Original ResearchPublished 2 October 2026Assessing forest ecological sustainability through wavelet decomposition and stationarity tests: a comparative analysis of major forest product producersİlkay Güler · Mustafa Naimoğlu · Sefa Özbek · Zafer Adalı · Orhan ŞimşekFrontiers in Forests and Global Changedoi 10.3389/ffgc.2026.1622811