Soil science - Topics

Farmland: a human artifact that still runs on natural cycles How earthworms and fungal networks build soil structure Where exactly does the taiga end and the tundra begin? Selective logging vs clear-cutting: what happens to the soil afterwards Carnivorous plants solve a nutrient shortage that soil cannot Telling soil types apart in the field without sending samples to a lab How salinisation turns irrigated farmland into white crusted ground How five factors decide which soil forms in a given place Why some soils hold water like a sponge and others drain instantly How do soil organisms build habitats for one another? Agricultural experiment plots that have been in the same crop rotation since 1876 What happens to burrowing animals when their soil is compacted? Why steep slopes erode faster under the same rainfall How terracing and check dams slow erosion on steep farmland Why rainforest soils are nutrient-poor despite all that plant growth Overwatering kills more houseplants than underwatering Why spreading compost does not fix compacted soil on its own Why the water table rises and falls with the seasons How lichen slowly breaks bedrock into soil Why badlands erode into sharp ridges so quickly What soil pH does to the nutrients plants can actually take up How decomposition returns nutrients to the soil Soil microbes do more for fertility than fertilizer does How deep do prairie roots reach compared with tropical forest roots? Nitrogen-fixing bacteria in root nodules: what does the plant pay in return? How long it takes to build an inch of topsoil and how fast it erodes Why the phosphorus cycle has no gas phase to move it around Why permafrost thaw is a self-reinforcing feedback How do you measure biodiversity in soil or in a single drop of seawater? What soil colour tells you about drainage and iron content Reading a soil profile: what each horizon actually means How fertilizer use has doubled the nitrogen cycle