盐池地区不同下垫面输沙率特征

doi:10.16843/j.sswc.2023013

Abstract
Figure/Table
References
Related Citation (5)

Download: PDF (922 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract [Background] The ecological environment of the Yanchi area is fragile, and sand erosion will affect the ecological environment and sustainable development of the region. Changes in wind erosion environments can be detected through a quantitative analysis of the dynamic wind erosion processes. Characteristics of changes in sediment discharge over long time scales affect to varying degrees the planning and implementation of sand management measures in arid regions. Quantitative analyses of sediment discharge and wind speeds on different underlying surfaces in the study area are of reference value for the deployment of wind and sand control projects on different underlying surfaces in the study area.[Methods] The wind speeds and monthly and annual weights of sand accumulation were measured at the Liuyaotou wind erosion experimental station, and the sediment discharge was calculated using the sediment discharge equation. The data was from five types of wind erosion samples (moving dune, semi-fixed dune, fixed dune, shrub-land and barren grassland) at the Liuyaotou wind erosion experimental station from 2010 to 2019. Immediately, sediment discharge concentration (R_CD), sediment discharge concentration period (R_CP), sediment discharge inter-annual variation coefficient (S_v), and sediment discharge inter-annual extremum ratio (S_w) were calculated. We also fitted the sediment discharge and wind speed by regression analysis to explore the response of sediment discharge to wind speed variation.[Results] 1) The underlying surface affected the magnitude and the uniformity of the sediment discharge, and there were some differences in the concentration and concentration period values of sediment discharge on five kinds of different underlying surfaces. The smallest average value of content and concentration was in shrub-land, indicating that the stable intra-annual variation occurred in the shrub-land. And the corresponding months of the concentration period were in May and June in shrub-land. The maximum annual sediment discharge in fixed dunes shifted forward over the course of the 10-year period. While the annual maximum sediment discharge in barren grassland shifted back in time. 2) Both the research on the inter-annual variation coefficient and the inter-annual extremum ratio indicated a higher degree of inter-annual variability of sediment discharge from the moving dune than from the shrub-land in the study area. The instability of the inter-annual variation coefficient from the moving dune was extremely high, and it was small from shrub-land. 3) The exponential function better reflected the relationship between sediment discharge and wind speed for the semi-fixed dune, for which the R² was 0.843, while the best fit of sediment discharge and wind speed for the other underlying surfaces was the power function. 4) A cubic function was a good expression of the relationship between the average sediment discharge in each year and the wind speed in each year. The fitting formula was:Q=65.42-93.36V+42.55V²-6.00V³ (R²=0.800). There were two wind speed thresholds (1.74 and 2.99 m/s) that caused the response of the sand transport rate to wind speed to change.[Conclusions] There is an effect of underlying surface type on the variation coefficient and extremum ratio of sediment discharge. Meanwhile, there are critical values where the sediment discharged in response to wind speed. The results of this study could be used in the construction of wind and sand measures in the Yanchi region, providing a scientific basis and technical support for the comprehensive management of the Yanchi wind erosion region.

Key words： sediment discharge inter-annual variation intra-annual variation Yanchi area of Ningxia

Received: 07 February 2023

PACS:

S157.1

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Guojun
	SHEN Ziya
	WEI Xiaoyan
	REN Zhengyan
	XU Zhiyou
	MA Wentao
	CHENG Jinhua
	WANG Xiao

Cite this article:

ZHANG Guojun,SHEN Ziya,WEI Xiaoyan, et al. Characteristics of sediment discharge in different underlying surface in the Yanchi area[J]. SSWC, 2024, 22(2): 99-106.

URL:

http://journal12.magtechjournal.com/Jweb_stbc/EN/10.16843/j.sswc.2023013 OR http://journal12.magtechjournal.com/Jweb_stbc/EN/Y2024/V22/I2/99

[1]	张越,陈思宇,毕鸿儒,等.干旱半干旱区农田土壤风蚀特征及参数化研究进展[J].中国沙漠, 2022, 42(3):105. ZHANG Yue, CHEN Siyu, BI Hongru, et al. Characteristics and parameterization of farmland soil wind erosion in arid and semi-arid areas of China:Progress and challenges[J]. Journal of Desert Research, 2022, 42(3):105.
[2]	刘玉璋,董光荣,李长治.影响土壤风蚀主要因素的风洞实验研究[J].中国沙漠, 1992, 12(4):9. LIU Yuzhang, DONG Guangrong, LI Changzhi. Study on some factors influencing soil erosion by wind tunnel experiment[J]. Journal of Desert Research, 1992, 12(4):9.
[3]	周炎广,武子丰,胡日娜,等.毛乌素沙地新垦地土壤风蚀特征[J].农业工程学报, 2020, 36(1):138. ZHOU Yanguang, WU Zifeng, HU Rina, et al. Characteristics of soil wind erosion in new reclaimation land of Mu Us sandy land, China[J]. Transactions of the CSAE, 2020, 36(1):138.
[4]	王翔宇,朴东均,丁国栋,等.流动沙丘风沙流结构的定量研究[J].水土保持研究, 2008.15(2):36. WANG Xiangyu, PIAO Dongjun, DING Guodong, et al. Study of the wind-sand flow structure on flowing sand[J]. Research of Soil and Water Conservation,2008,15(2):36.
[5]	康永德,何清,杨兴华,等.基于野外观测的风沙流跃移和蠕移运动规律研究[J].干旱区资源与环境, 2017, 31(5):119. KANG Yongde, HE Qing, YANG Xinghua, et al. Research on saltation and creeping laws of wind-blown currents based on field observations[J]. Journal of Arid Land Resources and Environment,2017, 31(5):119.
[6]	黄富祥,牛海山,王明星,等.毛乌素沙地植被覆盖率与风蚀输沙率定量关系[J].地理学报, 2001, 56(6):700. HUANG Fuxiang, NIU Haishan, WANG Mingxing, et al. The relationship between vegetation cover and sand transport flux at Mu Us sandland[J]. Acta Geographica Sinica, 2001, 56(6):700.
[7]	罗玉,秦宁生,周斌,等.长江源区沱沱河流域1961-2011年径流特征及其对降水的滞后效应[J].水土保持通报, 2019, 39(2):22. LUO Yu, QIN Ningsheng, ZHOU Bin, et al.Runoff characteristics and hysteresis to precipitation in Tuotuo River basin in source region of Yangtze River during 1961-2011[J]. Bulletin of Soil and Water Conservation, 2019, 39(2):22.
[8]	陆莎莎,夏小明.浙江鳌江干流水沙通量变化规律探讨[J].人民长江, 2015, 46(S1):47. LU Shasha, XIA Xiaoming.Exploring the variation pattern of water and sediment flux in the main stream of Aojiang River in Zhejiang[J]. Yangtze River, 2015, 46(S1):47.
[9]	陈亚宁,李卫红,李向军,等.新亚欧大陆桥新疆段风沙流活动特性及停积规律[J].自然灾害学报, 2001, 10(4):42. CHEN Yaning, LI Weihong, LI Xiangjun, et al. Characteristics of activity and sediment of wind-sand current in Xinjiang line of New Eurasian Continental Bridge[J]. Journal of Natural Disasters, 2001, 10(4):42.
[10]	LIU Jiaqi,KIMURA R, MIYAWAKI M, et al. Effects of plants with different shapes and coverage on the blown-sand flux and roughness length examined by wind tunnel experiments[J]. Catena, 197:104976.
[11]	包岩峰,丁国栋,吴斌,等.毛乌素沙地风沙流结构的研究[J].干旱区资源与环境, 2013, 27(2):118. BAO Yanfeng, DING Guodong, WU Bin, et al. Study on the wind-sand flow structure in Mu Us sandy land[J]. Journal of Arid Land Resources and Environment,2013, 27(2):118.
[12]	毛东雷,雷加强,王翠,等.新疆策勒县沙漠-绿洲过渡带风沙流结构及输沙粒度特征[J].水土保持通报, 2015, 35(1):25. MAO Donglei, LEI Jiaqiang, WANG Cui, et al.Characteristics of sand flow structure and sand transportation particles in Cele Desert-Oasis Ecotone of Xinjiang Wei autonomous region[J]. Bulletin of Soil and Water Conservation, 2015, 35(1):25.
[13]	刘旭阳,宁文晓,王振亭.两种戈壁地表风沙流特征的野外观测[J].干旱区研究, 2020, 37(4):1087. LIU Xuyang, NING Wenxiao, WANG Zhenting. Sand flux characteristics in two areas of the Gobi Desert[J]. Arid Zone Research, 2020, 37(4):1087.
[14]	ZHANG Lujun, QIAN Yongpu. Annual distribution features of precipitation in China and their inter-annual variations[J]. Acta Meteorologica Sinica, 2003, 17(2):146.
[15]	张志华,姚娜,胡彩虹,等.陆浑水库汛期入库径流及降雨变化特征分析[C]//面向未来的水安全与可持续发展:第十四届中国水论坛论文集.长春:中国水利水电出版社,2016:96. ZHANG Zhihua, YAO Na, HU Caihong, et al. Analysis of the characteristics of incoming runoff and rainfall changes during the flood season in Luhun Reservoir[C]//Water Security and Sustainable Development for the Future:Proceedings of the 14th China Water Forum. Changchun:China Water&Power Press,2016:96.
[16]	杨远东,王永红,蔡斯龙,等. 1960-2017年珠江流域下游径流年际与年内变化特征[J].水土保持通报, 2019, 39(5):23. YANG Yuandong, WANG Yonghong, CAI Silong, et al. Interannual and intra-annual variation characteristics of runoff in downstream areas of Pearl River basin during 1960-2017[J]. Bulletin of Soil and Water Conservation,2019, 39(5):23.
[17]	唐艳,刘连友,屈志强,等.植物阻沙能力研究进展[J].中国沙漠, 2011, 31(1):43. TANG Yan, LIU Lianyou, QU Zhiqiang, et al. Research review of capacity of plant for trapping blown sand[J]. Journal of Desert Research, 2011, 31(1):43.
[18]	殷婕,安晶,哈斯额尔敦,等.库布齐沙漠南缘风沙-植被相互作用及其景观效应[J].生态学报, 2022, 42(21):8869. YIN Jie, AN Jing, HASI Erdun, et al.Interaction between aeolian processes and vegetation and its landscape effect in the southern fringe of Hobg Desert[J]. Acta Ecologica Sinica, 2022, 42(21):8869.
[19]	杨远东,王永红,蔡斯龙,等.珠江流域下游近60年输沙率年际与年内变化特征[J].水土保持研究, 2021, 28(2):155. YANG Yuandong, WANG Yonghong, CAI Silong, et al. Characteristics of interannual and intra-annual variation of sediment discharge in the Pearl River basin over the past 60 Years[J]. Research of Soil and Water Conservation, 2021, 28(2):155.
[20]	韦开,王全九,周蓓蓓,等.基于降水距平百分率的陕西省干旱时空分布特征[J].水土保持学报, 2017, 31(1):318. WEI Kai, WANG Quanjiu, ZHOU Beibei, et al. Analysis of drought characteristics in Shaanxi province based on precipitation anomaly percentage[J]. Journal of Soil and Water Conservation, 2017, 31(1):318.
[21]	陶彬彬,哈斯额尔敦,乌格特茉勒,等.库布齐沙漠南缘抛物线形沙丘表面风速与输沙率的变异[J].中国沙漠, 2015, 35(6):1445. TAO Binbin, HASI Eerdun, WUGETE Mole, et al. Variation of surface wind velocity and sand transport of parabolic dune at southern fringe of the Hobq Desert[J]. Journal of Desert Research, 2015, 35(6):1445.
[22]	FRYBERGER S G, DEAN G. Dune forms and wind regime[C]//MCKEE E D.A study of global sand seas. Washington:United States Government Printing Office, 1979:137.