Yazar "Degirmenci, Hasan" seçeneğine göre listele

Listeleniyor 1 - 4 / 4
  • [ X ]
    Öğe
    Evaluation of some Water, Energy and Financial Indicators: A Case Study of Esenli Water User Association in Yozgat, Turkiye
    (Galenos Publ House, 2023) Kartal, Sinan; Degirmenci, Hasan; Arslan, Firat; Gizlenci, Ismail
    Energy is one of the most important inputs for pressurized irrigation systems in the world's agriculture sector. As in all areas of life, energy used in irrigation has become an important research subject for researchers. In studies performed with performance indicators in Turkiye, the use of energy indicators is limited. The scarcity of energy resources makes the efficiency of energy used in irrigation schemes extremely important. This study evaluated the performance of a pressurized irrigation scheme with water, energy and financial indicators in Yozgat. The data obtained were compared with other countries in the Mediterranean region. As a result, it was concluded that, on average, the irrigation rate was 39%, annual irrigation water supply per unit irrigated area was 8229 m3 ha-1, specific energy was 0.33 kWh m-3, energy consumed per unit irrigated was 2671 kWh ha-1, total maintenance, operation and management cost per unit irrigation water supply was 403 euro ha-1 in the years (2008-2017) when the study was conducted. The finding showed that the specific energy value was about three times lower than in other countries. However, when the energy consumed per unit in the irrigated area was examined, it was found that the irrigation scheme has a high consumption of energy.
  • [ X ]
    Öğe
    Geospatial and geostatistical analysis of land fragmentation and parcel shape indicators for sustainable farm structure in land consolidation
    (Elsevier, 2026) Arslan, Firat; Degirmenci, Hasan
    Land consolidation (LC) is one of the key implementations to improve farm structure by enhancing parcel shape and reducing land fragmentation. Many researchers have developed indicators to measure parcel shape deformation and land fragmentation levels; however, these indicators often lack consistency for assessing land consolidation projects. In this study, we demonstrate that our newly developed New Parcel Shape Index (NSI) and New Land Fragmentation Index (NLFI) are more effective for assessing land consolidation projects. Geospatial and geostatistical analyses were applied to calculate the new indicators using ArcGIS-ArcMAP, with Excel utilised for calculating and comparing other indicators. To test these analyses, the cadastral data and reports of the T & uuml;rkiye Malatya Province Arguvan District Tatk & imath;nl & imath;k Village Land Consolidation project were used as material. As a result, it was observed that parcels with NSI values approaching 1 were close to a rectangular shape, while those deviating from an NSI value of 1 exhibited deformation. Other shape indices were found to perform poorly in parcel shape analysis. In measuring the level of land fragmentation, farms with small NLFI values were observed to be less fragmented than those with large NLFI values. Other land fragmentation indexes showed poor performance compared to NLFI. As a result, NSI is recommended for shape analysis, and NLFI is recommended for assessing land fragmentation. These indices can be utilised in before and after LC evaluations or in determining priority LC areas.
  • [ X ]
    Öğe
    Investigation of Parcel and Line Densities in Land Consolidation Projects
    (Univ Namik Kemal, 2024) Arslan, Firat; Degirmenci, Hasan
    Land consolidation can be considered as a rural revitalization project encompassing the aggregation of fragmented parcels, the creation of agricultural parcels suitable for farming, the organization of rural roads, and the establishment of irrigation and drainage systems, alongside the provision of sociocultural facilities. These evaluation methods can assist policymakers, land administrators, and decision-makers, especially considering the rapid progress of land consolidation projects in T & uuml;rkiye, in improving these projects that require high costs and significant efforts.In the monitoring and evaluation of land consolidation projects, numerous researchers have developed methods.In land consolidation projects, among the project objectives are achieving the optimal parcel size due to the growth of enterprise and providing road services to all parcels.Research in the literature is still lacking in terms of evaluating the distances of parcels from the village centre and the densities of the rural roads constructed in land consolidation projects, in addition to the optimal parcel size. The use of geographic information systems (GIS) can be valuable in the evaluation of land consolidation projects, as GIS-generated maps not only aid in assessment but also provide easily understandable interpretations.The aim of this study is to examine road lengths before and after a land consolidation project, as well as the spatial changes of parcels, using geographic information systems. The cadastral data of Tatk & imath;nl & imath;k Village in Arguvan District of Malatya Province constitute the main material of the research. In line with this objective, geospatial analyses were conducted using Kernel Density and Line Density tools. The ArcMAP program's Model Builder Tool was employed to process the data obtained from NetCAD. As a result of the research, itwas observed that road density increased in areas where parcel sizes decreased. The regions with the highest parcel and road density are situated around the village centre. In addition to the optimal size of agricultural operations, the distance to the village centre also affects fuel expenses. Therefore, the aggregation of small-scale parcels around the village centre can be considered one of the indicators of success for land consolidation projects. Density analyses can assist decision-makers in evaluating, interpreting, and determining priority land consolidation areas.Additionally, the indicators for road lengths developed in this study can be utilized in studies conducted on road lengths.
  • [ X ]
    Öğe
    The effects of land consolidation projects on pressurized irrigation system design and the cost: A case study from Türkiye
    (European Regional Centre Ecohydrology Polish Acad Sciences, 2024) Arslan, Firat; Sawassi, Aymen; Derardja, Bilal; Degirmenci, Hasan; Lamaddalena, Nicola
    Land consolidation projects (LCP) has been applied in various countries to decrease land fragmentation, to give field road and to create more appropriate regular parcel shapes besides many benefits to farmers. Moreover, LCP help to decrease the cost of irrigation system establishment. T & uuml;rkiye aims to modernize open irrigation systems into pressurized systems with LCPs to save water due to climate change and global warming. However, previously published studies on the effect of LCP on designing pressurized irrigation network are not adequate. In this study, Eymir Village LCP in T & uuml;rkiye was chosen as the material to investigate how can LCP affect the cost of the establishment of a pressurized irrigation system. In this context, two similation of irrigation systems are designed with help of geographic information systems (GIS) and are analyzed by COPAM (Combined Optimization and Performance Analysis Model) to optimize the hydraulic performance. Results show that land consolidation proved to be an effective tool to solve spatial problems related to improving the irrigation systems, technical problems related to the performance of the networks, and the equity of services (guaranteeing 98% satisfaction of users). And, it has the most important effect on the economic feasibility of pressurized irrigation network establishment whose cost can be decreased by 13.6% by LCP.