In a forest in southern Chile, a giant tree has survived for thousands of years and is in the process of being recognized as the oldest in the world. Known as the "Great Grandfather," the trunk of ...

Tree growth is measured to understand tree health, fluxes in carbon sequestration, and other forest ecosystem functions. It is one of the most essential and widely collected woody plant traits. Yet, ...

Instructions for making and using a tree measuring stick are available from publication FNR-4: How to Make and Use the Tree Measuring Stick. Those instructions call for blueprint paper, which can be ...

Sidney Stevens is a writer and editor for magazines, websites, and books, with a focus on health and environmental issues. Champion trees are the super-sized superstars of their species. Blessed by a ...