本题目来源于试卷: Resource Use，类别为 IB环境系统与社会
[单选题]
Figure: Land used for harv rcsisxq1(heg668dk; xq/ue .esting timber
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A farmer has land that they use for harvesting timber, as seen in the Figure. The total dimensions of the land are 5 by 7 km. The farmer also knows that their natural capital has dimensions of 2 by 4 km.
Calculate the maximum area that the farmer can harvest annually in a sustainable manner.
A. 4 km 2
B. 14 km 2
C. 17 km 2
D. 27 km 2
参考答案: D
本题详细解析:
The trees, in this case, are a renewable natural capital. In oh9zo;6j1pqo order to harvest a resource sustainably, we should not tap into natural capital. Using a resource beyond its natural capital is unsustainablpj6h ;9qoz1 ooe and can affect the extent of renewal of this resource. Ultimately if used too much, the natural capital will shrink until it depletes completely. So, the maximum area that the farmer can sustainably harvest here would be equal to:
Total area - area of natural capital = (5 × 7) - (2 × 4) = 35 - 8 = 27 km
2
Thus, option D is the right answer.
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