Browsing by Author "Janus, Jaroslaw"

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Arazi Toplulaştırma Projelerinin Arazi Parçalanma Değişimine Etkisi: Türkiye ve Polonya Örneği
(2021) Ertunç, Ela; Janus, Jaroslaw
Tarım arazilerinin parçalanması tüm dünyada yaygın bir problemdir ve bu problem tarım işletmeleri için arazi kullanımının, sürdürülebilir tarım ve rasyonel tarımsal kalkınmanın önündeki en büyük engellerden biridir. Arazi Toplulaştırması, arazi parçalanma etkilerini ortadan kaldırmak için parsellerin yeniden tahsisini içerir. Arazi Toplulaştırma projelerinden beklenen toplulaştırma sonrasında işletmelerin parsel sayılarını mümkün olduğunca en aza indirmektir. Böylece, Arazi Toplulaştırma projeleri ile arazi parçalılığı ve bununla birlikte işçilik, yol, sulama, bakım gibi girdiler azalmakta ve bu projelerden sağlanan verimi oldukça artırmaktadır. Bu nedenle arazi parçalılığının ölçülmesi, Arazi Toplulaştırma projelerinin planlanmasında ve sonuçlarının değerlendirilmesinde önemlidir. Arazi parçalılığı değerlendirilirken belirli bir işletmenin sahip olduğu parseller arasındaki mesafe faktörü dikkate alınmalıdır. Çünkü arazi parçalanması birçok parametreye dayanan mekânsal bir olgudur. Bundan dolayı, arazi parçalılığını belirlemede daha doğru bir yaklaşım için mekânsal yapının dikkate alınması gerekmektedir. Bu çalışmanın amacı Arazi Toplulaştırma öncesi ve sonrası parsellerin mekânsal dağılımını göz önünde bulundurarak Arazi Toplulaştırma projelerinin arazi parçalılığı üzerindeki etkisinin değerlendirilmesidir. Bunun içinde Türkiye ve Polonya’dan birer uygulama alanı üzerinde Arazi Toplulaştırmanın arazi parçalılığına etkisi incelenmiştir. Arazi parçalılığını ölçmek için; Average distance of a hectare indeksi, Grouping indeks, Structural indeks, Scattering indeks, Januszewski indeks ve Simmons’s indeks’leri kullanılmıştır. Elde edilen sonuçlara göre arazi toplulaştırma projeleri sonucunda arazi parçalanmasının azaldığını göstermektedir. Ayrıca Arazi Toplulaştırma projelerinde arazi parçalılığın ölçülmesinde parseller arasındaki mesafeyi dikkate alan arazi parçalılık indesklerinin (Average distance of a hectare indeksi, Grouping indeks, Structural indeks, Scattering indeks) kullanımı önerilmektedir.
Citation - WoS: 20
Citation - Scopus: 21
Differences in the Effectiveness of Land Consolidation Projects in Various Countries and Their Causes: Examples of Poland and Turkey
(ELSEVIER SCI LTD, 2021) Janus, Jaroslaw; Ertunç, Ela
Land fragmentation is a primary cause of low agricultural profitability in many regions of the world. Adverse fragmentation parameters can be improved with land consolidation projects. Such projects are undertaken in areas characterised by different initial parameters of land fragmentation, types of agriculture, sociocultural conditions, and legislation that provides the framework for their formal and procedural implementation. All these aspects should affect not only the effectiveness of the projects but also how they are evaluated depending on the local circumstances. The paper presents results of the assessment of identified differences in land consolidation project effectiveness in the context of legal and sociocultural conditions. The research involved eight land consolidation projects carried out in Poland and Turkey. The countries have similar structures of agriculture and are conducting ongoing, long-term land consolidation schemes. The results are indicative of the necessity to differentiate assessment criteria depending on the location of a project and its primary goal. The application of popular land fragmentation indices could, in particular, lead to incorrect assessment of whether a project was successful when it was not intended to result in a significant increase in parcel area and reduction of the number of parcels. The research shows that it is possible to compare the effectiveness of projects from different countries provided that the process takes into consideration differences in local conditions affecting the development of agriculture and legislation.
Citation - WoS: 20
Citation - Scopus: 21
The Impact of Differences in Land Fragmentation Parameters on the Planning, Implementation, and Evaluation of Land Consolidation Projects. Case Studies of Turkey and Poland
(ELSEVIER SCI LTD, 2020) Janus, Jaroslaw; Ertunç, Ela
Land fragmentation is one of the key factors of agricultural production profitability. One way to objectively assess the phenomenon is to represent it as several specific land fragmentation indices. Nevertheless, similar land fragmentation index values can be interpreted differently in different farming conditions in various countries. How these indices are calculated depends directly on the format of input data, usually based on cadastral data. The present research on eight villages in Turkey and Poland was an attempt to determine the impact of the identified differences, including different ways cadastral data are organised, on the method of calculating land fragmentation indices and results of the calculations. The authors have demonstrated the fundamental importance of the method of including holding shares in parcel ownership titles in the calculations. Spatial distribution of farm buildings turned out to have a significant impact as well. The differences identified for the villages in both the investigated countries influence the primary objectives of land consolidation projects and should be decisive for key aspects when evaluating such projects.
Citation - WoS: 32
Citation - Scopus: 37
Impact of Land Consolidation on Agricultural Decarbonization: Estimation of Changes in Carbon Dioxide Emissions Due To Farm Transport
(Elsevier, 2023) Janus, Jaroslaw; Ertunc, Ela
Areas used for agriculture are a large source of carbon emissions, but there is great potential for reducing them. Land consolidation, through the comprehensive reorganization of the spatial arrangement of farms, can reduce emissions as a result of reducing fuel consumption. The subjects of this study are the veracity of this statement and the scope of var- iation in the potential reduction of carbon emissions. The analysis covered six land consolidation projects in Poland and Turkey, for several agricultural models that differ in the level of fuel consumption.Changes in agricultural road layout resulting from the implementation of land consolidation projects and changes in the number of farm plots and their spatial distribution were considered. The study considered several different levels and structures of fuel consumption on farms. The applied methodology is based on analysis of changes in distance to fields resulting from land consolidation projects, which are then expressed as changes in fuel consumption.The obtained emission reduction results for the studied land consolidation projects were diverse and range from 0.3 to 170 kg CO2/ha/year. The reduction in fuel consumption on farms at the level of individual villages reached a maxi- mum of 32 %, while the average value of this reduction in the entire surveyed set was 12.5 %. The proposed approach increases the accuracy of existing methods for estimating the long-term balance of carbon emissions and carbon accumulation related to the implementation of land consolidation projects. The observed emis- sion reduction values can be considered a significant economic and ecological effect because the effects of these pro- jects persist for at least several decades.
Citation - WoS: 13
Citation - Scopus: 15
The Impact of the Variability of Parameters Related To Transport Costs and Parcel Shape on Land Reallocation Results
(ELSEVIER SCI LTD, 2021) Harasimowicz, Stanis law; Bacior, Stanis law; Gniadek, Jacek; Ertunç, Ela; Janus, Jaroslaw
Land reallocation is a time-consuming but vital stage of land-consolidation projects, hence the many attempts to automate and optimize this process. Transport costs related to distances from parcels to farm buildings and costs related to areas and shapes of parcels reduce the profitability of agricultural production. These factors are taken into consideration in some of land reallocation algorithms as separate, independent parameters. The objective of the study was to demonstrate that it is possible to simplify the optimization of land reallocation with a single, dimensionless parameter, a ratio of costs related to the shape and area of a parcel to transport costs. The linear programming method employed uses binary variables, making it a heuristic research method. The optimization model considers several additional conditions to reflect actual land-consolidation projects better: the result of interviews with landowners; equal holding values before and after reallocation; the reduction of the average distance to parcels. The study has demonstrated how the variability of the proposed parameter affects results of optimization in the form of an objective function of the parcel area, shape, and distance to buildings. The proposed modification improves the versatility of the land reallocation model as it allows the researcher to employ a single parameter, which may vary in time, by region, by initial land fragmentation parameters, or changes in farming inputs prices, including fuel and labour. The results proved that very high variability of the examined parameter translates into no more than 10% increase in the value of the objective function in relation to its minimal, optimal value. The research has demonstrated that it is sufficient to assume a specific ratio of costs related to parcel shape to transport costs to devise a proposal of an optimal boundary arrangement for given economic conditions and area.
Citation - WoS: 13
Citation - Scopus: 12
Land Use Suitability Model for Grapevine (vitis Vinifera L.) Cultivation Using the Best Worst Method: a Case Study From Ankara/Türkiye
(MDPI, 2023) Uyan, Mevlut; Janus, Jaroslaw; Ertunç, Ela
The product of grapes with the highest added value is wine. Wine grapes play an important role in the evaluation of barren lands, where no other plants generally grow. Viticulture in Turkiye is generally conducted on small areas of agricultural land. In order to develop viticulture, it is important to determine suitable areas. This study presents a model for assessing land suitability for cultivation of grapevines (Vitis vinifera L.) in the Ankara region (Turkiye). The aim is to provide a spatial decision support system based on geographic information system multi-criteria assessment, taking into account the perspectives of expert agricultural engineers and local product growers. In this study, 11 criteria were evaluated to determine the most suitable locations for grapevine cultivation. The best worst method was used to calculate the weights of the determined evaluation criteria. When the spatial distribution of the areas suitable for grapevine cultivation was examined from the resulting map produced, it was seen that 1879.29 km(2) (7%) of highly suitability areas, 5062.03 km(2) (20%) of medium suitability areas, 4706.20 km(2) (18%) of low suitability areas, and 8355.36 km(2) (33%) of unsuitable areas were detected. According to the results obtained, the southern parts of the study area are more suitable for grapevine cultivation. This study will be an important and useful regional guide for agricultural land use planning and the cultivation of grapevines.
Citation - WoS: 9
Citation - Scopus: 9
Prioritization of Land Consolidation Projects Using the Multi-Criteria Best-Worst Method: a Case Study From Poland
(Springer, 2023) Ertunc, Ela; Janus, Jaroslaw; Uyan, Mevlut
In order to balance the needs of ecology, environment, and agricultural productivity with the aim of revitalizing rural areas, every local government unit that plans to implement a land consolidation (LC) project should decide where to start these projects as a priority. Traditionally, some of these decisions are made by groups of people connected to the consolidated area, while the others are made by groups of people from government departments, all trying to make the best possible decision. However, one of the most important conditions for the successful implementation of these projects, requiring large investment costs is, determining the priority areas for LC projects and allocating the investments to the appropriate areas meticulously. This study proposed a new model for determining priority areas for LC projects. In this study, by determining a set of criteria according to the parameters taken from 75 villages (Malopolska region, Poland), a model was developed for prioritizing LC projects using the Best-Worst Method (BWM), a multi-criteria decision-making (MCDM) method. The proposed model enables the transparent identification and prioritization of villages for land consolidation by national and local authorities, effective management of resources, and equitable allocation of financial assistance.
Citation - WoS: 21
Citation - Scopus: 24
Towards a Full Automation of Land Consolidation Projects: Fast Land Partitioning Algorithm Using the Land Value Map
(Elsevier Sci Ltd, 2022) Janus, Jaroslaw; Ertunç, Ela
One of the key stages of land consolidation is land reallocation, over the course of which the land of individual owners is pre-allocated to the blocks into which the project area is divided. The key to such an assignment is a set of adopted criteria, the most important of which are the effects of interviewing landowners. The problem of land partitioning is solved either as an optimisation issue in view of the assumed criteria, or as a technical problem related to the automation of the division of a block into new plots with an accuracy sufficient to create the consolidation project documentation and the accuracy requirements of cadastral databases. The article presents an algorithm of an analytical way of dividing a block of any differentiation of the land's value and any shape of the block itself, according to the adopted direction of the course of the new borders. The algorithm may be applied in cases, in which the plot boundaries are parallel to each other and run across the entire block. The speed of the algorithm enables dynamic determination of the plot boundaries in real time.