IELTS Writing Task 1: 雅思写作混合类图表作文
Mixed graphs writing – Land Degradation
Land Degradation STEP-BY-STEP SAMPLE ANSWER
SAMPLE INTRODUCTION “The pie chart outlines the key factors as to why land used for agriculture produces less over time, while the table gives a breakdown of the effect these causes had on agricultural land in three regions during the 1990s.”
“Overall, over-grazing, deforestation, and over-cultivation are all significant causes of land degradation globally, but the causes of less productive land in specific regions varies.”
“The pie chart shows that over-grazing by livestock is the most significant factor in land becoming degraded with 35% of land being affected in this way. However, this is closely followed by deforestation (30%) and over-cultivation (28%), with the remaining 7% being made up of other causes.”
“With respect to the table, it is clear that in the 1990s the North American region had the lowest amount of degraded land at just 5%. Of this land, about two-thirds was damaged by over-cultivation, just under a third by over-grazing, and a minimal amount by deforestation. In contrast, at the same time almost a quarter (23%) of arable land in Europe was degraded. Unlike the American region, the main factor in Europe was deforestation, with 9.8% of total land affected. Moreover, over-cultivation (7.7%) and over-grazing (5.5%) were also majorly responsible for the deterioration of land quality. In the final region, Oceania, the main cause of land degradation was clearly over-grazing with 11.3% of land being affected by this out of a total of 13% of land degraded in total. Conversely, over-cultivation appeared to play no role in this part of the world, while deforestation affected only a relatively small amount (1.7%)”
The charts compare the amount of water used for agriculture, industry and homes around the world, and water use in Brazil and the Democratic Republic of Congo.
It is clear that global water needs rose significantly between 1900 and 2000, and that agriculture accounted for the largest proportion of water used. We can also see that water consumption was considerably higher in Brazil than in the Congo.
In 1900, around 500km³ of water was used by the agriculture sector worldwide. The figures for industrial and domestic water consumption stood at around one fifth of that amount. By 2000, global water use for agriculture had increased to around 3000km³, industrial water use had risen to just under half that amount, and domestic consumption had reached approximately 500km³.
In the year 2000, the populations of Brazil and the Congo were 176 million and 5.2 million respectively. Water consumption per person in Brazil, at 359m³, was much higher than that in the Congo, at only 8m³, and this could be explained by the fact that Brazil had 265 times more irrigated land.
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