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.
- The chart below shows the annual rice production in 4 countries in 1995 2005 2015 73
- The users of social media such as Facebook Twitter are replacing face to face contact in this century Do you think the advantages of this way outweigh the disadvantages 61
- 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
- The flow chart illustrates the consequences of deforestation Summarize the information by selecting and reporting the main features and make comparisons where relevant
- The graph compares the percentage of theinternational and the percentage of UK student gaining second class degrees or better at a major UK university 67