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Congo Basin Peatlands: Carbon Locked Beneath Tropical Rainforest
刚果盆地泥炭地：热带雨林下的碳封存层
精读先不看文字，完整听一遍。
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Beneath the dense canopy of the Congo rainforest lies one of Earth’s largest tropical peatland complexes.刚果雨林浓密树冠之下，蕴藏着地球上规模最大的热带泥炭地复合体之一。
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These waterlogged soils accumulate partially decayed organic matter over millennia in near-oxygen-free conditions.这些积水土壤在近乎无氧的环境中，历经数千年积累部分腐解的有机质。
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Scientists estimate the basin stores over 30 billion tons of carbon—equivalent to three years of global fossil fuel emissions.科学家估算该流域储存碳超300亿吨，相当于全球三年化石燃料排放量。
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Peat depth varies from two to seven meters, with oldest layers dating back more than 17,000 years.泥炭厚度为2至7米，最古老层可追溯至1.7万多年前。
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Drainage for agriculture or logging would expose carbon-rich soils to oxidation and rapid CO₂ release.为农业或伐木而排水，将使富碳土壤暴露于氧化环境，导致二氧化碳迅速释放。
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Hydrological connectivity between rivers, swamps, and forest floors maintains stable water tables year-round.河流、沼泽与林下地表间的水文连通性，全年维持着稳定的地下水位。
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Indigenous communities have sustainably harvested palm fruits and fish without disturbing peat integrity for generations.原住民世代可持续采收棕榈果与鱼类，未破坏泥炭完整性。
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Remote sensing now maps surface inundation patterns to identify intact versus degraded peat zones.遥感技术现已用于绘制地表淹没模式，以识别完整或退化的泥炭区域。
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Unlike Arctic permafrost, this carbon reservoir remains vulnerable to subtle shifts in rainfall seasonality.与北极永久冻土不同，这一碳库极易受降雨季节性细微变化的影响。
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Its preservation depends on transboundary governance that recognizes both ecological function and spatial scale.其保护依赖于兼顾生态功能与空间尺度的跨境治理。
精读 · 大约 10 分钟
听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。
③ 学 · 重点表达
- These waterlogged soils accumulate partially decayed organic matter over millennia in near-oxygen-free conditions. 这些积水土壤在近乎无氧的环境中，历经数千年积累部分腐解的有机质。
- Hydrological connectivity between rivers, swamps, and forest floors maintains stable water tables year-round. 河流、沼泽与林下地表间的水文连通性，全年维持着稳定的地下水位。
- Remote sensing now maps surface inundation patterns to identify intact versus degraded peat zones. 遥感技术现已用于绘制地表淹没模式，以识别完整或退化的泥炭区域。
④ 懂 · 选一选
⑤ 今天会说这一句
These waterlogged soils accumulate partially decayed organic matter over millennia in near-oxygen-free conditions.
⑥ 跟读并录音
These waterlogged soils accumulate partially decayed organic matter over millennia in near-oxygen-free conditions.
第一版：录下来、回听、再听标准音。系统打分以后再加。
⑦ 说 · 自己来一句
用今天的表达，自己说一句。
例子：These waterlogged soils accumulate partially decayed organic matter over millennia in near-oxygen-free conditions.
已记下。连续天数以后会显示在课表里。
陈老师指导
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课程开发中，敬请期待。