风蚀水蚀共同作用下沙漠河流泥沙级配特征

doi:10.7522/j.issn.1000-694X.2016.00181

摘要/Abstract

摘要： 以水蚀风蚀区内蒙古河段重要入黄支流西柳沟为研究对象，通过对西柳沟流域产沙地层及河流水文站悬移质泥沙采样分析和激光粒度仪测定，对研究区河道纵向、横向断面沉积的泥沙级配特征进行了分析，揭示了流域沉积泥沙粒径分布变化规律。结果表明：西柳沟流域沉积泥沙的中数粒径从上游丘陵沟壑区到下游农田区逐渐减小；河流右岸泥沙粒径较大，左岸泥沙粒径相对较小，河床泥沙粒径介于二者之间；流域沉积泥沙粒径主要分布在0.125~0.5 mm，而流域出口水文站悬移质泥沙粒径72.5%在0.025 mm以下，说明西柳沟进入黄河干流的泥沙主要为细泥沙。

关键词: 泥沙级配, 水蚀, 风蚀, 沙漠, 黄河

Abstract: Using sampling and laser particle analyzer, the suspended sediment load of was studied in the Inner Mongolia Xi Liu Gou reaches of Yellow River. The characteristic of the depositional sediment size distribution of transverse and longitudinal sections were also analyzed, and then the regularity of depositional sediment particle size distribution was revealed. The results showed that the sediment deposited of median particle diameter displayed a decreasing tendency from the up-stream hilly-gully region to downstream farmland area. The sediment diameter on right bank of river was bigger than that of left bank; the sediment article of riverbed was between that of right and left. The sediment particle sizes of the valley are mainly distributed in the range of 0.125 mm to 0.5 mm, but there was 72.5 percent of suspended sediment particle sizes under 0.025 mm in the basin export hydrological station, this revealed that the sediment from Xin Liu Gou valley to mainstream of Yellow River was chiefly the fine grain-size fractions.

Key words: particle size distribution, water erosion, wind erosion, desert, Yellow River

中图分类号:

P332.5

王金花, 张荣刚, 姚文艺, 李占斌, 郑晓梅. 风蚀水蚀共同作用下沙漠河流泥沙级配特征[J]. 中国沙漠, 2016, 36(6): 1695-1700.

Wang Jinhua, Zhang Ronggang, Yao Wenyi, Li Zhanbin, Zheng Xiaomei. Sediment Particle Size Distribution Characteristics in a Desert Gully Influenced by Coupled Aeolian and Fluvial Processes[J]. JOURNAL OF DESERT RESEARCH, 2016, 36(6): 1695-1700.

参考文献

[1] 许炯心."十大孔兑"侵蚀产沙与风水两相作用及高含沙水流的关系[J].泥沙研究,2013(6):28-37.
[2] Bullard J E,McTainsh G H.Aeolian-fluvial interactions in dry-land environments:examples and Australia case study[J].Progress in Physical Geography, 2003, 27:471-501.
[3] 冷春香,陈菊英.近50年中国汛期暴雨旱涝的分布特征及其成因[J].自然灾害学报,2005,14(2):1-9.
[4] 王楠,李栋梁,张杰.黄河中上游流域夏季异常降水的变化特征及环流分析[J].干旱区地理,2012,35(5):754-763.
[5] 张建,马翠丽,雷鸣,等.内蒙古十大孔兑水沙特性及治理措施研究[J].人民黄河,2013,35(10):72-74.
[6] 赵昕,汪岗,韩学士.内蒙古十大孔兑水土流失危害及治理对策[J].中国水土保持,2001,3:4-6.
[7] 李璇.西柳沟流域水沙流失特点及治理措施探讨[J].内蒙古水利,2013,1:89-90.
[8] 师长兴.近五百多年来黄河宁蒙河段泥沙沉积量的变化分析[J].泥沙研究,2010(5):19-25.
[9] 侯素珍,王平,常温花,等.黄河内蒙古河段冲淤量评估[J].人民黄河,2007,29(4):21-22.
[10] 王彦成,冯学武,王伦平,等.黄河上游干流水库对内蒙古河段的影响[J].人民黄河,1996,18(1):5-10.
[11] 舒培仙,牛东风,李保生,等.毛乌素沙地现代沙丘沙的粒度特征及其意义[J].中国沙漠,2016,36(1):158-166.
[12] 杨根生,拓万全,戴丰年,等.风沙对黄河内蒙古河段河道泥沙淤积的影响[J].中国沙漠,2003,23(2):152-159.
[13] 杜鹤强,薛娴,王涛,等.1986-2013年黄河宁蒙河段风蚀模数与风沙入河量估算[J].农业工程学报,2015,31(5):142-151.
[14] 吴保生,王永强,王彦君,等.黄河内蒙古河道冲淤及同流量水位的变化特点[J].泥沙研究,2015(3):8-14.
[15] 吴保生,刘可晶,申红彬,等.黄河内蒙古河段输沙量与淤积量计算方法[J].水科学进展,2015,26(3):311-321.
[16] 杨国录,向浩,余明辉,等.长江中下游枯水位与河床冲淤变化[J].武汉大学学报:工学版,2009,42(1):64-68.
[17] 朱玲玲,葛华,张细兵,等.长江中游非均匀沙冲淤对来水来沙响应初步分析[J].水力发电学报,2011,30(6):215-220,229.
[18] 许炯心.黄河内蒙古段支流"十大孔兑"侵蚀产沙的时空变化及其成因[J].中国沙漠,2014,34(6):1641-1649.
[19] 陈怀伟,任青山,曹颖梅.内蒙古西柳沟流域黄土丘陵沟壑区坝系工程规划及减沙效益分析[J].内蒙古水利,2008,4:69-70.
[20] 姚海芳,师长兴,邵文伟,等.基于SWAT的内蒙古西柳沟孔兑径流模拟研究[J].干旱区资源与环境,2015,29(6):139-144.
[21] 王金花,张荣刚,李占斌,等.内蒙古西柳沟流域致洪暴雨特征分析[J].中国水土保持,2014,8:39-41.
[22] 廖晓勇,陈治谏,刘绍权,等.三峡库区紫色土坡耕地不同利用方式的水土流失特征[J].水土保持研究,2005,12(2):159-161.
[23] 刘晓燕,侯素珍,常温花.黄河内蒙古河段主槽萎缩原因和对策[J].水利学报,2007,40(9):18-21.