What aspect does arboriculture focus on?

Arboriculture specifically focuses on the care and maintenance of individual trees and small groups of trees, rather than large-scale forest management or ecosystem management. Professionals in arboriculture are trained to understand tree biology, health, and maintenance practices, ensuring the well-being and longevity of urban and suburban trees. This field emphasizes activities like pruning, planting, pest management, and health assessment, which are critical for the sustainability and functional health of trees in populated areas. While other options involve aspects of plant management and ecological systems, they do not reflect the specialized attention to individual trees that arboriculture entails.