Tropical rainforests lie along the equator, mainly between the Tropics of Cancer and Capricorn. Rainforests have four main layers: the emergent, the canopy, the under canopy and the forest floor.

This helps the plants and trees to flourish. Similar to a tropical rainforest, deciduous woodland is made up of four different layers. Depending how wet it is on the ground, you may find mosses ...

and a ground layer of herbaceous vegetation. Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes. Net primary productivity ranges from 2–3 kg ...

NASA also pioneers the development and testing of new technologies for observing tropical forests, including hyperspectral sensors that observe more than 200 wavelengths of light reflected from the ...

A study in Forest Ecosystems shows that particulate organic carbon (POC) dominates surface soils, while mineral-associated ...