22 results on '"Timuçin Everest"'
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2. Soil losses due to leek and groundnut root crop harvesting: An unstudied regional problem in Turkey
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Mehmet Parlak, Timuçin Everest, Tülay Tunçay, Andrés Caballero‐Calvo, and Jesus Rodrigo‐Comino
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Soil Science ,Environmental Chemistry ,Development ,General Environmental Science - Published
- 2022
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3. Spatial distribution of heavy metals in soils around cement factory and health risk assessment: a case study of Canakkale-Ezine (NW Turkey)
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Mehmet Parlak, Timuçin Everest, and Tülay Tunçay
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Environmental Engineering ,Geochemistry and Petrology ,Environmental Chemistry ,General Medicine ,General Environmental Science ,Water Science and Technology - Published
- 2023
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4. Farklı Arazi Örtüsünün Arazi Degradasyonu Üzerine Etkileri: Çanakkale Çıplak Köyü Örneği
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Hasan Özcan, Timuçin Everest, Erdem Temel, Ali Sungur, and Mehmet Parlak
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Ziraat ,Agriculture ,General Medicine ,Ağır metal,arazi kullanım türü,degradasyon,monokültür tarım ,Heavy metals,land use type,degradation,monoculture agriculture - Abstract
This study was carried out in the Fluvial Flood Plain of Çanakkale-Karamenderes plain. The parcels on which the study was carried out have similar characteristics and have different land cover. In the study, we examined how land use type affects the physicochemical properties and heavy metal contents of soils. For this purpose, three different parcels were selected, namely, the land where maize has been cultivated for 15 years (P1), the land where maize has been cultivated for 7 years (P2), and the land where alternate agriculture has been carried out (P3). As a result of taxonomic survey, it was determined that a significant level of compaction and plowed layer occurred in (P1). Analysis results showed that there was an increase of 12% in bulk density in (P1). On the other hand, it was observed that this increase was lower in other parcels: P2 (7.5 %) and P3 (8.6 %). The results of the study indicated that heavy metals were significantly affected by lithology, but Cd and partial Pb were affected by anthropogenic sources. The concentrations of Cd were found to be above the critical values in all three parcels, and it was determined that the soils were contaminated with Cd. In addition, the results showed that although the primary source of Pb is lithology, it may have been affected by anthropogenic sources (emissions and chemicals used in agricultural production). The evaluation of the geoaccumulation index also supported these results. As a result, it was revealed that some physical and chemical properties of soil (especially compaction, Cd, and Pb content) were changed in the parcel where maize cultivation was carried out for 15 consecutive years., Bu çalışma, Çanakkale-Karamenderes ovasının fluviyal taşkın düzlüğü üzerinde oluşmuş ve benzer özelliklere sahip fakat farklı arazi örtüsünün bulunduğu üç farklı parselde gerçekleştirilmiştir. Çalışmada arazi örtüsündeki değişimin toprakların fiziko-kimyasal özellikleri ve ağır metal içerikleri üzerine olan etkileri incelenmiştir. Amaç doğrultusunda 15 yıldır mısır tarımı yapılan arazi (P1), 7 yıldır mısır tarımı yapılan arazi (P2) ve münavebeli tarımın yapıldığı arazi (P3) olmak üzere üç farklı parsel seçilmiştir. Taksonomik incelemeler neticesinde (P1)’de önemli düzeyde sıkışma ve pulluk altı katmanının oluştuğu belirlenmiştir. Analiz sonuçlarına göre (P1) profilinde hacim ağırlığında %12’lik artış yaşanırken, diğer parsellerde bu artışın %7,5 (P2) ve %8,6 (P3) olduğu görülmüştür. Çalışma sonuçları ağır metallerin önemli derecede litolojiden etkilendiği fakat Cd ve kısmen Pb’nin antropojenik kaynaklardan etkilendiğine işaret etmiştir. Cd elementinin konsantrasyonları her üç parselde kritik değerlerin üzerinde bulunmuş ve toprakların Cd ile kontamine olduğu belirlenmiştir. Diğer yandan, Pb’nin birinci derece kaynağı litoloji olmakla beraber antropojenik kaynaklardan da (emisyonlar ve tarımsal üretimde kullanılan kimyasallar) etkilenmiş olabileceğini gösterilmiştir. Jeobirikim indeksine göre yapılan değerlendirmede bu sonuçları desteklemiştir. Sonuç olarak 15 yıl ard arda mısır tarımı yapılan parselde toprağın bazı fiziksel ve kimyasal özelliklerinde (özellikle sıkışma, Cd ve Pb içeriği) değişim olduğu ortaya konmuştur.
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- 2021
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5. An important tool against combat climate change: Land suitability assessment for canola (a case study: Çanakkale, NW Turkey)
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Hakan Koparan, Timuçin Everest, Hasan Özcan, and Ali Sungur
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Economics and Econometrics ,food.ingredient ,food ,Land suitability ,Geography, Planning and Development ,Environmental science ,Climate change ,Management, Monitoring, Policy and Law ,Canola ,Water resource management - Published
- 2021
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6. Suitable site selection by using full consistency method (FUCOM): a case study for maize cultivation in northwest Turkey
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Timuçin Everest, Gönül Selin Savaşkan, Aykut Or, and Hasan Özcan
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Economics and Econometrics ,Geography, Planning and Development ,Management, Monitoring, Policy and Law - Abstract
The agricultural land evaluation procedure is a valuable guide for growing plants where they are best suitable, and it has a critical role in actualizing sustainable plans for providing food security for the growing population. In agricultural land suitability analysis, different multi-criteria decision-making methods are applied. The main objective of this study is to introduce the potential usage of a new multi-criteria decision-making method the Full Consistency Method (FUCOM) in agricultural land suitability analysis. The study was carried out in the northern part of the Karamenderes plain in NW Turkey. Nine land characteristics (soil texture, soil depth, organic matter content, electrical conductivity, pH, slope, drainage, CaCO
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- 2022
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7. Sarımsak hasatıyla meydana gelen toprak kaybının belirlenmesi: Balıkesir-Altıeylül İlçesi örneği
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Mehmet PARLAK and Timuçin EVEREST
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General Medicine - Abstract
Toprak erozyonu toprak degredasyonuna neden olan tehditlerden birisidir. Toprak erozyonunun toprak koşullarını, bitki verimini, biyoçeşitliliği ve insan beslenmesini tehdit ettiği bilinmektedir. Toprak kaynaklarının sürdürülebilirliğini şeker pancarı, patates, havuç, sarımsak gibi bitkilerin hasatı sırasında oluşan toprak kayıpları etkilemektedir. Bu araştırmanın amacı sarımsak hasatının neden olduğu toprak kaybını, kaybı etkileyen faktörleri, kaybolan topraktaki besin maddelerinin miktarını ve maliyetini belirlemektir. Sarımsak hasadı yılda 3.23 ton ha-1 toprak kaybına yol açmaktadır. Sarımsak hasatında toprak kaybındaki değişkenliğin %95’i toprağın nem içeriği, toprak bünyesi, hacim ağırlığı, kireç, organik madde, bitki sıklığı, baş ağırlığı ve sarımsak verimi açıklamıştır. Sarımsak hasatında besin maddesi kayıplarının yıllık maliyeti 10.74 dolar ha-1 olarak tahmin edilmiştir. Sarımsak hasatının neden olduğu toprak kaybı toplam toprak erozyonunun belirlenmesinde dikkate alınmalıdır.
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- 2021
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8. Applying the Best–Worst Method for land evaluation: a case study for paddy cultivation in northwest Turkey
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Timuçin Everest, Hasan Özcan, and Ali Sungur
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Environmental Engineering ,Analytic hierarchy process ,010501 environmental sciences ,01 natural sciences ,Agricultural land ,Statistics ,Cation-exchange capacity ,Environmental Chemistry ,Pairwise comparison ,Drainage ,Soil fertility ,General Agricultural and Biological Sciences ,Best worst method ,Storie index ,0105 earth and related environmental sciences ,Mathematics - Abstract
Several multi-criteria decision-making methods are used in land suitability analyses. The main objective of this study is to present the potential use of the Best–Worst Method to determine agricultural land suitability. Study was conducted in 6837.26 ha land in Canakkale northwest Turkey. Nine land characteristics (texture, electrical conductivity, drainage, pH, depth, cation exchange capacity, organic matter content, soil fertility index (N, P, K and Zn content) and CaCO3%) were used. Data obtained from the Best–Worst Method were compared with the results of Analytical Hierarchy Process, and Storie Index method. According to the Best–Worst Method, 5.76% of the land was highly suitable, 58.37% were moderately suitable, 31.93% were marginally suitable, and 3.94% were not suitable for paddy cultivation. To Analytical Hierarchy Process, 5.76% of the land was highly suitable, 61.42% were moderately suitable, 29.01% were marginally suitable, and 3.94% were not suitable and with respect to Storie Index method, 5.76% were highly suitable, 0.20% were moderately suitable, 57.78% were marginally suitable, and 36.26% were not suitable for paddy cultivation. There was a statistically positive correlation between the Best–Worst Method and Analytical Hierarchy Process (r = .997) and negative correlation between Storie Index. So, results showed that the data generated with the use of Best–Worst Method were consistent, reliable and complied with the data of Analytical Hierarchy Process. The advantage of the Best–Worst Method to other methods is to conduct less pairwise comparisons and has more practical and fast algorithm. So, the Best–Worst Method can reliably use in crop-based land suitability analyses.
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- 2021
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9. Uluköy ve Alemşah Sulama Göletleri(Çanakkale Türkiye) Sedimentlerinin Ağır Metal Kirliliği Bakımından İncelenmesi
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Timuçin Everest, Mehmet Parlak, and Tülay Tunçay
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Total organic carbon ,Pollution ,Urology ,media_common.quotation_subject ,Sediment ,Heavy metals ,engineering.material ,Metal ,Time frame ,Nephrology ,visual_art ,Environmental chemistry ,visual_art.visual_art_medium ,engineering ,Environmental science ,Enrichment factor ,Lime ,media_common - Abstract
Bu çalışmada, Çanakkale Ezine’de bulunan Uluköy ve Alemşah göletleri sedimentlerinin bazı fiziko-kimyasal özelliklerinin ve ağır metal konsantrasyonlarının belirlenmesi ve farklı ekolojik risk indislerine göre değerlendirilmesi amaçlanmıştır. Alanın belirlenmesi, örneklerin alınması ve analizlerin gerçekleştirilmesi (Nisan 2019-Nisan 2020) tarihleri arasında bir yıllık bir süreç içinde gerçekleştirilmiştir. Sediment örneklerinde tekstür, pH, elektriksel iletkenlik, kireç, organik karbon ile ağır metal konsantrasyonları belirlenmiştir. İlaveten sedimentlerdeki ağır metallerin kirlenme indisleri de (zenginleşme faktörü, jeobirikim indeksi ve kirlilik yük indeksi) saptanmıştır. Ağır metallerin zenginleşme faktörü Uluköy sulama göletinde Cu>Pb>Zn>Mn>Cr>Ni iken Alemşah sulama göletinde ise Cu>Pb>Zn>Mn>Cr=Ni sıralamasında belirlenmiştir. Uluköy sulama göletinde jeobirikim indeksi Fe için 8.55, Mn için 4.82, Cr için 3.06; Alemşah sulama göletinde ise Fe için 8.72, Mn için 5.13, Cr için 3.22 ve Zn için 3.12 olarak saptanmıştır. Hem Uluköy hem de Alemşah sulama göletleri sedimentlerinde ağır metallerce kirlenme saptanamamıştır. Kaynakların sürdürülebilir ve etkin kullanılması için bu tür izleme ve değerlendirme çalışmalarına önem verilmesi önerilmektedir.
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- 2021
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10. Suitable site selection for pistachio (Pistacia vera) by using GIS and multi-criteria decision analyses (a case study in Turkey)
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Timuçin Everest
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Sustainable development ,Economics and Econometrics ,business.industry ,Geography, Planning and Development ,Environmental resource management ,0211 other engineering and technologies ,Site selection ,02 engineering and technology ,010501 environmental sciences ,Management, Monitoring, Policy and Law ,Multiple-criteria decision analysis ,01 natural sciences ,Natural resource ,Land reclamation ,Agriculture ,Sustainability ,Environmental science ,021108 energy ,Drainage ,business ,0105 earth and related environmental sciences - Abstract
Efficient use of natural resources is only possible with rational management techniques. Land is one of the most important natural resources so it should be managed in accordance with its capabilities, properties and capacities for sustainable use. Land is, however, finite in extent. The combination of population growth and the growing need for land for non-agricultural purposes increases the pressure on competition for land. Therefore, land evaluation and land-use planning are becoming major issues for future use of it. The aim of this study is to determine suitable sites for pistachio (Pistacia vera) cultivation by using basic soil properties, climatic data, elevation conditions, geographical information system (GIS) and multi-criteria decision analysis (MCDA) in the Gulf of Edremit region-NW Turkey. In this study, literature and expert opinions were used to determine the requirements for pistachio cultivation. In the study, land-use capability classes, soil depth, soil limiting factors (drainage and salinity), mean temperature and critical period mean minimum temperature data for April and May, elevation and aspect data were used. An analytical hierarchical process was used to assign weights to the land characteristics used in the study. All data were transferred to GIS for further analyses. With overlay analysis, suitable sites for pistachio cultivation were determined. Suitability classes were reclassified according to the FAO (A framework for land evaluation, vol 22. International Institute for Land Reclamation and Improvement, p 87, 1977) framework. As a result, it was determined that in the Gulf of Edremit region 27,898 ha area is highly suitable, 8409 ha land is moderately suitable, 12,172 ha land is marginally suitable and 247,623 ha is not suitable for pistachio cultivation. The proposed methodology enabled the selection of suitable sites for pistachio cultivation for the first time by using GIS and MCDA. Soil and land are the basic natural and almost non-renewable resources for agriculture and other uses. The management of natural resources is a prerequisite for economic development and protection of the environment. For conserving precious natural soil resources, countries must have set up national land policy. The physical plans and land suitability analyses such as proposed in this study can help the protection of the environment and to assist for future land-use policies.
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- 2020
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11. A GIS-based land evaluation model for peach cultivation by using AHP: a case study in NW Turkey
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Timuçin Everest and Engin Gür
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Prunus persica ,Soil ,Turkey ,Geographic Information Systems ,Agriculture ,General Medicine ,Management, Monitoring, Policy and Law ,Analytic Hierarchy Process ,Pollution ,General Environmental Science ,Environmental Monitoring - Abstract
Crop-based land suitability studies constitute an important component of precision and sustainable agricultural practices. In this study, a model was created to determine suitable lands for peach farming with the use of the analytic hierarchy process (AHP). The land suitability model was carried out in Derekolu region of Bayramiç town of Çanakkale province. Within the scope of the study, a total of 12 parameters, namely soil depth, soil texture, EC, pH, organic matter content, CaCO
- Published
- 2021
12. Rulo Çim Alanlarındaki Toprakların ve Çim Bitkisinin Bazı Ağır Metal (Cu, Zn, Cr, Ni, Pb) İçerikleri: Pilot Çalışma: Edirne, Balıkesir ve Çanakkale
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Timuçin Everest, Tülay Tunçay, and Mehmet Parlak
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Agricultural, Engineering ,Mühendislik, Ziraat ,Ağır metaller ,General Medicine - Abstract
Kentleşmenin etkisiyle rulo çim alanlarındaki topraklar ağır metallerce kirlenmektedirler. Bu araştırmada Edirne (Kocahıdır ve Salarlı Köyü), Balıkesir (Altınova Mahallesi) ve Çanakkale’ deki (Çınarlı Köyü) rulo çim alanlarından alınan toprak örneklerinde alınabilir ve toplam ağır metal kapsamları ile çim bitkisinin ağır metal kapsamları belirlenmiştir. Toprak tekstürü, pH, elektriksel iletkenlik, kireç ve organik madde de saptanmıştır. Farklı yerlerden alınan toprak örnekleri birlikte ortalama olarak değerlendirildiğinde alınabilir Cu, Zn, Cr, Ni ve Pb sırasıyla 1.06, 0.43, 0.006, 0.83 ve 1.65 mg/kg olduğu belirlenmiştir. Bitki örneklerinin Cu kapsamı 5.47-7.63 mg/kg, Zn kapsamı 18.77-74.80 mg/kg, Cr kapsamı 2.25-9.39 mg/kg, Ni kapsamı 1.65-9.82 mg/kg ve Pb kapsamı ise 0.06-17.53 mg/kg arasında değişmiştir. Toplam Cu en fazla Çınarlı Köyü’ nde (529.60 mg/kg) en az Salarlı Köyü’nde (308.30 mg/kg), toplam Zn en fazla Altınova Mahallesi’ nde (47.16 mg/kg) en az Salarlı Köyü’nde (30.29 mg/kg), toplam Cr en fazla Çınarlı Köyü’ nde (118.10 mg/kg) en az Kocahıdır Köyü’nde (13.64 mg/kg), toplam Ni en fazla Çınarlı Köyü’nde (126.68 mg/kg) en az Kocahıdır Köyü’nde (7.31 mg/kg), toplam Pb ise en fazla Altınova Mahallesi’nde (15.46 mg/kg) en az Salarlı Köyü’nde (13.21 mg/kg) saptanmıştır. Elde edilen veriler toprak kirliliği kontrol yönetmeliğine göre değerlendirildiğinde çim alanı topraklarının hepsinde Cu derişiminin sınır değerlerin üzerinde olduğu, Çınarlı Köyü’ndeki Cr ve Ni hariç diğer ağır metallerin sınır değerlerin altında olduğu tespit edilmiştir.
- Published
- 2019
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13. Impact of urbanization on soil loss: a case study from sod production
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Mehmet Parlak, Humberto Blanco, Timuçin Everest, and Sabrina J. Ruis
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Turkey ,010504 meteorology & atmospheric sciences ,Population ,010501 environmental sciences ,Management, Monitoring, Policy and Law ,Silt ,01 natural sciences ,Soil ,Nutrient ,Organic matter ,education ,0105 earth and related environmental sciences ,General Environmental Science ,chemistry.chemical_classification ,education.field_of_study ,business.industry ,Urbanization ,Lawn ,Agriculture ,General Medicine ,Pollution ,Agronomy ,chemistry ,Soil water ,Erosion ,Environmental science ,business ,Environmental Monitoring - Abstract
The rapidly increasing population of urban centers leads to the increasing need for greenspaces. Sodding of turfgrass provides instant greenspace, but it removes soil from sod farms. The extent of such removal has not been widely quantified. The amount quantity of soil and organic matter lost with sod harvest and the associated cost of nutrients lost from six sod farms in the Marmara region of Turkey were determined. Soil loss ranged from 166 to 243 Mg ha-1 year-1, while the associated organic matter loss ranged from 1 to 6 Mg ha-1 year-1. The amount of soil loss increased with increases in gravimetric water, clay, and silt contents, and duration under sod harvest, while it decreased with an increase in sand content. Annual nutrient lost ranged from 117 to 449 kg ha-1 for N, from 2 to 18 kg ha-1 for P2O5, and from 21 to 175 kg ha-1 for K2O. Replacing the nutrient lost would cost about $134 ha-1 year-1 for sandy soils and $444 ha-1 year-1 for fine-textured soils. Soil lost with sod harvest was 134 times higher than that from agricultural lands by erosion in the region, although the area under sod production is much smaller than that under croplands. Similarly, organic matter loss was 4 to 5 times higher than the accumulation rate under established turfgrass in golf courses and lawns in locations with similar climate. Overall, sod harvesting results in significant and costly soil, organic matter, and nutrient loss, which, although small in area, can be an important component of total soil erosion.
- Published
- 2020
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14. Determination of agricultural land suitability with a multiple-criteria decision-making method in Northwestern Turkey
- Author
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Timuçin Everest, Ali Sungur, and Hasan Özcan
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Soil map ,Original Paper ,Environmental Engineering ,Geographic information system ,Land use ,Analytic hierarchy process ,business.industry ,Elevation ,Environmental monitoring ,Shuttle Radar Topography Mission ,Agricultural engineering ,010501 environmental sciences ,Geographic information systems ,01 natural sciences ,Lapseki ,Agriculture ,Agricultural land ,Suitable site selection ,Environmental Chemistry ,Environmental science ,General Agricultural and Biological Sciences ,business ,0105 earth and related environmental sciences - Abstract
This study was carried out in the district of Lapseki in Canakkale, Turkey. The suitability of land in Lapseki for agriculture was evaluated by using an analytic hierarchy process. In the study, the basic parameters were determined by using the soil map and the Shuttle Radar Topography Mission data. Land use capability classes, soil depth, erosion risk and other soil properties (limiting factors) were obtained from the soil map, while slope, elevation and aspect were obtained from the Shuttle Radar Topography Mission data. To determine the weight of the parameters in the analytic hierarchy process, the opinions of the public institutions and experts were obtained. The obtained data were analyzed with the analytic hierarchy process and mapped with geographic information systems techniques, and a land suitability map was generated. The agricultural land suitability map demonstrated that 2.95% (2557 ha) of the lands in the study area were highly suitable; 10.37% (8989 ha) were moderately suitable; 53.47% (46,336 ha) were marginally suitable; and 33.21% (28,775 ha) were not suitable for agricultural use. The data from the agricultural land suitability map were compared with the Coordination of Information on the Environment 2012 data. As a result of comparison, 14.12% (361 ha) of highly suitable lands for agriculture and 2.25% (202 ha) of moderate suitable lands for agriculture are urbanized. It was seen that 45.71% (24,837 ha) of the lands that are marginally suitable for agriculture and 18.76% (5397 ha) of the not suitable lands had current land use for agriculture.
- Published
- 2020
15. Toprak Verimliliğinin Değerlendirilmesinde Pedo-Jeolojik Yaklaşım
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Hasan Özcan and Timuçin Everest
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0106 biological sciences ,Fen ,Science ,Pedo-geological approach,fertility,soil properties,geology,Çanakkale ,04 agricultural and veterinary sciences ,General Medicine ,Pedo-jeolojik yaklaşım,verimlilik,toprak özellikleri,jeoloji,Çanakkale ,0405 other agricultural sciences ,01 natural sciences ,040501 horticulture ,010606 plant biology & botany - Abstract
This study was carried out inthe Ezine district of Çanakkale province. The aim of the study was to determinethe fertility of olive orchards by pedo-geological approach. A total of 37 soilsamples were collected for this purpose. Physical and chemical properties ofsoils were determined and distribution maps were generated by using IDW(Inverse Distance Weighted) method in GIS (Geographic Information Systems).Overlay maps were formed by overlaying the distribution maps of the parameterswith the digital geology map in GIS environment. Each obtained parameter wasinterpreted with the geology of the area. As a result of analyzes it wasdetermined that the soils texture is coarse-medium in areas where main geologicrock is granite. The existing of clastic sedimentary materials in the studyarea causes the CaCO3% content of the soil to be high and the pHvalues to be slightly alkaline. Areas with low organic matter content werefound to have higher sandy materials. It has been determined that phosphorus isderived from chemical decomposition of basalt, gabbro, serpentine and monzoniterocks and chemical fertilization. The chemical decomposition of mica andK-feldspar rich granites is the source of potassium. The lime-rich sedimentaryunits in the study area are the main source of calcium and magnesium. Besidethese units, the decomposition of Ca-feldspar, pyroxene and amphibole groupminerals formed the source of calcium, the chemical decomposition of pyroxeneand amphibole group minerals formed the source of magnesium. Chemicaldecomposition of basalt and granitic rocks and alteration of mudstone andsiltstone and chemical decomposition of siderite minerals form the geologicalsource of iron in the study area. The primary source of copper is the chemicaldecomposition of igneous rocks and the secondary source is the copperpreparations used in agricultural protection. Chemical decomposition of rockssuch as basalt, granite, schist and sandstone in the study area has been asource of zinc. Manganese transported from serpentines at higher elevations bysurface flow, groundwater-rock interaction and chemical decomposition., Buçalışma Çanakkale ili Ezine ilçesinde gerçekleştirilmiştir. Çalışmada zeytintarımı yapılan arazilerin verimlik durumlarının pedo-jeolojik yaklaşım ilebelirlenmesi amaçlanmıştır. Bu amaç doğrultusunda toplam 37 toprak örneğialınmıştır. Toprak örneklerinin fiziksel ve kimyasal özellikleri incelenerekCBS (Coğrafi Bilgi Sistemleri) ortamında IDW (Inverse Distance Weighted)yöntemi kullanılarak dağılım haritaları oluşturulmuştur. Sayısal jeolojiharitası ile parametrelere ait dağılım haritaları CBS ortamında üst üstekonumlandırılarak örtüşme (overlay) haritaları üretilmiştir. Elde edilen herbir parametre alanın jeolojisi ile birlikte yorumlanmıştır. Yapılan analizlersonucunda granitik kökenli kayaçların fazla olduğu alanlarda toprak bünyesininhafif-orta olduğu belirlenmiştir. Çalışma alanında sedimenter kırıntılımalzemelerin bol miktarda olması toprakların % CaCO3 içeriklerininyüksek ve pH değerlerinin hafif alkali olmasına neden olmuştur. Organik maddeiçeriğinin düşük olduğu bölgelerin kum miktarının daha yüksek alanlar olduğubelirlenmiştir. Fosforun bazalt, gabro, serpantin ve monzonit kayaçlarınınkimyasal ayrışması ve kimyasal gübrelemeden geldiği belirlenmiştir. PotasyumunK-feldspat ve mikaca zengin granitlerin kimyasal ayrışmasından kaynaklandığıgörülmüştür. Kireçli sedimenter birimlerin çalışma alanında fazla miktardabulunması kalsiyum ve magnezyumun ana kaynağını oluşturmuştur. Bu birimlerdışında Ca-feldspat, piroksen ve amfibol grubu minerallerin ayrışmasıkalsiyumun, piroksen ve amfibol grubu minerallerin kimyasal ayrışması isemagnezyumun diğer bir kaynağını oluşturmuştur. Çalışma alanındaki bazalt,granit kayaçlarının kimyasal ayrışması ve çamurtaşı ve silttaşı gibi birimlerimalterasyonu ile siderit minerallerinin kimyasal ayrışması demirin jeolojikkaynağını oluşturmaktadır. Bakırın birincil kaynağını magmatik kayaçlarınkimyasal ayrışması ikincil kaynağını ise zirai mücadelede kullanılan bakırlıpreparatlar oluşturmuştur. Çalışma alanında bazalt, granit, şist ve kumtaşıgibi kayaçların kimyasal ayrışması çinkonun kaynağı olmuştur. Yüksekarazilerdeki serpantinlerde bulunan mangan yüzeysel akış, yeraltı suyu-kayaçetkileşimi ve kimyasal ayrışma ile aşağıdaki arazilere taşınmıştır.
- Published
- 2018
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16. Applying multivariate statistics for identification of groundwater resources and qualities in NW Turkey
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Hasan Özcan and Timuçin Everest
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Multivariate statistics ,Turkey ,010504 meteorology & atmospheric sciences ,Lithology ,Water Wells ,Diagram ,Soil science ,General Medicine ,010501 environmental sciences ,Management, Monitoring, Policy and Law ,01 natural sciences ,Pollution ,Hierarchical clustering ,Identification (information) ,Water Quality ,Piper diagram ,Multivariate Analysis ,Facies ,Groundwater ,Water Pollutants, Chemical ,Geology ,Environmental Monitoring ,0105 earth and related environmental sciences ,General Environmental Science - Abstract
This study, performed in Canakkale-Ezine in NW of Turkey, analyzes the physicochemical properties of 37 groundwater wells. These 37 wells were chosen to represent each geological unit in the study area. The main purpose of the study and its contribution to the literature is to produce information about the resources and availability of groundwater by using multivariate statistical methods and lithology. For determination hydrochemical facies of groundwater, Piper trilinear diagram was used. Gibbs diagram was applied for determining the mechanism of groundwater chemistry and diagram showed that the interaction of rock-water is more dominant in the study area. Multivariate statistics were applied to physicochemical properties for identification origins of waters. According to the Piper diagram, 16 of the wells were identified as Ca-HCO3 type, 13 of them as Ca-Cl type, 5 of them as mixed Ca-Mg-Cl type, 2 of them as Na-Cl type, and 1 as Ca-Na-HCO3 type. In the study with the purpose of determining the resources of groundwater, the physicochemical properties of the wells are analyzed with hierarchical cluster (HCA) and non-hierarchical cluster (K-means) methods, and the resources are associated with the lithology based on these methods. A total of 37 wells are divided into five different clusters through the HCA method. Further, for the interpretation of the resources of the groundwater, the facies of the waters on the Piper diagram are evaluated based on the five clusters generated through the HCA method and on the lithology. In the study, the results obtained from the K-means method are not significant and in line with the lithology for the interpretation of the resources of the groundwater. In conclusion, this study with limited dataset reveals that using HCA method is very effective to identify the origins of groundwater and present the association with lithology.
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- 2019
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17. Solonchaks and Solonchak-Like Soils
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Hüseyin Ekinci, Mesut Budak, Hikmet Günal, Hasan Özcan, Ali Sungur, Mehmet Ali Çullu, and Timuçin Everest
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Solonchak ,Horizon (archaeology) ,Soil water ,Environmental science ,Soil science ,Soil surface - Abstract
Solonchaks are described as soils with a Salic horizon starting within ≤50 cm from the soil surface, and should not have a Thionic horizon starting within the ≤50 cm from the soil surface according to the IUSS Working Group WRB.
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- 2017
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18. Gleysols
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Hasan Özcan, Hüseyin Ekinci, Ali Sungur, and Timuçin Everest
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- 2017
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19. Vertisols
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Hasan Özcan, Salih Aydemir, Mehmet Ali Çullu, Hikmet Günal, Muhsin Eren, Selahattin Kadir, Hüseyin Ekinci, Timuçin Everest, Ali Sungur, and Ewart Adsil FitzPatrick
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040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,04 agricultural and veterinary sciences ,010501 environmental sciences ,01 natural sciences ,0105 earth and related environmental sciences - Published
- 2017
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20. Çanakkale İli Karamenderes Alt Havzası Taşkın Ovasının Çeltik Yetiştiriciliğine Uygunluğunun Arazi Değerlendirmesi
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Hasan Özcan and Timuçin Everest
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Arazi değerlendirme,coğrafi bilgi sistemi,çeltik - Abstract
Bu çalışma, Karamenderes havzası taşkın ovasının alt havzasını oluşturan Kumkale ovasında gerçekleştirilmiştir. Daha önce detaylı toprak etüt ve haritalama çalışması yapılan 3545 da alanda, arazilerin çeltik yetiştiriciliğine uygunluğu değerlendirilmiştir. Çalışmada, Coğrafi Bilgi Sistemi (CBS) kullanılarak oluşturulan veri tabanında her bir çeltik parselinin arazi değerlendirme haritası üzerindeki konumu sorgulanmış ve (FAO, 1977)'de belirtilen arazi uygunluk sınıfları içindeki yeri değerlendirilmiştir. (FAO, 1 977)'nin ön gördüğü prensiplere göre çalışma alanına toprak özellikleri (üst toprak tekstürü, alt toprak tekstürü, derinlik, kireç içeriği, vertik özellik, drenaj koşulları, yüzey taşlılığı, tuzluluk, organik madde içeriği ve pH), topoğrafya, bölge jeolojisi, iklim özellikleri ve sosyo-ekonomik verilere göre bir değerlendirme çalışması yapılmıştır. Çalışma sonucunda çeltik tarımı yapılan arazilerinin % 38,89'unun S1 (çok uygun), % 26,1 6'sının S3 (az uygun) ve % 34,45' inin N1 (geçici uygun değil) sınıfında olduğu belirlenmiştir. Çalışma alanında uygun olmayan bölgelerde yapılan üretim çeltik parsellerinde ve çevresinde taban suyu yükselmesi, diğer arazilere istenmeyen su hareketi, su kalitesindeki olumsuz etkiler, üretim maliyetinin artması ve üreticiler arası bazı sosyolojik problemlere neden olmaktadır. İncelenen alandaki ruhsatlandırmalar sürdürülebilir bir tarım açısından çok önemli sorunlar oluşturacak potansiyele sahiptir.
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- 2016
21. THE PROPERTIES AND COMPARISON OF THE VERTISOL SOILS FORMED ON DIFFERENT PHYSIOGRAPHIES
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Timuçin Everest and Hasan Özcan
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Soil water ,Environmental science ,Soil science ,Vertisol - Published
- 2016
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22. Karamenderes Ovası, Truva Bölgesi Sağ Sahil Fluviyal Topraklarının Sınıflandırılması
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Timuçin Everest and Hasan Özcan
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Fluviyal topraklar,sınıflandırma,toprak etüt,Truva,Fluviyal soils,classification,soil survey,Troia - Abstract
Bu çalışmada 3868,8 ha yüzölçümüne sahip Karamenderes Ovası' nın Truva bölümünde kalan sağ sahil arazilerinin detaylı toprak etüt ve haritalama çalışması yapılmıştır. Çalışmada temel kartoğrafik materyaller ve arazi gözlemleri kullanılarak toplam 14 profil açılmıştır. Arazi ve laboratuvar çalışmaları sonucunda 7 toprak serisinin tanımlandığı çalışmada topraklar, Toprak Taksonomisi (Soil Taxonomy) veDünya Toprak Kaynakları Referans Sistemi (WRB) istemlerine göre sınıflandırılmıştır. Çalışma sonucundaArapkuyu, Çaybayırı, Karabağ ve Set serisi toprakları Typic_Ustifluvents; Paleosol özellikte olan Dümrek serisi Thapto_Typic Ustifluvents; Çoraklar serisi toprakları ise Thapto_Mollic_Ustifluvents olarak sınıflandırılmıştır., In this study; Karamenderes Plain, Troy region right cost land's detailed soil survey and mapping work was carried out. In the study by using basic cartographic materials and land observations 14 profile were excavated. After laboratory and land work 7 soil series were desciribed. This series were classified in Soil Taxonomy and WRB systems. In the result of study soil series of Arapkuyu, Çaybayırı, Karabağ and Set were classified in Typic_Ustifluvents, which soils have paleosol properties were classified as Thapto_Typic_Ustifluvents; (Dümrek) and Thapto_Mollic_Ustifluvents; (Çoraklar).
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- 2015
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