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GCSE Geography · key term
Dead organic material, such as fallen leaves, on the ground.
Used by AQA, Edexcel and OCR
Specification 3.1.2.1 · Paper 1
Dead organic material on the ground, including fallen leaves and twigs.
Revise: Ecosystem Roles and Nutrient CyclingNutrients move repeatedly between three important stores: living organisms, litter and soil. In deciduous woodland, trees shed their leaves, adding material to the litter store. As decomposers break down the litter, nutrients enter the soil.
Specification 3.4, 3.7 · Paper 1
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Dead organic material, such as fallen leaves and animal remains, lying on the ground before it decomposes.
Less living vegetation eventually supplies less litter for decomposition, so nutrient recycling is disrupted. The exposed soil becomes more vulnerable to erosion, while reduced transpiration can reduce the moisture available for rainfall. Humans therefore depend on the rainforest but can also alter the relationships that keep it functioning.
Dead organic matter, such as fallen leaves and dead organisms, lying on the ground.
Paper 3
Revise: Rainforest characteristicsA rainforest nutrient cycle has three main stores: biomass, the living organisms; litter, dead organic material; and soil.
Dead organic material, such as fallen needles and branches, lying on the ground.
Specification 4.2a · Paper 1, Paper 3
Dead organic material, such as fallen leaves, on the soil surface.
Revise: Rainforest BiodiversityA rainforest's nutrient cycle moves them between three main stores: biomass, litter and soil. Biomass is living material; litter is dead material on the ground, such as fallen leaves.