Population and the Environment 0.0 / 5 ? GeographyPopulation change and migrationA2/A-levelAQA Created by: JessicaMPascoeCreated on: 19-03-19 15:20 Fully developed soil that are mature and have developed from the interaction between climate vegetation and parent rock over a long period of time Zonal 1 of 26 When water moves minerals and nutrient down through the soil profile Leaching 2 of 26 What are the distinct layers in the soil profile called? Soil horizons 3 of 26 How many soil horizons are there? Five 4 of 26 What are the horizons - in order of surface to bedrock? O, A, E, B, C 5 of 26 Soil that occurs in cool temperate climates in the northern hemipshere, where there is more precipitation than evaoptranspiration Podzols 6 of 26 Layer of needles or leaf litter in podzols O horizon 7 of 26 Narrow and acidic horizon in podzols A horizon 8 of 26 Why is the water travelling through the soil more able to dissolve certain minerals (Fe and Al compounds) in podzols? Acidic 9 of 26 What is the E horizon mostly made up of in podzols? Quartz sand + silt 10 of 26 What accumulates in the B horizon in podzols? Minerals 11 of 26 What causes very few crops to grow on podzols, apart of it's acidity? Lack of nutrients 12 of 26 What is a hard, continuous layer of deposited iron called in podzols? Hard pan 13 of 26 Where does the hard pan develop? B horizon 14 of 26 This makes ploughing difficult as the machinery sinks - due to the formation of a hard pan Waterlogging 15 of 26 What type of farming is difficult on podzols? Arable 16 of 26 What is a common human activity on podzols - due to the coniferous trees Forestry 17 of 26 What colour are latosols? Deep red 18 of 26 Where are latosols found? Tropical rainforests 19 of 26 What encourages fast chemical weathering of bedrock in latosols, apart from the high temperatures? Humidity 20 of 26 'Year-round plant growth means that the O horizon is quite.....' Thick 21 of 26 What is organic matter in the A horizon called? Humus 22 of 26 What does the rainfall being higher than evapotranspiration cause in rainforests? Soil moisture surplus 23 of 26 What horizon does the build up of minerals in the soil form, in the latosols Laterite 24 of 26 Once the rainforest trees are removed, the soil has no protection from heavy rainfall, what does this increase? Leaching 25 of 26 What adaptation (apart from burning vegetation) have humans developed to live with latosols? Slash and burn 26 of 26
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