A multi-criteria model for land valuation in the land consolidation

Land consolidation is an effective technique in land management that contributes to sustainable rural development. Land valuation is one of the most important steps in land consolidation because it plays an important role in the reallocation process. Land valuation is also an important problem in Turkey as in many countries in the world. Because the lands will be reallocated at the end of the consolidation process, it is very important to determine the precise value of each parcel. However, the methods used in land valuation in many countries lag behind current techniques and technologies. For this reason, a new method for land valuation is needed. The purpose of this study was to develop a new model based on multi-criteria calculations that is suitable for today's technologies and addresses the weakness in the current land valuation methods. In a case study of Solak, Antalya, Turkey, we identified fourteen key land value factors. Those factors were assigned weights by the Land Valuation Committee, academic staff, engineers, and local landowners. The weights were then integrated into a framework called the Land Quality Index. The land quality index factors are the criteria for evaluating the geographical, physical, and socio-economic structure of the region. The scores for each factor on each parcel were determined using GIS software. The total score of fourteen factors was then converted to a 100-point scale, that comprised the Land Quality Index. The land value of each parcel was determined by adding the soil index to the Land Quality Index. In our study, we also created three different models to investigate how the parameters were apportioned during the land valuation. We found that, while the current method used by the government agency (General Directorate of State Hydraulic Works) classified the lands into five groups, our methods classified the lands into 17, 20, 24 groups, respectively. In addition, while the deduction rate was 4.97 % in the current method, they were 4.89 %, 4.86 % and 4.85 % in our new models, respectively. The method we proposed in this study determined land values more accurately, precisely, and fairly compared to current method used by General Directorate of State Hydraulic Works. It is suggested that our models could be used instead of the current method in the land consolidation works in Turkey.     

Inequity of land valuation in the highly developed city of Taipei,Taiwan

Taiwan has a wealth of experience in employing a graded, or split-rate, property tax. It is believed that a graded property tax can increase the capital intensity of improvements to land, and thus improve economic activities. In order to achieve this, land value needs to be extracted from the price of an improved property. Despite the long history of a graded property tax in Taiwan, the accuracy and corresponding equity issues of land valuation have so far received scant attention. This study adopts a linear regression model with data sets of both vacant land and improved property to separate land and structure values. This approach solves the common problem of scarce land sales and the empirical results turn out satisfactorily. The empirical findings suggest that the ratio of land value to total property price varies across property types and age of property. In addition, the current practice is likely to contribute to assessment inequity, and consequently tax inequity. All these observations call for the need to overhaul the present property assessment system.     

Sustainable valuation of land for development. Adding value with urban planning progress. A Spanish case study

This article presents a valuation model of land for development in a sustainable way, based on the design and execution of urban planning. Using this method, one can obtain, at any given point in time, the added value progress of the urbanization process. For each year during the plan’s execution, the value of land has been estimated. The free cash-flow method was applied in order to estimate the land valuation of any given year. From the estimate for each of those years, and using regression analysis, the most suited value added function was obtained, for the increase of value across time up to the point of finalized, fully urbanized land. The results show that this is an exponential growth function, such that during the initial years the progress of valuation is slow, but it accentuates during final years of execution as the land becomes urbanized, at which point the land achieves maximum value.     

Impacts and causes of land fragmentation, and lessons learned from land consolidation in South Asia

Landholdings and land parcels in South Asia are undergoing fragmentation, thereby accelerating the pace of their degradation and constraining agricultural development. Based on experiences gained in the region and elsewhere, this paper finds the fragmentation of small landholdings and tiny land parcels detrimental to land conservation and economic gain, thereby discouraging farmers from adoption of agricultural innovations. Primarily induced by the dependency of the major proportion of ever growing population on agriculture, the process of land fragmentation has been reinforced by the law of inheritance of paternal property, lack of progressive tax on inherited land, heterogeneous land quality and an underdeveloped land market. South Asian countries have had adopted policies and legal measures for facilitating land consolidation. However, desirable results were not achieved, as such interventions could not address structural causes of the problem. Broad policy and legal measures have been outlined for facilitating land consolidation in a sustainable way.     

The influence of valuation practices upon the price of vacant inner city land

Summary

Many earlier studies have provided useful statistical information on the extent of vacant land in British towns and cities, but few have attempted to relate land vacancy to the wider development process. This paper presents recent evidence from Inner Manchester which suggests that valuation practices operate to prevent inner city land prices from falling even in areas of apparent over‐supply. This creates a blockage in the development process. It is shown that asking prices for vacant sites currently on the market are often substantially in excess of the level of prices achieved in recent transactions. As the great waves of compulsory acquisition in Manchester are now over, the statutory rules of valuation do not account for this difference, although historic levels of value have been supported by recent local authority acquisitions by agreement. It is evident that the comparative method of valuation is unable to cope with few transactions or a declining economy, both of which characterize the inner city land market. As a result, inner city land prices appear to be revised downwards only slowly and reluctantly in response to lack of demand or excess supply.     

Use of the Migrating Birds Optimization (MBO) Algorithm in solving land distribution problem

Land distribution is an important process in Land Consolidation (LC) projects where agricultural parcels are reallocated to predetermined blocks. Land distribution is a process that takes a long time, requires high operating costs, and conflicts between landowners occur frequently. The parcels are tried to be placed in the best and most appropriate place of the existing blocks by considering many parameters in the distribution stage. Therefore, the placement of new parcels in blocks is seen as an optimization process. In LC projects, this process is carried out manually by technical staff using a software and thus it becomes a process that takes weeks and even months. Various methods have been developed to solve this important stage of the LC projects. It is required to find the best solution, since this issue is an optimization problem. This study aims to develop a new land distribution method. For this purpose, land distribution were carried out by use Migrating Birds Optimization (MBO) Algorithm. Used land distribution method in practice and the results of the new developed method were compared and thus the usability of the method that developed by us was tested. With this study, it has developed a new and successful distribution method according to the preference of land owners.     

Land consolidation in Cyprus: Why is an Integrated Planning and Decision Support System required?

This paper explores issues of land fragmentation, consolidation and reallocation and argues that a new planning support system for land consolidation is needed in Cyprus because of the long duration of projects, the high operational costs and the conflicts between the stakeholders involved. An Integrated Planning and Decision Support System is proposed that integrates artificial intelligence technologies and multi-criteria decision methods with a geographical information system for use in routine land consolidation planning as well as for undertaking ex ante evaluations of land consolidation projects, as required by the European Union. A framework is provided which shows how the system will contribute to reducing the problems associated with the land consolidation process.     

The Farmland Rental Paradox: Extreme land ownership fragmentation as a new form of land degradation

Extreme farmland ownership fragmentation is becoming a limiting factor for sustainable land management in some countries. Scattered, excessively small parcels cease to be viable for individual farming, and owners feel forced to rent these parcels to larger enterprises farming on adjacent land. Our study demonstrates a phenomenon that we call the Farmland Rental Paradox, where very small parcels tend to create large production blocks by being rented to larger farmers, and therefore to significantly homogenize the land-use pattern. The parcel size established as the threshold for this phenomenon is 1.07 ha. Below this threshold, the smaller the parcels were, the larger the blocks that they tended to create.Using the example of the Czech Republic, a state with extremely high farmland ownership fragmentation, it is demonstrated that this phenomenon can currently determine the land use of up to 40% of the country's farmland. Our study also points to other countries where this phenomenon may apply, especially the transitional countries of Central and Eastern Europe.The study discusses the tempo of the fragmentation process, which accelerates exponentially in countries with the equal inheritance system. It goes on to discuss defragmentation, social impacts of the dominance of the land rental market, and environmental impacts of significant homogenization of the land-use pattern. The serious negative impacts of extreme land-ownership fragmentation show that this phenomenon can be considered as a significant form of land degradation.     

Land owners’ perception of land consolidation and their satisfaction with the results – Slovenian experiences

Land consolidation has been an important instrument of rural development for over a century throughout Europe. Nowadays, land consolidation can be an integral part of both rural and urban development projects, but the focus of our study is on land consolidation in rural areas. In addition to the efforts aimed at making agriculture and forestry more competitive through a comprehensive reallocation process, improvement of road and drainage networks, landscaping, environmental management, conservation projects, and other functions may be implemented in land consolidation. There are differences in the objectives and procedures of land consolidation among the countries. Beside the formal institutional framework of land consolidation, informal institutions can have a substantial influence on the implementation of land consolidation. In the article, the past experiences in the field of land consolidation in Slovenia are presented, which are still reflected in the limited acceptability of this instrument among land owners. Furthermore, the current institutional (legal) framework is analyzed in detail. The main objective of the research was to investigate the opinion of land consolidation participants about land consolidation. Based on the field survey conducted on a sample of private land owners involved in selected land consolidation projects we tried to define the advantages and disadvantages of the current practice. The main finding is that the active participation of land owners contributes to their comprehension of the aims and to their satisfaction with the results of the land consolidation. It has been shown that the active participation of land owners in the land consolidation is the basis for developing good practices; moreover, it affects the land owners’ perception of land consolidation. The transfer of knowledge and representation of good practices among actors are still needed, in particular because of bad experiences in the past (i.e. enforced and environmentally unfriendly projects) and the traditional emotional attachment to land among land owners. In parallel, there is a great need to provide an optimization of the land consolidation process in Slovenia.     

Associating land use/cover information with land parcels represented in LADM

LADM design requires the association of external land use/cover information with cadastral land parcels. In addition to model design, related specifications are to be defined in the implementation. Yet, there are many severe obstacles against defining such specifications that are applicable to all cases. In this context, there are many different types of land use/cover classification systems for different purposes in different data quality, scale and content, which are either designed internationally or nationally. FAO Land Cover Classification System (LCCS), CORINE land cover, INSPIRE land use/cover themes, land use capability classification and Land Parcel Identification System (LPIS) are common international examples.In this study, management of spatial land use/cover data in association with cadastral land parcels represented by LADM was studied in a pilot study area in Turkey. In this context, association of spatial information as sub-divisions of land parcels (sub-parcels) was studied. Different land use/cover data sets (four types) were specifically produced for this study with an LPIS like digitization method. For the association, special overlay operations with and without predefined XY tolerances were carried out. Effects of similar yet different data sets, spatial data consistency between the produced sub-parcel data sets and land parcels, and also errors were analyzed based on the results. It is found (1) that the level of detail (base production scale) of external land use/cover data set increases spatial association errors, (2) that using XY tolerances to reduce these errors causes data inconsistency and (3) that direct spatial harmonization of two data set may be a robust solution when it is possible. In this context, in order to contribute to the implementation of LADM in terms of spatial association of land parcels and external land use/cover data, together with these data processing and analysis work, LADM modelling abstraction, availability and data quality issues of external land use/cover data, updating and maintenance issues were also discussed.     

Proposed algorithm for the identification of land for consolidation with regard to spatial variability of soil quality

The quality of soil is one of the most significant factors having a real impact on the potential level of agricultural crops. Therefore, it is a significant element shaping the profitability of agricultural production in the specific area. Familiarity with spatial variability of soil quality classes in respective voivodeships has an impact on planning the development of agricultural areas and effective allocation of money to rural spatial restructuring. This element also provides important information in the process of consolidation works programming which takes place at the regional government level. This data is characterised by very long usability due to a small number of changes referring to classification of land entered into the land and building survey. Data on the quality and suitability of soil in the analysed area was acquired from the analysis of data from the land and building survey. Analyses were carried out in 3 poviats of Lublin voivodeship located in the eastern part of Poland covering an area of 501 132.9 ha, split into 610,160 plots. This paper presents an algorithm designed by the author for identifying areas in which land consolidation works should be performed, including its practical application using the adopted sample. The algorithm identifies areas characterised by the highest soil quality, which makes it possible to indicate areas where land consolidation work should first be undertaken.     

The identification and assessment of ecological risks for land consolidation based on the anticipation of ecosystem stabilization: A case study in Hubei Province,China

The purpose of this study is to identify and classify the ecological risks in land consolidation, and to develop a framework of the theory and method to assess the change of ecological risk degree before and after land consolidation. Environmental impacts and ecological risks of land consolidation have recently drawn much attention, and there are two opposing viewpoints to assess these impacts and risks in the academia of China. Both viewpoints result from the bias of assessment anticipation. Land consolidation includes four main engineering aspects in China, and ecological succession from start of land consolidation to ecosystem stabilization should pass three phases. Different ecological impacts and risks of land consolidation rise from different phases of ecological successions. According to the climax theory of ecology, we developed a framework of the ecological risk assessment based on the anticipation of ecosystem stabilization (ERABAES) for land consolidation. We applied analytical hierarchical processing (AHP) method to the data resources from the land consolidation project in Southern China to allocate weightings to the indices of ecological risk (ER), and to set up an integrated index system for the ecological risk identification. This integrated index system encompasses the ecological risks with three factors (water, soil and biology) and 14 indices. The results of the project show: (1) The ER is reduced from 58.02 to 28.8 after land consolidation and the degree of ecological risk is down from Degree III to Degree IV. (2) According to the element analysis, the water ER is reduced from 21.53 to 6.16, its contribution to reduce the ecological risk is 53%; the reduced ERs of soil and biology are respectively 12.79 and 1.06, their contribution of ecological risk reduce is lower than water.     

Application of spatial resource data to assist in farmland valuation

A land transaction is generally not a recurring action for most buyers and sellers, their experience and knowledge are limited, for this reason the services of property agents and valuers are sometimes used, just to get more information available. The condition of insufficient information and the inability to observe differences in land productivity gives rise to the undervaluation of good land and overvaluation of poor land. The advent of the Internet made access to comprehensive information sources easier for property agents and valuers whose critical time and resources can now be effectively managed through Geographic Information System (GIS) integrated workflow processes. This study aims to develop the blueprint for a farm valuation support system (FVSS) that assists valuers in their application of the comparable sales method by enabling them to do the following: (1) Rapid identification of the location of the subject property and transaction properties on an electronic map. (2) Comparison of the subject property with the transaction properties in terms of value contributing attributes that can be expressed in a spatial format, mainly (a) location and (b) land resource quality factors not considered in existing valuation systems that primarily focus on residential property. An algorithm, that generates an index value, was developed to allow easy comparison of the land of a subject property and that of transaction properties. This index value distinguishes the proposed FVSS from other existing property valuation systems and can therefore be used by valuers as a first approximation of a property's soil suitability, before doing further field work. The FVSS was successfully developed and tested, primarily using data obtained in the Western Cape, South Africa.     

3 Dimensional data research for property valuation in the context of the LADM Valuation Information Model

Property valuation is a process that promotes sustainable development as it supports and forms several land management activities. Access to information on the legal, geometric, physical, locational and environmental characteristics of property units together with the economic indicators are required for an effective property valuation system. Traditional cadastral systems generally provide only two-dimensional (2D) legal and geometric information about property units, however, today’s valuation practices would benefit significantly from three-dimensional (3D) information in order better to estimate and explain values of property units. The purpose of this paper is to examine how 3D spatial datasets and spatial analyses have been used in property valuation, and to develop 3D valuation unit profile(s) in line with the examination results for the recently proposed Valuation Information Model that extends the ISO 19152:2012 Land Administration Domain Model (LADM) from the valuation point of view. The study focuses more on 3D locational and environmental characteristics of property units; particularly visibility and especially viewshed analysis in terms of property valuation. By using open topography, building and height datasets of the Netherlands, a number of viewshed analyses are conducted to show how it can be utilized using different 3D data sources. The main contribution of the article is to present how 3D datasets and spatial analyses could be used to support property valuation activities and to investigate to what extent it is possible and meaningful to include derived 3D characteristics of property units in valuation registries.     

Effects of agricultural land consolidation on soil conservation service in the Hilly Region of Southeast China – Implications for land management

Land consolidation has a long history, and it has currently become one of the most extensive and well-organized human activities in China. Agricultural land consolidation (ALC) will change land use patterns, vegetation coverage, as well as the physical and chemical properties of soil through a series of engineering and biological measures that in turn affect the soil conservation service of ecosystems. This paper analyzes the effects of ALC on soil conservation service in the Hilly Region of Southeast China based on the Revised Universal Soil Loss Equation (RUSLE). The main results were as follows: (1) ALC improved the soil conservation service of cultivated land; (2) variations in the soil conservation service were strongly related to rainfall, slope, area of newly converted cultivated land, earth volume of land leveling, earth volume of topsoil stripping and backfilling, reconstructed farm roads, newly built production roads, length of new irrigation systems, newly built drainage systems, number of new dams, and newly built revetments; (3) the newly established multiple regression models used in this paper could describe the relationship between the soil conservation service and significant impact factors. This study will help researchers to better understand the interactions between land management and ecosystem service provisioning as well as provide a scientific basis for policymakers as they put forward new land management policies.     

Can process-based modelling and economic valuation of ecosystem services inform land management policy at a catchment scale?

Land produces a range of benefits, from ecosystem services, but markets only incentivise the production of a small proportion of them. The Ecosystem Approach develops plans for moving towards a more optimal mix. This requires stakeholders to understand the value of ecosystem services and how these values change with land-use and management. We investigate whether process-based modelling and economic valuation can help stakeholders to do this. We do this by applying these tools to a plan to improve ecosystem services delivery in a catchment. To be used in decision-support, analytical approaches need to be relatively inexpensive and rapid, and our analysis was deliberately constrained in this way. Two 25-year future scenarios were developed and compared against a baseline scenario. The first Designated Site scenario was based on enhancing the condition of nationally important nature conservation sites. The second, Ecosystem Services scenario, represented implementing the ecosystem services delivery plan. We modelled the change between the scenarios with an internationally recognised process based ecosystem services toolkit (the Land Use Capability Indicator, LUCI tool) and used the model outputs to inform economic valuation methods. Our selection of which ecosystem services to model and value were initially identified through a participatory approach. However those we could quantify was limited by evidence and data availability. We assessed changes in water quality (phosphorus load), sediment generation, carbon storage and flood regulation. We were able to put economic values on only carbon sequestration and flood regulation. Both the modelling results and the experience of applying the linked modelling-valuation approach are examined in the discussion to consider the limitations to the current usefulness of linking process based modelling to economic valuation for informing land management policy. We explore the origin and nature of these limitations and the key bottlenecks that need to be overcome, applicable to its use in other sites, regions and countries. This includes the availability of suitable coefficients and/or underlying data/evidence to parameterise the model, and the compatibility of model outputs with available economic valuation evidence (for value transfer).     

An assessment framework for public urban land management intervention

The ability to manage land effectively depends on the availability of accurate and up to date information on it. Many cities, particularly those in the developing world, lack the means to generate the information needed to support land management. This paper proposes the use of assessment studies as a mechanism to generate information for land management. A model of the public land management system and a framework of steps and issues for carrying out an assessment study are presented. The paper also presents an overview of the common problems of land management in the developing world and a case study to illustrate the utility of the proposed framework.     

Stakeholder power relations in Land Value Capture: comparing public (China) and private (U.S.) dominant regimes

Understanding stakeholder power relations—such as between land sellers, land buyers, and local governments—is crucial to understanding Land Value Capture (LVC). While scholars have focused on stakeholder relationships through approaches such as stakeholder salience, stakeholder interaction, stakeholder value network, and stakeholder multiplicity, much research either places insufficient focus on power or only stresses partial attributes of power. As a result, the role of power relations among key stakeholders in LVC remains insufficiently explored. Our contribution is a new analytical framework for stakeholder power dynamics surrounding LVC. This provides an empirical analysis by comparing the public (China) and the private (U.S.) dominant regimes, through the perspectives of power direction, strength, and mechanism. To conceptualize the three perspectives of power in LVC, we constructed an analytical matrix and then categorized data in terms of stakeholder, space, and time perspectives. Based on empirical findings, four emerging dilemmas shed light on consequences for LVC policy making as well as areas in need of further research.     

The economics of land fragmentation in the north of Vietnam*

Land fragmentation, where a single farm has a number of parcels of land, is a common feature of agriculture in many countries, especially in developing countries. In Vietnam, land fragmentation is common, especially in the north. For the whole country, there are about 75 million parcels of land, an average of seven to eight plots per farm household. Such fragmentation can be seen to have negative and positive benefits for farm households and the community generally. Comparative statics analysis and analysis of survey data have led to the conclusion that small‐sized farms are likely to be more fragmented, and that fragmentation had a negative impact on crop productivity and increased family labour use and other money expenses. Policies which allow the appropriate opportunity cost of labour to be reflected at the farm level may provide appropriate incentives to trigger farm size change and land consolidation. Policies which tip the benefits in favour of fewer and larger plots, such as strong and effective research and development, an active extension system and strong administrative management, may also lead to land consolidation.