西伯利亚北极河流有机碳输出特征及影响要素
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刘诗奇, 王平, 王田野, 黄其威, 于静洁
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Characteristic analysis of organic carbon output and its affecting factors of Arctic rivers in Siberia
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LIU Shiqi, WANG Ping, WANG Tianye, HUANG Qiwei, YU Jingjie
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表1 西伯利亚三大流域基本地理环境特征及人口数据统计
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Tab. 1 Geographical characteristics and demographic statistics of the three Siberian river basins
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| 鄂毕河 | 叶尼塞河 | 勒拿河 | 来源文献 | | 汇入海域 | 喀拉海 | 拉普捷夫海 | [11] | | 海域面积(104 km2) | 661.5 | 363.2 | | 海域DOC汇入(Tg/a) | 11.1 | 8.26 | | 流域面积(104 km2) | 311 | 257 | 247 | [1] | | 257 | 258 | 242 | [39] | | 299 | 254 | 246 | [9] | | 295 | 244 | 243 | [32] | | 流域平均海拔(m) | 305 | 769 | 608 | [1] | | 流域平均坡度(°) | 1.98 | 4.90 | 4.91 | | 平均土壤厚度(cm) | 216 | 93 | 49 | | 年均降水量(mm) | 393 | 356 | 337 | | 年均气温(℃) | -0.6 | -4.5 | -8.6 | | 土壤有机碳(kg/m3) | 20 | 12.6 | 12.9 | | 年径流量(km3) | 404~419 | 562~577 | 524~533 | [39] | | 405 | 626 | 525 | [33] | | 427 | 673 | 588 | [9] | | 410 | 610 | 540 | [32] | | 多年冻土覆盖率(%) | 4~18 | 36~66 | 78~94 | [33] | | 4 | 42 | 90 | [39] | | 连续多年冻土占比(%) | 1 | 31 | 77 | [9] | | 人口密度(人/km2) | 8 | 3 | 0.4 | | 7 | 2 | 1 | [1] |
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