The general health of forests can be estimated by the micro- and macronutrient content of tree leaves to help inform forest management decisions in light of climate change, species loss and other variables. Traditional methods of assessing nutrient levels in forests are expensive and labor-intensive. The general health of forests can be estimated by the micro- and macronutrient content of tree leaves to help inform forest management decisions in light of climate change, species loss and other variables. Traditional methods of assessing nutrient levels in forests are expensive and labor-intensive. Ecology Phys.org – latest science and technology news stories