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The Amur-Heilong Basin: Transboundary Floodplain Connectivity Across Political and Ecological Boundaries
阿穆尔-黑龙江流域：跨越政治与生态边界的泛滥平原连通性
精读先不看文字，完整听一遍。
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The Amur-Heilong River flows over 4,400 km across Russia, China, and Mongolia, linking boreal forests to floodplain wetlands.黑龙江（阿穆尔河）全长逾4400公里，流经俄罗斯、中国和蒙古，连接北方针叶林与泛滥平原湿地。
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Seasonal flooding reconnects main channels with oxbow lakes and backswamps, maintaining fish spawning habitats across national borders.季节性洪水使干流重新连通牛轭湖与滞水沼泽，维系跨国界的鱼类产卵栖息地。
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Satellite time-series show flood extent varies by ±35% annually, influencing sediment deposition and nutrient exchange patterns.卫星时序数据显示，每年洪水淹没范围波动达±35%，影响泥沙沉积与养分交换格局。
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Dams upstream in China alter flow timing, reducing peak floods that historically triggered lateral connectivity in Russian floodplains.中国境内上游水坝改变了径流时间，削弱了历史上触发俄罗斯泛滥平原横向连通的峰值洪水。
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Riparian vegetation belts follow hydrological gradients more closely than administrative boundaries do.河岸植被带更紧密地沿水文梯度分布，而非行政边界。
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Cross-border monitoring reveals synchronized declines in sturgeon populations tied to disrupted migration corridors.跨境监测显示，鲟鱼种群同步衰退，与迁徙廊道受阻密切相关。
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Wetland restoration projects now coordinate on both banks using shared hydrodynamic models and elevation data.湿地修复项目现依托共享的水动力模型与高程数据，在两岸协同开展。
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Permafrost thaw in headwater tributaries increases sediment loads downstream, affecting delta morphology near the Sea of Okhotsk.源区支流多年冻土融化加剧下游泥沙负荷，影响鄂霍次克海附近三角洲地貌。
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This basin illustrates how fluvial processes operate beyond geopolitical frameworks through physical continuity.该流域表明，河流过程借由物理连续性超越地缘政治框架运行。
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Its management requires joint spatial planning that treats the floodplain as a single functional unit.其管理需联合空间规划，将泛滥平原视为单一功能单元。
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
- Riparian vegetation belts follow hydrological gradients more closely than administrative boundaries do. 河岸植被带更紧密地沿水文梯度分布，而非行政边界。
- Cross-border monitoring reveals synchronized declines in sturgeon populations tied to disrupted migration corridors. 跨境监测显示，鲟鱼种群同步衰退，与迁徙廊道受阻密切相关。
- This basin illustrates how fluvial processes operate beyond geopolitical frameworks through physical continuity. 该流域表明，河流过程借由物理连续性超越地缘政治框架运行。
④ 懂 · 选一选
⑤ 今天会说这一句
Riparian vegetation belts follow hydrological gradients more closely than administrative boundaries do.
⑥ 跟读并录音
Riparian vegetation belts follow hydrological gradients more closely than administrative boundaries do.
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：Riparian vegetation belts follow hydrological gradients more closely than administrative boundaries do.
已记下。连续天数以后会显示在课表里。
陈老师指导
课程开发中，敬请期待。成人和孩子都可以先自学听读、精读。
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课程开发中，敬请期待。