Northeastern Part Of Turkey Research Articles

Landscape Change in Duzce Asarsuyu Basin Area

In this study, landscape change of the Asarsuyu Basin is determined some suggestions is proposed about natural resource management. It is emphasized that more actually and more contemporary supplication for the studies of decision making and planning with some results acquired from remote sensing (RS) and using Geographical Information Systems (GIS) in areas that contain different human and natural disturbances like Diizce. Rectification and classification of RS image at 1990 and 2000 years are maked by Erdas Imagine 8.7, datas about area are processed by Arcview 3.2. and landscape change and reasons with field exercises are interpreted. Landuse change in Asarsuyu Basin, situated in Duzce Province (northeastern part of Turkey), was determined according to five different type of the classification as (1) conifers (from 1030,95 ha to 450,27 ha); (2) deciduous (from 8477,37 ha to 7929,09 ha); (3) agricultural and flora (from 3492,36 ha to 2601,18 ha) that all were found to have a decreasing trend in terms of size; (4) building and hard surfaces built by civilization activities (from 1479,24 ha to 2504,16 ha); and (5) nuts (Corylus sp) (from 818,55 ha to 1978,65 ha) were determined to have an increased tendency. Tendency of Landscape change were determined from forestry and agricultural areas to building and hard surfaces built by civilization activities and nuts in Asarsuyu basin. GIS unit in local government should be improved with sustainable resource management principle, it should been support unit for obtaining plan decisions. Landscape change should be monitored specific times. In monitoring it should be done some research about determination of landscape structure and functions with technology RS and GIS.

Atmospheric trace element and major ion concentrations over the eastern Mediterranean Sea: Identification of anthropogenic source regions

Concentrations of elements and ions measured in aerosol samples collected from March 1992 to the end of December 1993 were investigated to identify source regions affecting chemical composition of aerosols in the eastern Mediterranean atmosphere. Collected samples were analyzed for approximately 40 elements and ions using a combination of atomic absorption spectrometry, instrumental neutron activation analysis, ion chromatography and colorimetry. Statistical techniques, such as enrichment factors and a non-parametric bootstrapped potential source contribution function, were applied on the data set to determine main source types and source regions of anthropogenic particles in the eastern Mediterranean basin. Source regions of two previously defined anthropogenic components, namely a long-range transported component and a local pollution component, were identified. The main source areas for pollutants reaching the eastern Mediterranean basin were determined as southern and western parts of Turkey, central and eastern regions of Ukraine, east of Belarus, Greece, Georgia, Romania, coastal areas along France and Spain and coastal areas around the Black Sea, Russia. More distant source regions in the South of UK and Sweden, the central part of Algeria, the northeastern part of Turkey, Russia, Germany, Hungary, Czech Republic, Bosnia and Herzegovina, and coastal areas of Egypt, Israel and Italy do affect aerosol composition in the eastern Mediterranean, but transport from these regions cannot account for the highest 20% of the measured pollutant concentrations.

Morphological and Anatomical Studies on Economically Important Empetrum nigrum L. Subsp. hermaphroditum (Hagerup) Bocher (Empetraceae)

The study is based on anatomical and morphological investigations of Empetrum nigrum L. subsp. hermaphroditum (Hagerup) Bocher, an important plant because of its value for medicine and food. Plant samples were collected from the northeastern part of Turkey. Morphological and anatomical features of various plant parts (e.g., stem, leaf, flower, and fruit) are illustrated and described in detail.

Characterization of extremely halophilic Archaea isolated from the Ayvalik Saltern, Turkey

Seven extremely halophilic strains were isolated from the Ayvalik Saltern in the north-eastern part of Turkey. Chemical analyses of the brine and salt samples were performed to measure their salt content, hardness and pH. Isolated strains were tested for their antibiotic sensitivities; cell and colony morphologies; hydrolysis of casein, starch, gelatin, Tween 20 and Tween 80; and oxidase and catalase activity. All strains were found to belong to the domain Archaea. Characterization of polar lipids by thin layer chromatography indicated that all isolates contained phytanyl diether derivatives of phosphatidylglycerol (PG), the methyl ester of phosphatidyl glycerophosphate (PGP-Me), and phosphatidylglycerosulphate (PGS). Four isolates had triglycosyl diether (TGD-2) as glycolipid, and the other three contained a sulphated diglycosyl diether instead. All isolates were examined for the presence of plasmids by agarose gel electrophoresis. Four strains were found to harbour plasmids ranging in size from 13.8 to 15.3 kbp. Correlation between the protein profiles in SDS–PAGE and the phenotypic properties of the strains was poor. The data presented here provide the first published account of the microbiota of the Ayvalik saltern, which provides a large part of the salt produced in Turkey.

A Preference Survey for Determining Recreation Potential of Natural Landscape Elements in the Coruh Basin of the Province of Artvin, Northeastern Part of Turkey: A Case Study

A Preference Survey for Determining Recreation Potential of Natural Landscape Elements in the Coruh Basin of the Province of Artvin, Northeastern Part of Turkey: A Case Study

Molecular Discrimination of Some Dogrose (Rosa Sp.) Growing Around Tokat Region in Turkey using RAPD Markers

ABSTRACTDogrose (Rosa sp.) that is grown naturally in many parts of Turkey is a plant of high economical value in food and drug industry and also have many other fields of usage. Tokat province located in northeastern part of Turkey is one of the main producers. In this study the genetic relationship between 14 Rosa sp. that were selected according to their high quality, grown around Tokat province was investigated by RAPD analysis. Results show that although the overall genetic similarity is quite high in Rosa sp. studied, variations depending on species and on geographical distance are also present.

Environmental Effects of the Acid Rains and Mine Drainage Around the Murgul VMS Copper Deposit, Eastern Pontides, Turkey

The Murgul copper deposit is located 7 km to the south of Murgul (Artvin) in the north-eastern part of Turkey and has been in modem operation since the 1940's. The deposit is hosted in dacitic pyroclastics of Upper Cretaceous and covered by acidic tufts, mudstone, micritic limestone and sandstone of Upper Cretaceous. The massive lens composed mainly of chalcopyrite and sphalerite is already mined out and the current production is from the stockwork zone within the dacitic pyroclastics. The ore is composed mainly of pyrite and chalcopyrite, and sphalerite, galena and sulphosalts to a lesser extent. There is a vertical variation in the chemistry and mineralogy of the deposit; sphalerite and galena increase towards upper levels of the deposit (Akqay and Tfiysiiz, 1998). Quartz is the main gangue mineral; baryte, sericite, gypsum, siderite and ankerite also occur in minor amounts. The stockwork zone is characterised by an intense silicic alteration grading outward into sericite and chlorite-rich zones (Schneider et al., 1988). The Murgul deposit has a reserve of 30,000,000 tons of ore grading at 0.97% Cu. Annual production is about 3 million tons of ore yielding 25000-30000 tons of Cu concentrate, 25000-30000 tons of sulphur and 10000-15000 tons of sulphuric acid (Akgay and Tfiysfiz, 1998). Karadeniz teknik Oniversitesi, Jeoloji Milk B61., 61080 Trabzon, Turkey

Statistical investigation of wind energy reliability and its application

Statistical behaviour of wind energy at a single site is derived by considering simultaneous variations in the pressure, temperature and wind speed measurements. The main purpose is to approximate the probability distribution function of the wind energy and consequently, provide a basis for assessing the risk and reliability associated with the energy assessments. The statistical parameters, namely, the mean value and variance of wind energy, are found in terms of simple statistical parameters of temperature, pressure and wind speed. The elegance of these parameters is that they are distribution free. These parameters provide a means for defining the wind energy distribution function by employing the Chebyschev's inequality. Necessary simple charts are given for the risk and reliability assessments. Two procedures are presented for such assessments in the wind energy calculations and the application of these procedures are provided for a wind energy potential area within the northeastern part of Turkey.