The flow chart shows negative impacts on environment resulted from deforestation.
It is clear that the environment is affected by deforestation in four aspects, beginning with clear cutting of forests and ending with flooding and less biodiversity.
Firstly, forests are cut clearly. Because heavy logging equipment compresses the soil, it becomes hard and ‘baked’. Consequently, rain water runs off, leading to flooding.
Meanwhile, fewer roots hold the top soil in place as a result of deforestation so top soil erodes. Also, waste wood from logging is destroyed due to increased risk of deliberate and accidental burning; therefore, micro-organisms feeding on waste is lost. Plants return less moisture to air owing to loss of forests, resulting in less precipitation and then increased drought. These changes mentioned above provide conditions for pioneer species to move in and hence vegetation is degraded, finally leading to less biodiversity in forests.
- Many university students want to learn about different subjects in addition to their main subjects Others feel it is more important to give all their time and attention to studying for their qualification Discuss both views and give your opinion 61
- Convenience foods will become increasingly prevalent and eventually replace traditional foods and traditional methods of food preparation To what extent do you agree or disagree with this opinion 67
- Global warming is one of the most serious issues that the world is facing today What are the causes of global warming and what measures can governments and individuals take to tackle the issue 78
- Nowadays most people are using a lot of online language translation apps Are the advantages more than the disadvantages Write an essay of no less than 250 words 78
- The graph shows the percentage of UK adolescents following a vegetarian diet Summarise the information by selecting and reporting the man features