Erosion and sediment yield in the Krishna River basin, India
Erosion and sediment yield in the Krishna River basin, India
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印度克里希纳河流域的侵蚀和沉积物产量
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
V. Subramanian
中科院分区：
文献类型：
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作者：
V. Subramanian
克里希纳河的年泥沙负荷已被证明在6年期间随年径流量有规律地变化。在盆地的个别地区也观察到类似的关系。由于上游水坝的影响，排入孟加拉湾的泥沙量并不能真实反映实际泥沙负荷。对各子盆地的侵蚀速率计算表明，较小的盆地比较大的盆地侵蚀更快。侵蚀速率与流域面积的关系每年都是相似的。河口沉积物质地均匀，而上游地区粘土粉砂相对比例变化不均匀。河口可能是由于坝址的选择性沉积。的明显同质性
The annual sediment load of the Krishna River has been shown to vary regularly with annual runoff over a 6 year period. Similar relationships have also been observed for individual regions of the basin. The quantity of sediment discharged into the Bay of Bengal does not truly reflect the actual sediment load because of the influence of upstream dams. Rates of erosion calculated for various sub-basins indicate that smaller basins erode more rapidly than larger basins. Again, annual variations exist but the erosion rate/basin area relationship is similar every year. While at the river mouth the sediments are texturally uniform, in the upstream region the relative proportions of clay silt and sand vary erratically. river mouth is perhaps due to selective sedimentation at the dam sites. The apparent homogeneity at the