干旱区研究 ›› 2025, Vol. 42 ›› Issue (11): 2031-2043.doi: 10.13866/j.azr.2025.11.07
杨亚飞1,2(
), 张秋芬2, 吕锡芝2(
), 王帅1,2, 倪用鑫2, 王建伟2, 张恒硕2, 马力2
收稿日期:2025-05-15
修回日期:2025-07-01
出版日期:2025-11-15
发布日期:2025-12-13
通讯作者:
吕锡芝. E-mail: nihulvxizhi@163.com作者简介:杨亚飞(2001-),女,硕士研究生,主要从事水土保持和生态水文研究. E-mail: yangyafei1006@163.com
基金资助:
YANG Yafei1,2(
), ZHANG Qiufen2, LYU Xizhi2(
), WANG Shuai1,2, NI Yongxin2, WANG Jianwei2, ZHANG Hengshuo2, MA Li2
Received:2025-05-15
Revised:2025-07-01
Published:2025-11-15
Online:2025-12-13
摘要: 黄河“几字弯”区域作为黄河流域重要产沙区及水蚀风蚀交错地带,其水沙关系受风沙活动与极端降水的双重干扰,呈现高度复杂性。基于黄河“几字弯”毛不拉孔兑、西柳沟和皇甫川流域1964—2020年的水文气象数据,采用Mann-Kendall检验、双累积曲线法和累积距平法等,揭示了水沙时空变化规律及驱动因素。结果表明:(1) 三个流域年径流量和输沙量均显著下降,但下降速率未完全遵循自西向东梯度变化,表明人类活动调控效应超越了自然地理梯度约束。(2) 水沙突变年份与关键生态工程实施时间高度吻合,如毛不拉孔兑、西柳沟对应退耕还林还草政策的实施及淤地坝建设,皇甫川对应禁牧政策。(3) 研究流域水沙锐减主要由人类活动驱动,其对径流和输沙减少的平均贡献率达90%以上,且调控效应随生态治理工程持续推进显著增强。研究成果可为黄河流域差异化生态治理提供科学依据。
杨亚飞, 张秋芬, 吕锡芝, 王帅, 倪用鑫, 王建伟, 张恒硕, 马力. 黄河“几字弯”典型半干旱小流域水沙变化及驱动机制[J]. 干旱区研究, 2025, 42(11): 2031-2043.
YANG Yafei, ZHANG Qiufen, LYU Xizhi, WANG Shuai, NI Yongxin, WANG Jianwei, ZHANG Hengshuo, MA Li. Trends and influencing factors of water-sediment variation in the semiarid reaches of the Yellow River’s “Ji Zi Bend”[J]. Arid Zone Research, 2025, 42(11): 2031-2043.
表2
径流量和输沙量年际变化"
| 年均径流量/104 m3 | 年均输沙量/104 t | ||||||
|---|---|---|---|---|---|---|---|
| 毛不拉孔兑 | 西柳沟 | 皇甫川 | 毛不拉孔兑 | 西柳沟 | 皇甫川 | ||
| 1964—1970年 | 2982.29 | 16922.86 | 401.38 | 5727.43 | |||
| 1971—1980年 | 3527.60 | 16885.00 | 440.66 | 5749.00 | |||
| 1981—1990年 | 2032.89 | 2532.20 | 12523.00 | 1052.18 | 669.60 | 4362.20 | |
| 1991—2000年 | 1905.49 | 3256.60 | 8594.00 | 365.08 | 402.25 | 2506.70 | |
| 2001—2010年 | 708.43 | 2005.09 | 3370.70 | 211.64 | 131.46 | 881.40 | |
| 2011—2020年 | 323.97 | 1457.84 | 2925.90 | 12.29 | 54.23 | 349.83 | |
| 最大值 | 8785.00 | 8562.00 | 43700.00 | 7158.67 | 4761.94 | 15400.00 | |
| 最小值 | 49.01 | 568.40 | 0.00 | 0.03 | 0.01 | 0.00 | |
| 多年平均 | 1222.43 | 2608.41 | 9849.93 | 393.84 | 353.41 | 3133.04 | |
| Cv | 1.35 | 0.72 | 0.92 | 2.99 | 2.01 | 1.16 | |
表8
降水对流域径流量的影响"
| 流域 | 时段 | 实测值/108 m3 | 计算值/108 m3 | 实测径流量变化 | 降水影响 | 非降水影响 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 变化量/108 m3 | 占比/% | 变化量/108 m3 | 占比/% | 变化量/108 m3 | 占比/% | ||||||
| 毛不拉孔兑 | MP1 | 0.114 | 0.114 | ||||||||
| MP2 | 0.219 | 0.148 | 0.105 | 92.1 | 0.034 | 32.4 | 0.071 | 67.6 | |||
| MP3 | 0.050 | 0.126 | -0.064 | -56.1 | 0.012 | -18.8 | -0.076 | 118.8 | |||
| 西柳沟 | XP1 | 0.311 | 0.311 | ||||||||
| XP2 | 0.187 | 0.352 | -0.124 | -39.9 | 0.041 | -33.1 | -0.165 | 133.1 | |||
| 皇甫川 | HP1 | 1.432 | 1.432 | ||||||||
| HP2 | 0.412 | 1.347 | -1.020 | -71.2 | -0.085 | 8.3 | -0.935 | 91.7 | |||
表9
降水对流域输沙量的影响"
| 流域 | 时段 | 实测值/108 t | 计算值/108 t | 实测输沙量变化 | 降水影响 | 非降水影响 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 变化量/108 t | 占比/% | 变化量/108 t | 占比/% | 变化量/108 t | 占比/% | ||||||
| 毛不拉孔兑 | MP1 | 0.031 | 0.031 | ||||||||
| MP2 | 0.079 | 0.039 | 0.048 | 154.8 | 0.008 | 16.7 | 0.04 | 83.3 | |||
| MP3 | 0.012 | 0.033 | -0.019 | -61.3 | 0.002 | -10.5 | -0.021 | 110.5 | |||
| 西柳沟 | XP3 | 0.036 | 0.036 | ||||||||
| XP4 | 0.080 | 0.048 | 0.044 | 122.2 | 0.012 | 27.3 | 0.032 | 72.7 | |||
| XP5 | 0.015 | 0.044 | -0.021 | -58.3 | 0.008 | -38.1 | -0.029 | 138.1 | |||
| 皇甫川 | HP1 | 0.480 | 0.480 | ||||||||
| HP2 | 0.099 | 0.462 | -0.381 | -79.4 | -0.018 | 4.7 | -0.363 | 95.3 | |||
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