Long description

This is a more comprehensive pictorial diagram of the carbon cycle over land, on a local scale. The diagram is divided into above ground labelled ‘air’ and below ground labelled ‘soil’. Above ground there is a drawing of a by a tree and grass. Unlabelled arrows show that leaves from the tree fall to the ground, that the giraffe eats leaves and produces excrement which falls to the ground. A box near the top of the diagram contains the text ‘CO2 in air’. An arrow from that box flows to the trees and is labelled ‘photosynthesis’. An arrow from the tree and one from the giraffe flow to the box and are labelled ‘respiration’. Below the ground, there are five boxes with text. Four are in a line above the remaining one. From the left the top four read: ‘litter’, ‘plants’, ‘animals’, ‘excretion’. From each of these an arrow flows to the fourth box. The arrows are collectively labelled ‘death and decomposition’ and the final box reads ‘organic matter’. An arrow flows from that box to the ‘CO2 in air’ box.