers in the U.S. and we highlight both increasing U.S. imports and their potential impact on extra-territorial ecosystems. This method creates indirect (conceptual) feedback between consumption and ecosystems integrity which we hope will partially replace the physical feedback neutralized by globalization. Such analyses can help generate public and decision makers’ awareness of both their dependence and their impacts on, distant natural capital stocks. This in turn should increase interest in establishing improved co-management regimes to maintain the stability and reliability of such now obligatory relationships.  相似文献   

6.
Water stress and soil infertility are the greatest constraining factors for higher agricultural productivity in drylands, prompting the current interest in soil and water conservation (SWC) practices in water-constrained regions. To provide a more comprehensive understanding of challenges surrounding the adoption of SWC practices in these regions, we used a joint analysis framework combining both multivariate and ordered probit models to analyze adoption-decisions for eleven on-farm SWC practices. Our case study, involving 500 farmers from a representative West African Sahelian zone, revealed that although the adoption of SWC practices is widespread in the West African drylands, there is still an important potential to improve and upscale their specific adoption rates. Almost all farmers (99%) used at least one of the eleven practices considered in this study, whereas specific adoption rates ranged from 5% for contour vegetation barriers to 87% for manure application. More than 70% of the farmers used up to three practices only, and less than 30% used between four to nine practices. Many practices are interdependent, with some practices being complementary and others substitutable. The analysis of the determinants of the adoption and the intensity of adoption revealed that SWC practices are labor-, knowledge- and capital-intensive. We found that the major drivers of farmers’ decisions to adopt, as well as to intensify the use of, most SWC practices are the presence of children (aged 6 to 14) in the household, land holding, land tenure, awareness and training on SWC and access to alternative – but non-agricultural labor constraining – cash sources such as remittance and cash farming. A higher number of migrating household members increases the probability of intensifying the use of SWC practices, but only when this is in line with the household’s land endowment and labor needs for farm activities. This comprehensive study will be of significance for a finer understanding of SWC practices in West African Sahel. More generally, it will likely help policy makers to upscale the adoption of sustainable SWC practices for the advance of climate-smart agriculture in developing drylands.  相似文献   

7.
A right of commoners to pastures existed since the Early Middle Ages in Anglo-Saxon England and the European mainland, including Tyrol in Austria. Lowland commons institutions were largely dissolved by the 19th century; however, in the European Alps contiguous commons remain alive. Some two thousand alpine commons institutions are registered in the Tyrolean parcel cadaster and land registry. A specific study of West-Tyrolean commons (known as Agrargemeinschaft or AGMs), framed by Ostrom's design principles is presented. General lessons for land policy and land administration are extracted. An interview period was split between the Inn valley and the Ötztal. Roughly half are considered independent: others are regulated by the Tyrolean Agricultural Authority. Some AGMs hold the full bundle of land rights: others only hold pastoral and forestry rights. AGMs consisted either of a single cadastral parcel or several contiguous parcels. In the Inn valley villages the pastoral commons were owned by the municipalities, while in the researched Ötztal, AGMs are frequently the full owners of the commons. AGM membership ranges between 5 and 60 farm households. The number of livestock units pastured was in most cases stipulated in approved regulations. Alpine commons larger than 200 ha are also hunting-zones: revenue is collected from the lease of hunting rights. Most of the alpine commons are designated and used as ski-zones. Upper portions of two alpine commons in the Ötztal are state protected natural areas. The number of farms with pastoral rights is declining at District and State level. Key lessons for land policy and land administration include: Ostrom's design principles being a precondition rather than a panacea; commons institutions requiring one clear ownership party; both public and collective ownership producing success; publically owned commons requiring a local representative; small membership numbers being preferable; small shareholdings not being preferable; decentralized governance being beneficial; internal democratic elections being beneficial; internal boundary records being superfluous; explicit sanctions being superfluous; mixed economies being acceptable; and geography being a significant influence on the longevity of pastoral commons.  相似文献   

8.
This paper reports results from a study of resource degradation and conservation behavior of peasant households in a degraded part of the Ethiopian highlands. Peasant households' choice of conservation technologies is modeled as a two-stage process: recognition of the erosion problem, and adoption and level of use of control practices. An ordinal logit model is used to explain parcel-level perception of the threat of the erosion problem and the extent of use of conservation practices. Results show the importance of perception of the threat of soil erosion, household, land and farm characteristics; perception of technology-specific attributes, and land quality differentials in shaping conservation decisions of peasants. Furthermore, where poverty is widespread and appropriate support policies are lacking, results indicate that population pressure per se is unable to encourage sustainable land use. The challenge of breaking the poverty-environment trap and initiating sustainable intensification thus require policy incentives and technologies that confer short-term benefits to the poor while conserving the resource base.  相似文献   

9.
Central governments have neither the capacity nor the local knowledge to implement a just, large-scale national land registration system. Support to local institutions to undertake intermediate forms of land registration has been shown to be far more effective in many places—although these need careful checks on abuses by powerful local (and external) interests, measures to limit disputes (too many of which can overwhelm any institution) and measures to ensure that the needs of those with the least power – typically women, migrants, tenants and pastoralists – are given due weight. These locally grounded systems can also provide the foundation for more formal registration systems, as needs and government capacities develop. Even if there are the funds and the institutional capacity to provide formal land title registration to everyone in ways that are fair and that recognize local diversity and complexity, and could manage disputes, this may often not be needed. For the vast majority of people, cheaper, simpler, locally grounded systems of rights registration can better meet their needs for secure tenure.  相似文献   

10.
Construction land plays a vanguard role in China’s rapid urbanization process. However, confront with massive loss of farmland resources, the highly centralized land-use planning and management system established by the central government in 1998 stipulates that the red line of 1.8 billion mu of farmland should be guarantee to ensure food security. A series of land management system innovations such as “the replacement of basic farmland in different places”, “the compensated supplement of farmland in different places”, and “the land conversion quotas transregional transaction” in Zhejiang province have received increasing attention, under the premise that neither dissipating the economic development efficiency nor breaking the constraints of various planning quotas. Inspired by the “three-phase” efficiency improvement based on the concept known as the “adaptive efficiency”, this article first proposes the inherent policy shortcomings as incalculability, inseparability, and uncontrollability. Then, adopting the mathematical model derivation and economic analysis tool, we demonstrate that the “general allocation + competition allocation + rewarded allocation” of new construction land quota allocation scheme has improved the three-stage Pareto efficiency. Relying on the network analysis of the cross-regional trading in Zhejiang province, the “time hotspot”, “regional hotspot”, Siphon effect, price fluctuation and inequality of opportunity are also observed in the process of trading. The authorities should play a quasi “wedge-like” blocking role in due course. It is therefore suggested that a differentiated management scheme should be adopted considering the variance in regional resource endowments and social ecosystem. This paper expected to shed light on improving construction land-use efficiency for China and other similarly placed developing countries.  相似文献   

11.
Non-marketable land often receives a low economic value, leading to the inefficient use of land. Since there is little reference to this subject, it is appropriate to develop a method for estimating the real economic value of non-marketable land, particularly when designated for various public projects. This paper presents an economic model used for estimating the value of non-marketable land in Israel, based on various measures, such as the distance from Israel's central region, socio-economic state, and proximity to the sea. The model allows rapid estimation of land values when examining a certain location for public projects, hence intended to prevent inefficient land use and low profitability of these projects. The model was subsequently used to estimate non-marketable land in four different regions in Israel where there is an interest in establishing public projects. The findings of the model indicate that these lands have high, yet diverse economic values. Furthermore, the results show that the highest land value was calculated for the location where the largest area was allocated. Thus, the model allows the internalization of the true land costs and may assist to select the land with the highest economic feasibility for such projects, preventing the realization of projects that are not economically worthwhile. There are two main options to integrate such a tool in the decision making process: as a statutory tool, or as a tool to be used by environmental organizations.  相似文献   

12.
Bioeconomy comprises a novel approach towards economic development in the European Union (EU). Its development should be confined by the planetary boundaries (biocapacity). We integrate the land footprint approach related to production and land biocapacity to assess the trends in capacity and productivity of bioeconomy in the EU countries throughout 1997–2013. Results show that the level of production-based land footprint and land biocapacity vary across the EU countries. However, Belgium is the sole case where production-based land footprint exceeds land biocapacity. The highest possibilities for development of the bioeconomy sector are observed for Slovenia, Croatia, Romania and Slovakia. Meanwhile, Estonia, Denmark and the United Kingdom have almost achieved the level of land biocapacity. Considering the catch up growth rate, almost all of the EU countries (with exception of Greece, France, Italy and Romania) show increasing footprint-to-biocapacity ratios with the highest values for Estonia and Latvia. The significant absolute decoupling between production-based land footprint and agricultural value added is observed in Denmark. Meanwhile, Italy, Lithuania and Spain show relative decoupling. Thus, these countries should pay particular attention to productivity improvements in forestry and agriculture. This study contributes to setting the targets for bioeconomy policy that can support the sustainable and efficient use of biological resources.  相似文献   

13.
China has implemented land use master plans to strictly control built-up land usage. The effective evaluation of land use master plan on controlling construction land is the premise of monitoring and early warning of planning implementation. It is also the basis for planning revision and further implementation of territorial spatial planning. In this study, we established a comprehensive index system based on three aspects: scale management, annual growth rhythm control, and spatial layout. We then analyzed the consistency between the actual situation for built-up land and the previous land use master plan of the Jinan Municipality in the Shandong Province of eastern China. The results showed that the master plan effectively controlled the scale of built-up land sprawl, such that the annual growth rhythm control level periodically increased over time. They also indicated the low efficiency of the built-up land spatial layout control. Overall, the previous land use master plan in Jinan had notable impacts. We recommend that land policy makers should adjust control standards and implementation intensity for spatial planning in the future to achieve scientific and effective planning for the management of construction land.  相似文献   

14.
Kevin A. Gould   《Land use policy》2006,23(4):395-407
Land regularization, the provision of state-sanctioned property rights to landowners, is an important development strategy in the Global South. Although much work has examined the effects of regularization in settled rural areas, the effects of this policy on agricultural frontiers are poorly understood. Four benefits of regularization that are predicted for settled rural areas are improved tenure security, increased land-attached investment and credit access, and more efficient land market activity. This study explores the extent to which these benefits accrue to campesino landowners and society in the early years of a regularization project implemented by a non-government organization (NGO) on an agricultural frontier in Petén, Guatemala. Based on semi-structured interviews with landowners from three rural communities in northwestern Petén and discussions with personnel from state agencies and NGOs, this study concludes that the predicted benefits of regularization are strongly constrained by socio-economic and ecological factors in the agricultural frontier region, specifically, the weak connection between legal tenure and de facto tenure security, inadequate markets, high wildfire frequency, unwillingness of banks to supply campesino landowners with formal credit, and the presence of a strong extra-legal land market.  相似文献   

15.
South African scholars have increasingly recognized that the prevailing management system for land use is one not relevant to the current spatial needs of the country's settlements. These include, in particular, the need to create sustainable, spatially just and resilient settlements and to develop land in a manner that promotes efficient urban development. The debate in the South African literature on land use management has, with a few notable exceptions, yet to venture into the specific mechanics of how to fix this system, ways the system can be used to create a spatially just urban form, or its applicability in formal retail areas.This paper addresses these questions within the context of formal retail areas and the zoning category that these are typically found in, namely that of the General Business zone. This paper initially investigates the current exclusionary nature of formal retail areas in the context of South Africa and within Cape Town and how this is linked to the more macro patterns of spatial exclusion within Cape Town. It is argued that within the context of Cape Town there is a need to focus on both commercial, particularly formal retail, as well as residential, areas with regard to the project of creating a more spatially just city. It is subsequently demonstrated, firstly, how zoning scheme provisions could be used as a mechanism to address these patterns of exclusion in formal retail areas, specifically exploring provisions that would encourage inclusion of informal and microenterprises within shopping malls. Secondly, it is demonstrated how provisions can be included that create a safer and more inviting environment for public transport users and poorer employees and consumers, in formal retail areas.The contribution of this paper is to initiate a long overdue conversation regarding the relationship between land use management and social justice within a developing world context, and in formal retail areas, and aims to set out ways in which land use management can be made more relevant; both for South African cities and cities in other developing countries.  相似文献   

16.
This paper analyzes and explains the development of forest governance over time and its impact on forest-dependent livelihoods in Sudan. Therefore, a qualitative historical analysis method was used to capture and interpret the analytical dimensions of the Political Ecology Approach (PEA). The historical review of the forestry development provides an insight into Sudan’s transforming governance framework for forest access and use, especially the related legislation, policies and resource administrations. This study concludes that unequally distributed forest resource access and institutional arrangements over time are detrimental factors for forest-dependent poverty and environmental degradation. Our study suggests that a more supportive governance framework, which integrates rural livelihood vulnerability with sustainability parameters, is needed thus to resolve the currently most contradictory forest management paradigms.  相似文献   

17.
Consistent with the challenges of sustainability science, land architecture offers a comprehensive approach to land system dynamics useful for numerous types of assessments, ranging from the vulnerability of coupled human–environment systems to forest transitions. With antecedents in several research communities, land architecture addresses the tradeoffs within and between the human and environmental subsystems of land systems in terms of the kind, magnitude, and pattern of land uses and covers. This approach is especially cogent for changes in tropical forests, given the broad-ranging forces acting on them and the equally broad-ranging consequences of their loss. The rudiments of the land architecture approach are illustrated for changes in seasonal tropical forests in the southern Yucatán of Mexico, the pivot of which is the Calakmul biosphere reserve. Simplifying the dynamics involved, the region-wide land architecture is the collective design of stakeholders with different land-use goals that favor tradeoffs in subsystem outcomes serving better either the reserve and related programs or the smallholder farmers that populate the region. A major tradeoff involves forest cover per se, which holds implications for forest transition theory. Evidence for an incipient transition involves the scale of analysis taken. The dynamics involved hold too much uncertainty to forecast a permanent transition to more forest cover and imply that more complex but robust versions of the theory are required.  相似文献   

18.
The aim of this article is to explore the relationship between state land policies, land markets and geographies of manufacturing in Beijing. Industries have decentralised moving from the centre, and agglomerating in various types of development zone in the outer city. The new patterns of industrial location in Beijing are to a significant extent due to state land policies that impact on manufacturing geographies through land prices, the land supply system and land property reforms. However, industrial relocation involves not only negotiations between government and firms, but is also a game played among different levels of government. National, provincial, municipal, county and even rural level governments bargain with each other to shape and gain from the relocation of industries.  相似文献   

19.
20.
The introduction of farmer participatory approaches over the past decades has to some extent improved the relevance and uptake of research results. While R&D prioritization increasingly involves more stakeholders, including the private sector, policymakers and civil society, building ecological literacy among all stakeholders is urgent, especially for sustainable agricultural development. A case study of an emerging fruit innovation system in Guinea, West Africa, highlights the challenges of supply- and demand-driven approaches to R&D prioritization. Shallow ecological knowledge and a blind faith in ‘modern’ technologies by scientists and farmers alike distort prioritization. Locally available, appropriate technologies are dismissed in favour of high technologies that are inaccessible to most smallholder growers. Strengthening the ecological literacy of all stakeholders may help to overcome this bias. On the other hand, building socio-technological literacy would allow innovation intermediaries, who typically act as brokers between the demand- and supply-side of technologies, to better understand the social and institutional contexts of technologies and how these affect potential uptake by poor farmers. Member centres of the Consultative Group on International Agricultural Research (CGIAR) could use the notion of ecological and socio-technological literacy to better understand supply and demand of technology and to work more effectively with their partners towards pro-poor and sustainable agricultural development.  相似文献   

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