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Contemporary International Relations 2024年第3期34卷 52-78页

作者：李亚男 the Institute of Middle East Studies at China Institutes of Contemporary International Relations

Over the past century since the Republic of Türkiye was founded,its national security mechanisms have undergone a process of transformation from military-dominated to civilian government-dominated,and the ideology guiding its national security strategy has gradually transitioned from Kemalism to Erdo?*** the present stage,Türkiye's national security strategy is prominently characterized by its geographical and cultural duality,the expansivity deep-rooted in its history and religion,and an enterprising response to its geopolitical *** a strategy will comprehensively shape Türkiye's practice of preserving national security and guide the future of its security policies,prompting the country to seek a balance between its differentiated perceptions of identity and generalized national interests.

关键词： diverse identity national security strategy turkiye

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Effect of Talus Deposit Excavations on Hydrogeochemical Characteristics of Kuvars Spring Water, Maltepe, Istanbul, Turkey

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Journal of Water Resource and Protection 2012年第5期4卷 294-306页

作者： Rustem Pehlivan Hasan Emre Deniz Key Department of Geological Engineering Istanbul University Avcilar Istanbul Turkey Yeldegirmeni Sokak Belgin Apt. Kadikoy Istanbul Turkey

Spring waters consumed for drinking purposes should be clean and quality. These waters with balanced mineral distribution, which do not contain organic substances, whose physical and chemical caharacteristics comply with certain quality parameters and which do not negatively affect human health are identified as healthy water. Kuvars water is a spring water which is pumped out from the draw well at the Camurluk stream basin of Maltepe province of Istanbul and filled into bottles. The Camurluk stream basin is approximately 4.5 km2. The Camurluk stream basin is sedimentary rocks and talus deposit outcrops. Reaching of trace elements, which is found more in the talus deposit samples than outcropping quartzarenite at the basin, to underground aquifer as ions under effect of rains, water rock interaction, leakage and filtration, is prevented by illite type clay levels existing within the talus deposit stack, which have upto 20 cm thickness. However, negative effects of the excavation that were made at the talus deposit reflect on the hydrologic cycle and chemical compositions of well waters. This effect was at first negatively affected the physical characteristics of the well waters. During the rainy periods, the water in the excavated area which was enriched with respect to the suspended sediments was percolated into the groundwaters from the joints and cracks of the quartzarenite. The turbidity value measured in the well waters of K2 and K3 were determined as 40.3 NTU and 34.2 NTU respectively. Although at the basin, the aquifer of underground water and the well waters being managed are quartzarenite, the fact that water types belonging to well waters differ (they are not same) according to the Piper diagram and when the heavy metal content of the water of well numbered KS1 is taken as basis, that some heavy metals such as Al3+, Fe2+, Ni2+, Mn2+ and Cu2+ be enriched 3 to 40 times in KS2 and KS3 well waters, are caused by talus deposit—water interaction at the excavatio

关键词： Hydrogeochemistry Kuvars Water Talus Deposit Excavation Water Guality turkiye

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