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1.
The island of Mallorca is the main Balearic resort and sustainable water management is a key challenge for the economic and ecological sustainability of tourism as the main economic activity. The critical water supply situation on the island is being exacerbated by the extension of the tourist base to so-called “quality tourism”. Since the mid 1990s, low-density residential tourist land uses associated with second homes and more affluent urban dwellers have spread around existing mass tourist urban centres. Increasing water consumption for outdoor uses (gardens, swimming pools) is a direct consequence of this development. Available water consumption data mask the impact of residential tourism on water consumption levels. The objective of the present paper is to compare per capita water consumption in quality tourist, mass tourist and residential urban areas, and to provide quantitative information on the magnitude of water consumption by gardens and swimming pools as water-related leisure structures. The analysis combines water consumption data with a land use geodatabase at the sub-parcel scale, a detailed population inventory, and an estimate of pool water use. The results show that quality tourism produces higher water consumption levels per capita than mass tourism. Garden irrigation is the single main cause of the high water consumption in quality tourist areas and accounts for more than 70% of these areas’ total consumption in summer. But even in mass tourist and residential areas, garden irrigation accounts for up to 30% and 20%, respectively, of total water consumption in summer. Individually owned swimming pools cause an additional average water consumption of 22 litres/person/day. The proliferation of swimming pools and lavish ‘Atlantic’ gardens may turn out as one of the biggest threats to sustainable water management on the island of Mallorca and in other tourist destinations adapting the quality tourist model.  相似文献   

2.
This paper provides a constructive critique of Corrine Cash's paper “Good governance and strong political will: Are they enough for transformation?”, published in volume 58 of Land Use Policy in 2016. By focusing on how intra-sector dynamics influence land use policies in conflicts revolving around urban sprawl, this paper aims to complement and, to some extent, widen the analytic lens deployed by Cash. The examination of the Spanish wine sector and its lack of zoning policies confirms Cash's argument about the need to go beyond discourses of ‘good governance’ and ‘strong political will’ to understand the dynamics underpinning real spatial processes. However, this exploration underscores the need to add layers of complexity to land use analyses, showing the relevance of intra-sector conflict and logics. In complicating any simplistic reduction of urban sprawl conflicts to rural–urban oppositions, the paper ultimately calls for a more dynamic and multiscalar planning theory to address complex governance issues.  相似文献   

3.
The broad pattern of rural land ownership exhibits quite modest change over the past 30 years, but this impression is misleading. It understates substantial changes in property rights, evidence of which is not readily available from published statistics. These changes reflect the growing urbanisation of the countryside, which has required owners to pay more attention to consumption interests, sometimes at the expense of traditional agricultural and forestry interests, which in turn have experienced mixed fortunes. Rural land is expected to supply, and is increasingly valued in terms of, multiple goods and services.Major trends in ownership, occupancy and land prices are reviewed, noting that the divisibility and flexibility of the bundle of rights which constitute ownership have allowed holders to respond to urban pressures and farming difficulties with practices including short-term leasing, contracting, supplying life-style residential properties and accommodating increased environmental regulation. But linking land use to land ownership type is difficult, not least because there are many other drivers of land-use change. Moreover, local and individual circumstances are now more significant than in the past, not least the ageing occupational structure of farming. The paper concludes with a brief discussion of some of the political, economic and environmental drivers that may affect future land ownership patterns.  相似文献   

4.
东北地区城市水资源利用及其用水需求预测   总被引:2,自引:0,他引:2  
从用水总量,用水结构,城镇人均生活用水量和万元工业产值用水量等方面。对东北3省区城市水资源利用的特征进行了分析;在对上述地区城市社会经济发展指标预测的基础上,对2010年和2030年城市社会经济发展的水资源需求量进行了预测。  相似文献   

5.
In the north rim of the Mediterranean region, where forest cover is increasing as a result of land abandonment and temperatures are rising as a result of climate change, there is increasing interest for the effects of such changes on the runoff of water courses. This is a paramount issue for the conservation of many freshwater habitats and species. In this work we studied the effects of both an increase in forest cover after depopulation and land abandonment and an increase in temperature on the runoff of a Mediterranean catchment and on the aquatic and semi-aquatic fauna species of the stream (Olzinelles valley, NE Spain). Although in our simulation no decreasing trend in runoff is detected, the monthly runoff-rainfall ratio is now 15% lower than 30 years ago, a fact that may be attributed to a drier period rather than to the small afforestation experienced by the catchment in the last decades. Other factors such as increasing temperatures, changing rainfall patterns and increasing canopy cover are discussed. The observed decrease in the water flow has caused the disappearance of white-clawed crayfish (Austropotamobius pallipes), Mediterranean barbel (Barbus meridionalis), chub (Squalius cephalus), European eel (Anguilla anguilla), and southern water vole (Arvicola sapidus). Our results suggest that in a progressively warmer climate, and especially after land abandonment processes, management of Mediterranean mountain areas should be oriented towards an appropriate distribution of agrarian and forest land-covers in terms of water availability. Down to the stream scale, the pools that keep water throughout the year should be conserved and extended to enhance its potential to maintain aquatic and semi-aquatic species populations.  相似文献   

6.
Ecosystem goods and services have been brought to the forefront of policy making all over the world. It is acknowledged that these goods and services underpin human well-being. The provision of water resources is amongst those services that have raised more attention, given its unquestionable value and global threats like climatic change. Nevertheless, the biophysical basis that determines the land-use/water interactions has been often ignored. For the formulation of sound decisions, it is necessary to extend the empirical basis that determines these complex relations. With this aim, the present paper analyses the effect of alternative types of land cover in the provision of water resources. In doing so, we compare hydrological, meteorological and land-cover data obtained in 15 watersheds located in the Basque Country (Northern Spain). Moreover we discuss the implications of including water resources in land-use policy and planning and address areas for further research.  相似文献   

7.
This paper presents an empirical analysis of the role of land fragmentation, crop biodiversity and their interplay with farm profitability. Original primary data are drawn from a survey conducted in the Plodiv region of Bulgaria. The econometric results stress the ambiguous role of land fragmentation on farm profitability. On one hand, land fragmentation reduces farm profitability. On the other hand, land fragmentation fosters crop diversification. We also find that crop biodiversity plays a beneficial role in farm profitability. Policies that aim to increase land consolidation and reduce fragmentation may overlook the positive link between diversity and plot heterogeneity. Policies that encourage land consolidation should, therefore, consider the crucial role that this has on other variables such as farm biodiversity.  相似文献   

8.
Non-compliance with regulation can be a major reason for policy ineffectiveness. Environmental non-compliance can cause environmental harm and undermine the sustainability of resource uses through, for example, overexploitation of water resources. If environmental non-compliance is identified as an issue, it is important to understand why it is occurring so that the causes can be effectively addressed. This paper reports empirical research conducted to identify the reasons why water users in two coastal irrigation areas in Queensland, Australia, may be taking water in excess of license conditions and thereby committing water theft. It applied the Table-of-Eleven (T11) framework, which distinguishes between ‘enforcement dimensions’, i.e., regulatory aspects meant to detect and deter non-compliance, and ‘spontaneous compliance’ dimensions. The research involved 67 water users of whom 24 participated in focus group discussions and 43 in face-to-face interviews. The research findings suggest that most water users are compliant with water rules principally because of strong spontaneous compliance, which is chiefly grounded in the belief that the rules are required to safeguard a common water resource. The research results suggest, however, that some water users may be intentionally taking water in excess of license conditions in order to maximize business profitability. Non-compliance is underpinned by perceived low probability of successful prosecution and a comparatively small penalty if a breach can indeed be proven. From a water management perspective, the findings highlight the critical role of ongoing education and communication efforts for maintaining high levels of spontaneous compliance. Stronger deterrents may be needed to address the intentional unlawful taking of water in the given context, including increasing penalties to ensure fines result in a net cost to offenders and reduction of water entitlements of repeat offenders. Improvements in water administrative processes can minimize the likelihood of offenders escaping a penalty.  相似文献   

9.
The aim of this paper is to analyse the main determinants of consumers' knowledge and their willingness to pay for organic food products. Moreover, the relationship between knowledge and buying behaviour is explored. Virgin olive oil is taken as an example. Data was generated by way of an experimental auction carried out in two cities in northeast Spain. A three-equation model is estimated: (1) Consumer knowledge; (2) the decision to pay a premium for organic olive oil; and (3) how much premium consumers are willing to pay. Results indicate that socio-economic variables are main determinants of consumer knowledge, and that consumer attitude, lifestyle and knowledge all influence the decision to pay a premium for organic olive oil.  相似文献   

10.
西部地区土地资源利用现状及合理开发对策   总被引:7,自引:0,他引:7  
针对西部地区土地资源开发利用中存在的矛盾和问题,认为应在开展西部地区土地资源调查的基础上。制定土地开发利用总体规划,进行土地持续利用评价,力求保持耕地总量动态平衡。同时,要加大地土地整治工作力度。并继续深化农村土地使用制度改革。  相似文献   

11.
In the coming decades, an increasing competition for global land and water resources can be expected, due to rising demand for food and bio‐energy production, biodiversity conservation, and changing production conditions due to climate change. The potential of technological change in agriculture to adapt to these trends is subject to considerable uncertainty. In order to simulate these combined effects in a spatially explicit way, we present a model of agricultural production and its impact on the environment (MAgPIE). MAgPIE is a mathematical programming model covering the most important agricultural crop and livestock production types in 10 economic regions worldwide at a spatial resolution of three by three degrees, i.e., approximately 300 by 300 km at the equator. It takes regional economic conditions as well as spatially explicit data on potential crop yields and land and water constraints into account and derives specific land‐use patterns for each grid cell. Shadow prices for binding constraints can be used to valuate resources for which in many places no markets exist, especially irrigation water. In this article, we describe the model structure and validation. We apply the model to possible future scenarios up to 2055 and derive required rates of technological change (i.e., yield increase) in agricultural production in order to meet future food demand.  相似文献   

12.
13.
In recent years, interest in the policy-informing role of research organisations has grown considerably. It has been argued from within the science domain that the management of land, whether at the field, farm or regional scale, can benefit from computer-based systems analysis. This proposition was examined through 26 semi-structured interviews, by conducting a workshop on modelling support in policy decision-making and investigating 11 European-based cases of policy-oriented modelling research. On basis of these materials, we assess approaches towards policy-oriented modelling within the domain of agricultural production and other environmental services of land. First, we define the boundary arrangements for our field of interest, i.e. computer-based systems analysis of agricultural production and ecosystems services. Such ideotypical classification of boundary arrangements makes explicit the institutional space in which system scientists function. This space enables certain activities, and at the same time constrains other initiatives, dependent on who is perceived to initiate and/or control research activities and to formulate objectives, and whether it is considered appropriate to integrate scientific knowledge development with policy work. Five ideotypical boundary arrangements are proposed: ‘Civil mandate’; ‘Trickle out’; ‘Janus face’; ‘Critical participant’; and ‘Knowledge broker’. In a second step, a number of critical leverage points are identified based on the 11 cases and these are addressed in relation to the five boundary arrangements. The term ‘leverage point’ covers means, conditions and methods that foster use of modelling work that can be changed, and thus may be part of a strategy to increase the chances that a model is used. The leverage points were: reputation of research institute and/or scientists; raising and balancing expectations; communication about and investment in the scientific basis of the modelling work; participation in model development; heterogeneous and extensive social network in policy domain; institute mandate that secures availability of ‘stepping stones’. We conceive of two applications of our research for modellers who are interested in the use of their work in the policy sphere. First, the boundary arrangement classification helps to interpret the experiences of others and to assess the relevance of lessons and suggestions for their own context. Secondly, the combination of the boundary arrangement perspective and critical leverage points presents a basis to design an institutional pathway for enhancing impact of modelling research in the policy sphere. For those researchers functioning in a science-domain-oriented environment, the analysis in this paper suggests that there are more options than the frequently proposed ‘more participation’ for increasing the likelihood that their policy-oriented work is used. These include establishing contacts with research groups or institutes that are in a position to function as ‘stepping stones’, or engaging with others to develop a social network in the policy sphere.  相似文献   

14.
With growing awareness of fire hazard as an environmental threat within tropical rainforests, the state of Brazil initiated a set of fire control policies aimed at monitoring and ameliorating fire hazard in the Amazon region. These policies were developed in the aftermath of large-scale fire events and reflect a conservationist discourse that responded to internal as well as international environmental concerns. In doing so, the policies have framed the “fire problem” around those who use fire in their land use practices, in particular small-scale agriculturalists. Yet, land policy in general has repeatedly failed to address the institutional arrangements which compel small-scale farmers to use fire in their agricultural practices and the underlying development processes that have made the landscape more vulnerable to accidental spread of fire. Using regional level data on small-scale farmers, I suggest that the conservation oriented approach of fire policy may not be enough to curtail accidental fire events and instead that the fire issue needs to be positioned within rural development as well.  相似文献   

15.
Quadratic programming techniques were applied to household food consumption data in England and Wales to estimate likely changes in diet under healthy eating guidelines, and the consequences this would have on agriculture and land use in England and Wales. The first step entailed imposing nutrient restrictions on food consumption following dietary recommendations suggested by the UK Department of Health. The resulting diet was used, in a second step as a proxy for demand in agricultural commodities, to test the impact of such a scenario on food production and land use in England and Wales and the impacts of this on agricultural landscapes. Results of the diet optimisation indicated a large drop in consumption of foods rich in saturated fats and sugar, essentially cheese and sugar-based products, along with lesser cuts of fat and meat products. Conversely, consumption of fruit and vegetables, cereals, and flour would increase to meet dietary fibre recommendations. Such a shift in demand would dramatically affect production patterns: the financial net margin of England and Wales agriculture would rise, due to increased production of high market value and high economic margin crops. Some regions would, however, be negatively affected, mostly those dependent on beef cattle and sheep production that could not benefit from an increased demand for cereals and horticultural crops. The effects of these changes would also be felt in upstream industries, such as animal feed suppliers. While arable dominated landscapes would be little affected, pastoral landscapes would suffer through loss of grazing management and, possibly, land abandonment, especially in upland areas.  相似文献   

16.
Forest Transition Theory (FTT) suggests that reforestation may follow deforestation as a result of and interplay between changing social, economic and ecological conditions. We develop a simplistic but empirically data driven land use transition agent-based modeling platform, interactive land use transition agent-based model (ILUTABM), that is able to reproduce the observed land use patterns and link the forest transition to parcel-level heuristic-based land use decisions and ecosystem service (ES). The ILUTABM endogenously links landowners’ land use decisions with ecosystem services (ES) provided by the lands by treating both lands and landowners as interacting agents. The ILUTABM simulates both the land use changes resulting from farmers’ decision behaviors as well as the recursive effects of changing land uses on farmers’ decision behaviors. The ILUTABM is calibrated and validated at 30 m × 30 m spatial resolution using National Land Cover Data (NLCD) 1992, 2001 and 2006 across the western Missisquoi watershed, which is located in the north-eastern US with an estimated area of 283 square kilometers and 312 farmers farming on 16% of the total Missisquoi watershed area. This study hypothesizes that farmers’ land use decisions are made primarily based on their summed expected utilities and that impacts of exogenous socio-economic factors, such as natural disasters, public policies and institutional/social reforms, on farmers’ expected utilities can significantly influence the land use transitions between agricultural and forested lands. Monte Carlo experiments under six various socio-economic conditions combined with different ES valuation schemes are used to assess the sensitivities of the ILUTABM. Goodness-of-fit measures confirm that the ILUTABM is able to reproduce 62% of the observed land use transitions. However, the spatial patterns of the observed land used transitions are more clustered than the simulated counterparts. We find that, when farmers value food provisioning Ecosystem Services (ES) more than other ES (e.g., soil and water regulation), deforestation is observed. However, when farmers value less food provisioning than other ES or they value food provisioning and other ES equally, the forest transition is observed. The ILUTABM advances the Forest Transition Theory (FTT) framework by endogenizing the interactions of socio-ecological feedbacks and socio-economic factors in a generalizable model that can be calibrated with empirical data.  相似文献   

17.
This paper links urbanization strategies to changes in land use and associated impacts on rural communities and agro-ecosystems in a rural area of China. Energy, monetary and human time variables as well as information on environmental pressures, have been combined to compare different typologies of households and the metabolism of different patterns of land use from an integrated perspective. The results show that urbanization strategies, aimed at shifting the current land use and at displacing the local population, while increasing the economic efficiency is also associated with an increase in fossil energy consumption and environmental pressure, as well as a reduction of the multifunctional characteristic of the area under investigation. Based on these findings the paper also offers a critical discussion of the Chinese rural development policy arguing that the multifunctionality of rural areas should be taken into account by Chinese policy-makers and planners as a viable strategy to achieve rural development targets.  相似文献   

18.
This paper estimates a structural econometric model of household decisions regarding income strategies, participation in programs and organisations, crop choices, land management, and labour use, and their implications for agricultural production and soil erosion; based upon a survey of over 450 households and their farm plots in Uganda. Many factors have context-specific impacts and involve trade-offs between increasing production and reducing land degradation. Government agricultural extension and training programs contribute to higher value of crop production in the lowlands, but to soil erosion in the highlands. By contrast, non-governmental organization (NGO) programs focusing on agriculture and environment help to reduce erosion, but have less favourable impacts on production in the lowlands. Education increases household incomes, but also reduces crop production in the lowlands. Poverty has mixed impacts on agricultural production, depending on the nature of poverty: smaller farms obtain higher crop production per hectare, while households with fewer livestock have lower crop production. Population pressure contributes to agricultural intensification, but also to erosion in the densely populated highlands. Several household income strategies contribute to increased value of crop production, without significant impacts on soil erosion. We find little evidence of impact of access to markets, roads and credit, land tenure or title on agricultural intensification and crop production and land degradation. In general, the results imply that the strategies to increase agricultural production and reduce land degradation must be location-specific, and that there are few 'win-win' opportunities to simultaneously increase production and reduce land degradation.  相似文献   

19.
Sustainable land use planning is crucial for realizing the aim of food security and for combating land degradation in the Sahel. A participatory land use planning workshop was organised in a village in the eastern region of Burkina Faso to investigate land use problems, their causes, effects and possible solutions. Participatory research tools and GIS were combined to get insight into possible conflicts or synergies between different land use options as mapped by different ethnic groups. Pictograms were used to locate alternative land use options on the map, after which they were digitised for analysis with GIS. The workshop confirms the importance of integrating scientific and local knowledge to develop concrete options for sustainable land use that fit to local realities and aspirations. Local people are knowledgeable about the driving forces behind land degradation, they take actions to combat the effects of degradation, and they have concrete ideas about alternative land use options. The use of GIS proved its added value in the participatory process of integrated land use planning. The maps that were produced also facilitate discussions between community members, researchers and government representatives at the regional level, both regarding current land use problems and regarding alternative options as perceived by the local population.  相似文献   

20.
This study was initiated to gain a better understanding of how patterns of development within Greenville, SC and its surrounding metro area would affect the Reedy River's water quantity and quality. Grenville County is located in the Upstate of South Carolina and serves as an economic hub for this region. Greenville is located on the I-85 corridor halfway between Atlanta, GA and Charlotte, NC. A previously prepared watershed-scale model was modified to yield quantity and quality data that would result from projected growth in Greenville through year 2030 at three different growth scenarios.The major findings of the study showed water quality was degraded with higher nutrient loads and peak and average flows were consistently higher for sprawling as compared to compact development. As more land is developed in the sprawling scenario, the amount of stormwater increases while water quality decreases. At Boyd Millpond by 2030, for instance, change in peak flow and average flow percentages more than double for the sprawling scenario. Similar effects were also seen for both total phosphorus and total nitrogen levels. Results are similar by 2030 for the flow entering Lake Greenwood from the Reedy River Arm. At that location, change in peak and average flow percentages, and changes in total nitrogen and phosphorus percentages, more than double when comparing sprawling versus compact developments.While these results are based on the effects of predicted development along the Reedy River, in Greenville, SC, the overall implications of development on water quality applies to most any community faced with similar issues. These modeling results allow land use planners such as municipal boards to gain a better understanding of what impacts land use planning and zoning can have on a community as related to effects on water quality and quantity.  相似文献   

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