Browsing by Author "Savaci, G"
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Web of Science Ecological assessment of heavy metals in soil around a coal-fired thermal power plant in Turkey(2020.01.01) Turhan, S; Garad, AMK; Hancerliogullari, A; Kurnaz, A; Goren, E; Duran, C; Karatasli, M; Altikulac, A; Savaci, G; Aydin, AWeb of Science Effect of Different Land Uses (Mature and Young Fir Stands-Pasture and Agriculture Sites) on Soil Organic Carbon and Total Nitrogen Stock Capacity in Kastamonu Region(2017.01.01) Sariyildiz, T; Savaci, G; Maral, ZWeb of Science Effects of Iron-Steel Factory and Dense Traffic on Leaf Chemical Compounds of Six Tree Species in Turkey(2018.01.01) Turfan, N; Savaci, G; Sariyildiz, TWeb of Science Effects of stand age on litter quality, decomposition rate and nutrient release of Kazdagi fir (Abies nordmanniana subsp. equi-trojani)(2020.01.01) Savaci, G; Sariyildiz, TWeb of Science Effects of tree species, stand age and land-use change on soil carbon and nitrogen stock rates in northwestern Turkey(2016.01.01) Sariyildiz, T; Savaci, G; Kravkaz, ISWeb of Science Erosion Risk Mapping Using CORINE Methodology for Goz Watershed in Kahramanmaras Region, Turkey(2016.01.01) Reis, M; Akay, AE; Savaci, GWeb of Science EVALUATION OF THE SOIL PROPERTIES AND PRIMARY FOREST TREE SPECIES IN TASKOPRU (KASTAMONU) DISTRICT(2018.01.01) Kravkaz-Kuscu, IS; Sariyildiz, T; Cetin, M; Yigit, N; Sevik, H; Savaci, GWeb of Science INITIAL LITTER QUALITY VARIABLES AND DISTURBED SITE CHARACTERISTICS BY FOREST HARVESTING PRACTICES INFLUENCE LITTER DECOMPOSITION RATES OF SCOTS PINE, TROJAN FIR AND SWEET CHESTNUT IN NORTHWEST OF TURKEY(2016.01.01) Enez, K; Sariyildiz, T; Aricak, B; Savaci, GWeb of Science Relationship between Enzyme Activity (Urease-Catalase) and Nutrient Element in Soil Use(2018.01.01) Kuscu, ISK; Cetin, M; Yigit, N; Savaci, G; Sevik, HWeb of Science Web of Science The Effects of Windthrow Damage on Soil Properties in Scots Pine, Black Pine and Kazdagi Fir Stands in the Northwest Turkey(2021.01.01) Savaci, G; Sariyildiz, T; Caglar, S; Kara, F; Topal, EWeb of Science Variation in Some Chemical Compounds of the Uludag fir and Scots Pine Needles in relation to Stand Age and Some Soil Properties(2016.01.01) Turfan, N; Savaci, G; Sariyildiz, TWeb of Science Publication Variations in Biochemical Compounds of Fresh Leaves of Castanea sativa in Relation to Elevation and Stand Age(2022-06-01) Savaci G.; Savaci, GThis study investigated the effects of elevation and stand age on the photosynthetic pigments and antioxidant enzymes activities of Castanea sativa leaves. Leaves of C. sativa were collected at 470 m above sea level in stands ranging in age from 15- to 85-year-old and were compared for 13- to 65-year-old with leaves collected at 810 m. Chlorophyll pigments as chlorophyll a (Chl a), chlorophyll b (Chl b) and carotenoids, antioxidant enzymes activities (ascorbate peroxidase, superoxide dismutase, catalase), on-enzymatic compounds (total soluble protein levels, proline), flavonoid, and the oxidative level (hydrogen peroxide (H2O2), lipid peroxidation (MDA-malondialdehyde)) of fresh leaves were analyzed using a UV–visible spectrophotometer. Significant differences in the biochemical compounds of Castanea sativa leaves were found between elevation and stand age. In general, photosynthetic pigments (except for the ratio of chlorophyll a:chlorophyll b), proline, and soluble protein levels, as well as ascorbate peroxidase and superoxide dismutase, had better results at higher elevations than at lower elevations, whereas flavonoids, malondialdehyde, and hydrogen peroxide concentrations, as well as catalase activity, were lower at higher elevations. Results have shown that total chlorophylls, chlorophyll b, proline, at both elevations and catalase enzymes activities at only 810 m were decreased with increasing in stand age whereas chlorophyll a : chlorophyll b at both elevations and total carotenoids at only 810 m were increased with increasing. However, other chemical compounds (chlorophyll a, superoxide dismutase, hydrogen peroxide, lipid peroxidation levels) did not show a significant trend with the stand age. This study has provided valuable insight into the variation in the biochemical compounds of C. sativa leaves in relation to the elevation and stand age, and the results of this study can contribute to the determination of ideal site factors for the growth and development of chestnut trees.