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首页> 外文期刊>Eurasian Soil Science >Research on the Sedimentation and Erosion Problem of the Ergene River Basin in Western Turkey and Precautions to Control It
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Research on the Sedimentation and Erosion Problem of the Ergene River Basin in Western Turkey and Precautions to Control It

机译：土耳其西部额济纳河流域的沉积和侵蚀问题及其防治措施的研究

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The objective of this study was to asses the rainfall-runoff-sedimentation relationship from directly measured data since 1972, to find out the effect of the present land use and soil cultivation techniques on the sediment yield, and to offer practical solutions to the problems in the Ergene River Basins located in the European Part of Turkey. The suspended sediment yield was calculated by multiplying the daily average discharged water by the average sediment concentration, while the eroded coarse sediment yield was computed using a regression equation developed by the Japanese Ministry of Construction. The relationship between the runoff and suspended sediment rates was explained exponentially as S = 1.99 Q_A (P > 0.01 and R~2 = 0.846) (S is the suspended sediment rate in t d~(-1), and Q_A is the average daily runoff rate in m~3 s~(-1)). The suspended sediment rates of the Ergene Basin can then be predicted from the flow rate at any time of the year using this produced regression equation. According to the results, 70% of the basin's soil (9534 km~2 and occupying 81.76% of the total area of the region) is under erosion hazard varying in intensity, namely, 25.3% light, 34.6% moderate, 8.6% strong, and 1.5% very strong. 47.09% of the average 604 mmprecipitation falls in the critical period of October-January in terms of the sedimentation. The coarse and suspended sediment yield was 74.040 t km~(-2) per year, which was well below the average for Turkey. However, it was 2 and 2.5 times larger thanthe average for Europe and Africa, respectively. Because 76.93% of the eroded land is in the Irst, 2nd, and 3rd class, the severity of the sedimentation situation is proved. The causes of the high sediment yield were identified, and a series of precautions were suggested to minimize them.
机译：这项研究的目的是从1972年以来的直接测量数据来评估降雨-径流-沉降关系，以了解目前土地利用和土壤耕作技术对沉积物产量的影响，并为解决这些问题提供实用的解决方案。位于土耳其欧洲部分的埃尔金河流域。悬浮的泥沙产量是通过将每日平均排放水与平均泥沙浓度相乘得出的，而侵蚀的粗泥沙产量则使用日本建设省开发的回归方程进行计算。径流与悬浮泥沙速率之间的关系被指数解释为S = 1.99 Q_A（P> 0.01和R〜2 = 0.846）（S是td〜（-1）中的悬浮泥沙速率，Q_A是平均每日径流量速率以m〜3 s〜（-1）为单位）。然后，可以使用生成的回归方程从一年中的任何时间的流量预测Ergene盆地的悬浮沉积物速率。根据调查结果，流域的土壤有70％（9534 km〜2，占该地区总面积的81.76％）受到强度不同的侵蚀危害，即轻度25.3％，中度34.6％，强度8.6％，和1.5％非常强。就沉积而言，平均604毫米降水的47.09％落在10月至1月的关键时期。粗沙和悬浮沙的年产量为74.040 t km〜（-2），远低于土耳其的平均水平。但是，它分别是欧洲和非洲平均值的2倍和2.5倍。因为有76.93％的侵蚀土地处于Irst，2级和3级，所以证明了沉积情况的严重性。确定了高产沙量的原因，并提出了一系列预防措施以尽量减少它们。

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