Vegetation periods and changes in the Thrace (1965-2011)<p>Trakya’da vejetasyon süreleri ve değişimleri (1965-2011)
Journal Title: Journal of Human Sciences - Year 2017, Vol 14, Issue 3
Abstract
The existence and distribution of plants on the earth with one of the most important elements of the natural environment are determined by the abiotic and biotic conditions. Changes that occur in natural conditions and human activities are generally creating a negative effect and many plant species are facing in danger of extinction. One of these conditions, climate is main factor that directly affects the lives of plants and determines the existence and distribution of vegetation as globally, regionally and locally.The greenhouse effect caused by human activities in the last century and the global climate change can have impacts on the existence and spatial changes of plants. In this context, the effects of temperature conditions as the main factor on vegetation are examined according to the certain temperature values and duration. Mean daily temperature values of meteorological stations, which have long term observation record, in the study area, were analyzed statistically. As a result, dates of start, dates of finish and number of days and temporal changes of vegetation period are determined in this period.Extended English abstract is in the end of PDF (TURKISH) file.ÖzetDoğal ortamın en önemli unsurlarından olan bitkilerin varlığını ve yeryüzündeki dağılışını abiyotik ve biyotik koşullar belirlemektedir. Doğal koşullarda meydana gelen değişimler ve insan faaliyetleri, genellikle olumsuz etki yaratmakta ve birçok bitki türünün nesli tükenme tehlikesiyle karşı karşıya kalmaktadır. Bu koşullar içerisinde iklim doğrudan bitki yaşamını etkileyen ana faktör durumunda olup küresel, bölgesel ve yerel olarak vejetasyon topluluklarının varlığını ve mekânsal dağılışını belirlemektedir.Son yüzyılda insan faaliyetlerine bağlı olarak ortaya çıkan sera etkisi ve küresel iklim değişimi bitkilerin varlığı ile mekânsal değişimi üzerinde etkili olabilmektedir. Bu çerçevede, vejetasyon üzerinde ana etken durumunda olan sıcaklık koşullarının bitkiler üzerindeki etkisi, belirli sıcaklık değerleri ve süresine göre ele alınıp incelenmiştir. İnceleme alanında uzun dönem gözlem kaydı bulunan meteoroloji istasyonlarının günlük ortalama sıcaklık verileri istatistiki olarak analiz edilmiştir. Sonuç olarak incelenen bu dönem içerisinde vejetasyon devresinin başlangıç, bitiş tarihleri ve gün sayıları ile zamansal değişimi belirlenmiştir.
Authors and Affiliations
Derya Evrim Koç, Cercis İkiel
Keywords
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