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When autumn rolls around, the leaf peepers come out in force. Armed with digital cameras, they record the most spectacular displays of fall foliage1. Well according to a study in the journal Functional2 Ecology [Toshie Mizunuma et al., The relationship between carbon dioxide uptake and canopy3 colour from two camera systems in a deciduous4 forest in southern England], those images may be more than just pretty pictures. They may represent a new way to monitor climate change.
Trees take carbon dioxide, or CO2, from the atmosphere and convert it into biomass. By sopping5 up CO2 they help to stabilize6 the climate. But at the same time, they’re also affected7 by climate, for example, budding earlier in the season as global temperatures rise.
To understand how all this balances out, ecologists monitor how forests take up CO2. It’s a costly8 business that involves using a network of 500 instrument towers worldwide. So researchers got to wondering whether there might be an easier way to keep an eye on photosynthesis9. And they found that digital cameras do the trick.
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1 foliage | |
n.叶子,树叶,簇叶 | |
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2 functional | |
adj.为实用而设计的,具备功能的,起作用的 | |
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3 canopy | |
n.天篷,遮篷 | |
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4 deciduous | |
adj.非永久的;短暂的;脱落的;落叶的 | |
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5 sopping | |
adj. 浑身湿透的 动词sop的现在分词形式 | |
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6 stabilize | |
vt.(使)稳定,使稳固,使稳定平衡;vi.稳定 | |
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7 affected | |
adj.不自然的,假装的 | |
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8 costly | |
adj.昂贵的,价值高的,豪华的 | |
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9 photosynthesis | |
n.光合作用 | |
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10 analyzing | |
v.分析;分析( analyze的现在分词 );分解;解释;对…进行心理分析n.分析 | |
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11 proxy | |
n.代理权,代表权;(对代理人的)委托书;代理人 | |
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12 photosynthetic | |
adj.光合的,促进光合作用的 | |
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