Rainfall-runoff process and sediment yield in response to different types of terraces and their characteristics: A case study of runoff plots in Zhangjiachong watershed, China

被引:3
作者
Meng, Xianmeng [1 ,4 ]
Zhu, Yan [1 ]
Shi, Ruohui [1 ]
Yin, Maosheng [2 ]
Liu, Dengfeng [3 ]
机构
[1] China Univ Geosci, Sch Environm Studies, Wuhan, Peoples R China
[2] EIT Inst Adv Study, Ningbo, Peoples R China
[3] Xian Univ Technol, Sch Water Resources & Hydropower, Xian, Peoples R China
[4] China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China
基金
中国国家自然科学基金;
关键词
earth bank; rainfall-runoff process; sediment yield; stone dike; tank model; terrace; SOIL-EROSION; LAND DEGRADATION; LOESS PLATEAU; CONSERVATION; CATCHMENT; TRANSPORT; IMPACTS; MODEL; RATES;
D O I
10.1002/ldr.4998
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A field experiment was conducted in the Zhangjiachong watershed to analyze the characteristics of rainfall-runoff process and sediment yield under different types of terraces. Various runoff plots were utilized, and a two serial tank model was employed to simulate runoff generation and concentration processes, taking into account vegetation interception. A soil erosion model incorporating raindrop erosion and sheet erosion was established to replicate sediment yield and concentration process. The parameters of the rainfall-runoff model and soil erosion model were calibrated and validated using observed runoff and sediment yield data. The controlling factors on runoff and sediment yield were explored and compared. The results indicate that both calibration and validation outcomes were acceptable. The earth-banked terraces-citrus demonstrated the largest coefficients of upper and lower surface runoff, while its upper runoff threshold of the upper tank and the runoff threshold of the lower tank were the lowest, suggesting that it was more likely to produce surface and subsurface runoff. On the other hand, the stone dike terraces-crops exhibited the smallest coefficients of upper and lower surface runoff, while its upper runoff threshold of the upper tank was the highest. The lower runoff threshold of the upper tank was the same across different types of terraces. Compared to the earth-banked terraces, the stone dike terraces have a larger infiltration coefficient in the upper tank and a smaller infiltration coefficient in the lower tank. Sensitivity analysis indicates that the most sensitive factors affecting runoff simulation results are the runoff threshold and the infiltration coefficient of the lower tank. Terraces, whether constructed with earth banks or stone dikes, are effective in reducing soil erosion. However, during storm rainfall events, these terraces may be partially destroyed, resulting in a higher sediment yield than that of the same vegetation cover on slope land. Terraces with hedgerows have a more significant effect on reducing runoff and sediment than those without hedgerows.
引用
收藏
页码:1449 / 1465
页数:17
相关论文
共 51 条
  • [1] Modelling soil erosion in a Mediterranean watershed: Comparison between SWAT and AnnAGNPS models
    Abdelwahab, O. M. M.
    Ricci, G. F.
    De Girolamo, A. M.
    Gentile, F.
    [J]. ENVIRONMENTAL RESEARCH, 2018, 166 : 363 - 376
  • [2] The Effect of Water Harvesting Techniques on Runoff, Sedimentation, and Soil Properties
    Al-Seekh, Saleh H.
    Mohammad, Ayed G.
    [J]. ENVIRONMENTAL MANAGEMENT, 2009, 44 (01) : 37 - 45
  • [3] BEASLEY DB, 1980, T ASAE, V23, P938, DOI 10.13031/2013.34692
  • [4] Land use and climate change impacts on global soil erosion by water (2015-2070)
    Borrelli, Pasquale
    Robinson, David A.
    Panagos, Panos
    Lugato, Emanuele
    Yang, Jae E.
    Alewell, Christine
    Wuepper, David
    Montanarella, Luca
    Ballabio, Cristiano
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (36) : 21994 - 22001
  • [5] Cai C., 2000, J SOIL WATER CONSERV, V14, P19, DOI [10.13870/j.cnki.stbcxb.2000.02.005, DOI 10.13870/J.CNKI.STBCXB.2000.02.005]
  • [6] Landscape pattern and sustainability of a 1300-year-old agricultural landscape in subtropical mountain areas, Southwestern China
    Cao, Yu
    Wu, Yuhuan
    Zhang, Yangjian
    Tian, Jie
    [J]. INTERNATIONAL JOURNAL OF SUSTAINABLE DEVELOPMENT AND WORLD ECOLOGY, 2013, 20 (04) : 349 - 357
  • [7] Effects of terracing practices on water erosion control in China: A meta analysis
    Chen, Die
    Wei, Wei
    Chen, Liding
    [J]. EARTH-SCIENCE REVIEWS, 2017, 173 : 109 - 121
  • [8] Experimental study on soil erosion characteristics in flooded terraced paddy fields
    Chen, Shih-Kai
    Chen, Yi-Ron
    Peng, Yi-Huei
    [J]. PADDY AND WATER ENVIRONMENT, 2013, 11 (1-4) : 433 - 444
  • [9] Advantages and disadvantages of terracing: A comprehensive review
    Deng, Chuxiong
    Zhang, Guangye
    Liu, Yaojun
    Nie, Xiaodong
    Li, Zhongwu
    Liu, Junyu
    Zhu, Damei
    [J]. INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH, 2021, 9 (03) : 344 - 359
  • [10] Integrating RUSLE model with remote sensing and GIS for evaluation soil erosion in Telkwonz Watershed, Northwestern Ethiopia
    Eniyew, Solomon
    Teshome, Menberu
    Sisay, Endalkachew
    Bezabih, Tamiru
    [J]. REMOTE SENSING APPLICATIONS-SOCIETY AND ENVIRONMENT, 2021, 24