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971.
国土资源部中国土地勘测规划院近日公布了2013年第一季度全国城市地价监测数据,数据显示,一线城市住宅地价全部环比上涨,二线城市中除哈尔滨外全部上涨,三线城市上涨的占81.15%。专家称货币宽松和流动性释放推动地价上涨,房地产开发用地供地面积同比增幅超过45%,目前我国房地产市场调控仍处于关键时期,调控土地价格势在必行。本文归纳总结了目前我国土地价格上涨情况,收集整理了国外部分国家调控土地价格的经验做法,提出了抑制我国土地价格上涨的建议。  相似文献   
972.
从农户视角出发,基于竞租理论,对退耕还林工程决策集进行分析比较,确定了农户收益最大化决策,进而根据政府财政支出最少的政策目标,确定最优补助标准。通过对陕西省退耕还林工程的典型代表——延安市的4种经营类型的主要作物品种进行实证分析发现:退耕还林工程政策将会激励农户参与经济林建设。政府若要调整农户的决策类型,则需进一步提高相应类型的补助标准。  相似文献   
973.
    
Urbanization is a primary cause of wetland loss in coastal metropolitan regions. Therefore, it challenges the preservation of biodiversity and the provision of key ecosystem services for urban settlements. These services include leisure and recreation, climate and water regulation, water purification, and especially alleviation of natural hazards. Tsunami flood mitigation is a particularly valuable regulating service provided by these wetlands, as recently evidenced during the 2010 tsunami that hit the central coast of Chile.The Concepción Metropolitan Area (CMA), located on the central coast of Chile, has experienced noticeable wetland loss in recent decades. Our study focused on the Rocuant-Andalién wetland, which has been particularly affected by urbanization. This wetland strongly contributes to flood control, and has provided effective protection against the CMA’s latest tsunamis (1835 and 2010). Based on Strategic Environmental Assessment (SEA), we have quantified urban growth over the wetland, both executed and projected under the Metropolitan Urban Plan of Concepción (MUPC). Recent loss in wetland area by urban growth has been quantified using land use and cover change (LUCC) maps from 2004 to 2014, obtained from the classification of Landsat images. Prospective changes (considering the complete MUPC deployment) have been inferred by combining the MUPC with the 2014 land cover map. In addition, we quantified the observed effect and planned urban growth on the wetland protected area, geoforms and potential flooding based on the area affected by the last Tsunami. Results show that urban areas have increased by 28% between 2004 and 2014, while future increase is expected to reach 238%. In contrast, wetland area has decreased by 10% from 2004 to 2014 and is expected to decrease by up to 32 %. Thus, the MUPC is not contributing to the mitigation of wetland loss nor the preservation of its biodiversity and ecosystem services. Implications for coastal planning are discussed.  相似文献   
974.
Neoliberal land policies such as land administration seek to improve property rights and the efficiency of land markets to boost rural economic production. Quantitative studies of pre-existing land markets can help planners to tailor these policies to local conditions. In this article we examine an extra-legal land market currently being modernized by a World Bank-sponsored land administration effort. Specifically, we use a hedonic-type revealed preference model and household survey data to estimate the factors affecting extra-legal land prices along an agricultural frontier in Petén, Guatemala. Our model indicates that land value is significantly affected by land attributes including location, tenure status, presence of water, distance to roads, and distance to landowners’ homes, and that land prices in the northwestern Petén are estimated to have risen on average 26.5% per year between 1977 and 2000. We contend that this rate of increase provides a strong incentive for colonists to speculate in land rather than invest in state sanctioned property rights. We conclude that if frontier development programs, such as land administration, are to become attractive to settlers in Petén and elsewhere, they must compete favorably with economic incentives associated with land speculation, or alternatively, target landowners who are not interested in playing the land market.  相似文献   
975.
    
Since the beginning of the 21st century, China has been involved in active discussion on the introduction of the property tax. Yet the current land management system is unsustainable mainly because land supply is limited. This is because the system of lump sum grants produces distorted interests among suppliers and consumers of land. The property tax can be both a cure for these problems and create an alternative financial source of revenue for local governments. We suggest a theoretical model that proves the superiority of a property tax over lump sum grants.  相似文献   
976.
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   
977.
    
This paper investigated youth access to agricultural land under customary land tenure in Ghana. Using Techiman Traditional Area as a case study, the study applied multiple sampling techniques in a multi-stage sampling process to select the study communities and respondents. A total sample of 455 youth respondents and 23 elders were covered in twenty peri-urban and rural communities. The study revealed that irrespective of whichever mode (market or non-market) the youth employed to access agricultural land, in rural or peri-urban areas, there were constraints to their land sizes. Majority of the youth, both indigenes and migrants, held small land sizes of 1–3 acres for farming purposes. The underlying causes were two-fold: demand-related such as high cost of accessing land and competition from residential developers and supply-related such as unwillingness of the elders to release land and increasing scarcity of productive family land, among others. It is thus the conclusion of the paper that more research should be conducted across the country into youth access to agricultural land under customary tenure as a means of formulating an evidence-based youth agricultural land access policy for the country. There is also the need for public education of customary authorities to sensitize them on the need for making land accessible to the youth for agricultural purpose.  相似文献   
978.
    
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   
979.
Summary

This paper is concerned with explaining the relationship between land prices and subdivision activity in Madina, Saudi Arabia. This article is not concerned with the effect of land prices on individual landowners, but rather on the supply of land in general. First it is necessary to explain the increase in land prices and why they have risen in real terms over time, what are the periods of growth and decline and what effects have they had on the supply of land for subdivision. This paper then explains the geographical variations in land prices and their influence on the distribution of land subdivision throughout the Madina area, especially in inner city areas and suburban areas.  相似文献   
980.
Spatial planning has been earmarked as an important tool for achieving sustainable development. In Sweden the important task of planning for sustainable spatial development and land use falls largely to the local authorities, since there is no official institute for spatial planning at a national or regional level. This article investigates local planning for sustainable development by analysing recent municipal comprehensive plans, which it is argued are a major instrument for this purpose. Although comprehensive plans are statutory, their design and content is very much at local discretion, and for the most part, not a rigid process governed from above. For this reason, a template analysis was used, where the template was built from the contents of the comprehensive plans, and not from a predefined understanding of what sustainability is or how planning for sustainable development should be done. What the findings reveal, however, is that there is not much deliberation concerning the meaning(s) of sustainable development, and, further, that the planning principles considered necessary to bring about sustainable development were not exclusively regarded as sustainable as such, but rather as part of a general ‘belief system’ about prudent planning—sustainable or not. It is suggested that, rather than rethinking planning, planners have internalized the concept of sustainable planning into the existing ‘belief system,’ and thus, the planning principles have become ‘sustainable’ by default.  相似文献   
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