Fraxinus angustifolia Vahl. PLANTASYONLARINDA BÜYÜME PARAMETRELER? ÜZER?NE SIKLIK BAKIMININ ETK?S?

نویسندگان

چکیده

Bu çal??mada, Sinop yöresinde tesis edilen dar yaprakl? di?budak plantasyonlar?nda iki farkl? s?kl?k bak?m? müdahalesinin çap, gö?üs yüzeyi ve hacim art?m? üzerindeki etkilerinin ortaya koyulmas? amaçlanm??t?r. Dar plantasyonundan seçilen deneme alanlar?nda müdahalesi uygulanm??t?r. ?lk müdahalesinde (?1), dikimle gelen bireyleri alanda b?rak?lm?? ölçülmü?tür. Sonradan do?al olarak ise kesilerek alandan uzakla?t?r?lm?? bu ?ekilde kurulan aral?k mesafe (yakla??k 2x2 m) korunmaya çal???lm??t?r. ?kinci (?2), dikimden sonra di?budaklarla birlikte Deneme ay?klama müdahalelerine 2004 y?l?nda ba?lanm?? olup ilk ölçüm y?lda gerçekle?tirilmi?tir. Daha 2007 y?l? geli?me dönemi sonunda a?açlar?n çap de?erleri elde edilerek, üç y?ll?k art?m sonuçlar?na ba?l? de?erlendirmeler yap?lm??t?r. Üç (2004-2007 y?l?) art?m?na ili?kin kovaryans analizi sonucunda i?lemler aras?nda %99 güven düzeyinde istatistiksel anlaml? farkl?l?klar oldu?u koyulmu?tur. ?1 ?2 i?lemlerinin de?erlerinin s?ras?yla 1,51 cm 0,65 belirlenmi?tir. Gö?üs i?leminde 10,31 m2ha-1, 3,36 m2ha-1 de?erinde bir art?m?n meydana geldi?i tespit edilmi?tir. Toplam bak?m?ndan da i?lemi 93,01 m3ha-1 de?eri ile i?lemine (24,27 m3ha-1) göre oldukça yüksek de?erine sahip olmu?tur. Yap?lan çal??mada dikim alan?na sonradan yolla bireylerin uzakla?t?r?larak a?açlar 2 x m mesafesinin tekrardan sa?lanmas?n?n, gerek çap? art?m?, gerekse hektardaki toplam artmas? yönünde önemli etkiye

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ژورنال

عنوان ژورنال: Turkish journal of forest science

سال: 2021

ISSN: ['2618-6616']

DOI: https://doi.org/10.32328/turkjforsci.883791