Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape

Volume: 66 Number: 2 July 1, 2016
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Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape

Abstract

Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape

Abstract: Determination of the ecophysiological characteristics of deciduous trees in the recreational areas allows construction of planning objectives particularly for the urban forests. Analysis of a multipurpose vegetation parameter; LAI (Leaf Area Index) together with some meteorological variables supplies to an extent the comprehension of those ecophysiological characteristics. Around this scope, the LAI dynamics of Carpinus betulus L. trees in a recreational area were monitored and analyzed along the foliation period of approximately three months. The mean LAI which was only 0.80 during the budburst stage gradually escalated reaching 1.49 after the flushing stage. The increment of the leaves in size and numbers led to the mean LAI achieve its climax with 3.41 in early May. Then, the mean LAI experienced a stable period until the end of May. The change in the mean LAI were subjected to correlation test especially with the air and soil temperatures. The correlations between the mean LAI and, in particular the soil temperature (r≥0.95) and air temperature were high and significant (P<0.01). There were no definite correlation between the mean LAI and mean sunlight duration, air humidity and total precipitation. Impact of air temperature on the LAI of Carpinus betulus L. trees indicates the vulnerability of the recreational area to possible urban heat oriented climate warming. On the other hand, the influence of soil temperature on the mean LAI warns the susceptibility of the recreational area to possible anthropogenic pressure resulting in soil compaction and regeneration difficulties. Consequently, sustainable management of this recreational area necessitates the anticipation and mitigation of these possible destructions.

Keywords: Carpinus betulus L., recreational area, canopy architecture, Leaf Area Index (LAI), hemispherical photographs.

Yarı-kırsal rekreasyonel orman peyzajında yapraklanma dönemi boyunca Avrupa gürgeninin ekofizyolojik değişimi

Özet: Rekreasyon alanlarında bulunan yaprak döken ağaçlarınn ekofizyolojik özelliklerinin tespit edilmesi, bilhassa kent ormanları için planlama hedeflerinin tesis edilmesine imkân sunar. Çok amaçlı bir bitki örtüsü göstergesi olan YAİ’nin (Yaprak Alan İndisi) bazı meteorolojik değişkenlerle birlikte analiz edilmesi bu ekofizyolojik özelliklerin bir nebze anlaşılmasına yardım eder. Bu çerçevede, bir rekreasyon alanında bulunan Carpinus betulus L. ağaçlarının YAİ dinamikleri, yaklaşık üç ay süren yapraklanma dönemi boyunca izlenmiş ve analiz edilmiştir. Tomurcuklanma döneminde sadece 0.80 olan ortalama YAİ, kademeli olarak artarak yaprak verme döneminden sonra 1.49’a ulaşmıştır. Yaprakların boyut ve sayılarındaki artış, ortalama YAİ’nin 3.41 ile Mayıs başında zirvesine ulaşmasına neden olmuştur. Daha sonra ortalama YAİ, Mayıs sonuna kadar sabit bir dönem geçirmiştir. YAİ’deki değişim, özellikle hava ve toprak sıcaklıkları ile korelasyon testine tabi tutulmuştur. Ortalama YAİ ile hususen toprak sıcaklığı olmak üzere (r≥0.95) ve hava sıcaklığı (r≥0.84) arasında yüksek ve önemli (P<0.01) korelasyonlar mevcuttur. YAİ ile ortalama güneşlenme süresi, hava nemi ve toplam yağış arasında belirgin bir korelasyon söz konusu değildir. Hava sıcaklığının Carpinus betulus L. ağaçlarının YAİ’si üzerindeki etkisi, rekreasyon alanının, şehrin ısısına bağlı muhtemel bir sıcaklık artışından zarar görme ihtimalini ortaya koymaktadır. Öte yandan, toprak sıcaklığının ortalama YAİ üzerindeki etkisi, rekreasyon alanının, toprak sıkışması ve gençleşme güçlüğüne yol açan muhtemel insan baskısına hassasiyetini vurgulamaktadır. Dolayısıyla, bu rekreasyon alanının sürdürülebilir yönetimi, olası tahribatların öngörülmesini ve hafifletilmesini gerektirir.

Anahtar Kelimeler: Carpinus betulus L., rekreasyon alanı, tepe çatısı mimarisi, Yaprak Alan İndisi (YAİ), yarıküre fotoğraflar

Received (Geliş): 09.01.2016 - Revised (Düzeltme): 22.01.2016 - Accepted (Kabul): 01.02.2016

Cite (Atıf): Ozturk, M., Gokyer, E., Dogan, I.A., 2016. Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape. Journal of the Faculty of Forestry Istanbul University 66(2): xxx-xxx. DOI: 10.17099/jffiu.xxxxx

Keywords

References

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Details

Primary Language

English

Subjects

-

Journal Section

-

Publication Date

July 1, 2016

Submission Date

January 9, 2016

Acceptance Date

-

Published in Issue

Year 2016 Volume: 66 Number: 2

APA
Öztürk, M., Gökyer, E., & Doğan, İ. (2016). Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape. Journal of the Faculty of Forestry Istanbul University, 66(2), 628-635. https://doi.org/10.17099/jffiu.94437
AMA
1.Öztürk M, Gökyer E, Doğan İ. Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape. J FAC FOR ISTANBUL U. 2016;66(2):628-635. doi:10.17099/jffiu.94437
Chicago
Öztürk, Melih, Ercan Gökyer, and İbrahim Doğan. 2016. “Ecophysiological Variation of European Hornbeams Along the Foliation Period in Semi-Rural Recreational Forest Landscape”. Journal of the Faculty of Forestry Istanbul University 66 (2): 628-35. https://doi.org/10.17099/jffiu.94437.
EndNote
Öztürk M, Gökyer E, Doğan İ (July 1, 2016) Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape. Journal of the Faculty of Forestry Istanbul University 66 2 628–635.
IEEE
[1]M. Öztürk, E. Gökyer, and İ. Doğan, “Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape”, J FAC FOR ISTANBUL U, vol. 66, no. 2, pp. 628–635, July 2016, doi: 10.17099/jffiu.94437.
ISNAD
Öztürk, Melih - Gökyer, Ercan - Doğan, İbrahim. “Ecophysiological Variation of European Hornbeams Along the Foliation Period in Semi-Rural Recreational Forest Landscape”. Journal of the Faculty of Forestry Istanbul University 66/2 (July 1, 2016): 628-635. https://doi.org/10.17099/jffiu.94437.
JAMA
1.Öztürk M, Gökyer E, Doğan İ. Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape. J FAC FOR ISTANBUL U. 2016;66:628–635.
MLA
Öztürk, Melih, et al. “Ecophysiological Variation of European Hornbeams Along the Foliation Period in Semi-Rural Recreational Forest Landscape”. Journal of the Faculty of Forestry Istanbul University, vol. 66, no. 2, July 2016, pp. 628-35, doi:10.17099/jffiu.94437.
Vancouver
1.Melih Öztürk, Ercan Gökyer, İbrahim Doğan. Ecophysiological variation of European hornbeams along the foliation period in semi-rural recreational forest landscape. J FAC FOR ISTANBUL U. 2016 Jul. 1;66(2):628-35. doi:10.17099/jffiu.94437