This volume in the Forestry Sciences book series examines Eucalyptus plantation development in Southeast Asia, focusing on how innovative technologies can help balance socio-economic benefits with environmental sustainability. Drawing on research and practical experience from Malaysia and the broader Southeast Asian region, it explores ecological impacts, resource management, and community development within the context of large-scale forestry initiatives. The book reviews recent advances in biotechnology, soil and water conservation, fire risk mitigation, and biodiversity protection, alongside modern tools for productivity enhancement and monitoring. It also highlights the role of Eucalyptus in supporting emerging circular bioeconomy initiatives and creating new opportunities for rural livelihoods. Combining scientific evidence with actionable strategies, this work is an essential reading for researchers, practitioners, policymakers, and industry professionals committed to sustainable forestry and plantation management in tropical climates.