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What causes soil erosion?

Soil erosion has been mentioned several times already during this course but how does it occur? Soil erosion can be a severe problem, watch this short film on YouTube about …

Studying soils at Lancaster Environment Centre

If you have enjoyed this course why not consider studying soils at Lancaster University? We offer undergraduate, taught postgraduate and postgraduate research degrees in a range of relevant subject areas. …

Conclusion

During this course we have learned about the basics of soil science and their environmental context. This short video summarises the course. Watch it and tell us what you think. …

Soils and invasive species

An invasive species is one that has been accidentally or deliberately introduced to an area and threatens native biodiversity. Invasive plants can do this in several ways, one of which …

Soils and air pollution

Air pollution is a major factor in global change but one pollutant people are less familiar with is atmospheric nitrogen deposition. Nitrogen is an important soil nutrient but it can …

Practical activity – measuring soil pH

Soil acidification was highlighted in the previous video as a side effect of atmospheric nitrogen deposition. There are other acidifying pollutants in the atmosphere such as sulphur. In order to …

Soils and climate change – changing rainfall

One of the consequences of climate change is likely to be changes in rainfall patterns. This will have consequences for soil chemistry. Former Lancaster University PhD student Kirsty Ross is …

Global threats to soil

The term global environmental change refers to environmental changes that have an impact at a global scale. We will be focusing on human-induced global change – environmental change bought about …

Soil contamination

Contamination of soils with pollutants from industrial processes is yet another threat to soils but like erosion this is an area where research is underway to try and remediate soils. …

Practical activity – surface sealing

Soil erosion is only one of the threats to soils. Another threat is surface sealing. Surface sealing is the covering of the soil surface with impervious materials. This mainly occurs …

The importance of soil

We have seen the importance of soils through history but why are they still so important and why are they under threat? Think of some reasons why you think soil …

Preserving water through irrigation

Plants are a very important part of life in the soil and soil is essential for the majority of plants. Plants impact on soils in a wide variety of ways. …