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[1]LIN Tingwu,GAO Jianen,LONG Shaobo,et al.Regulation of Different Standard Extreme Rainfall Erosion in Loess Hilly and Gully Region[J].Research of Soil and Water Conservation,2019,26(06):114-119,132.

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Regulation of Different Standard Extreme Rainfall Erosion in Loess Hilly and Gully Region

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 06 Page number: 114-119,132 Column: Public date: 2019-10-17

Title:: Regulation of Different Standard Extreme Rainfall Erosion in Loess Hilly and Gully Region

Author(s):: LIN Tingwu¹, GAO Jianen^1,2, LONG Shaobo¹, DOU Shaohui¹, ZHANG Haochen¹, LI Xinghua³; 1. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. Reaserch Center on Soil & Water Conservation of Ministry of Water Resources, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi, China;
3. College of Water Resources and Architectural Eng, Northwest A & F University, Yangling, Shaanxi 712100, China

Keywords:: orchards; erosion control factors; extreme rainfall; simulatedrainfall in the field

CLC:: S157.4

DOI:: -

Abstract:: In view of the frequent occurrence of extreme rainstorms in the Loess Hilly and gully region, which seriously threatens the safety of terraced orchards, the research on the regulation and control of extreme rainstorm erosion with different standards weak. In this study, field simulated rainfall experiments were carried out on 20-year-old terraced orchards in Fangta, Yan’an. The effects of three control factors, fruit trees, slope vegetation and slope litter, on erosion control were studied rainfall intensity increas from once in a hundred years to once in ten thousand years. The results show that:(1) with no control measures, the water reduction rate of litter increased from 44.11% to 52.55%, the water reduction rate of vegetation on slope increased from 22.81% to 26.98%, and the effect of fruit trees on runoff reduction had threshold value, which was between 4.49 to 5.81 L/m²; (2) comparing with no control measures, the reduction of erosion and sediment yield by fruit trees, slope vegetation and litter increased with the increase of rainfall intensity. However, the sediment reduction rate of slope vegetation decreases with the increase of rainstorm standard, and the sediment reduction rate of fruit trees is positively correlated with the increase of rainstorm standard. When the rainfall standard exceeded once in a thousand years, the regulation effect of fruit trees on sediment production exceeded that of slope vegetation. Litter has always been dominant in reducing erosion and sediment yield, and its sediment reduction rate is over 60%. (3) the synthetical effect of three regulating factors, benefits of water and sediment reduction exceed 80%. The erosion modulus of terraced orchards only 93.75 t/km² in case of in ten thousand years, which lower than the allowable soil erosion amount that the safety standard of terraced orchards with the increase of the production life of terraced orchards. This study can provide scientific and technological support for the safety production of millionsof terraced orchard terraces in the and gully region.

References:: [1] 高建恩.雨水利用技术研究进展与展望[C]//第四次全国雨水利用技术研究会暨学术年会专辑论文集.中国水利学会雨水利用专业委员会:《四川水利》编辑部,2004.
[2] 李慧娟,高建恩,张元星,等.延安极端降雨特性分析及对梯田侵蚀灾害影响[J].水土保持学报,2016,30(6):79-84.
[3] Zuazo V H D, Ruiz J A, Raya A M, et al. Impact of erosion in the taluses of subtropical orchard terraces[J]. Agriculture, Ecosystems & Environment, 2005,107(2):199-210.
[4] 焦菊英,王万中,李靖.黄土丘陵区不同降雨条件下水平梯田的减水减沙效益分析[J].水土保持学报,1999,5(3):59-63.
[5] 刘斌涛,宋春风,史展,等.西南土石山区水平梯田的水土保持措施因子[J].中国水土保持,2015(4):36-39.
[6] 严登峰.果园不同水土保持措施控制氮磷流失效果的研究[D].福州:福建农林大学,2007.
[7] Sang-Arun J, Mihara M, Horaguchi Y, et al. Soil erosion and participatory remediation strategy for bench terraces in northern Thailand[J]. Catena, 2006,65(3):258-264.
[8] 郝连安,高建恩,张元星,等.基于土壤水分动态的梯田苹果园水窖配置[J].中国水土保持科学,2012,10(3):57-63.
[9] 贾立志,高建恩,张元星,等.黄土丘陵沟壑区梯田暴雨侵蚀状况及规律分析[J].水土保持研究,2014,21(4):7-11.
[10] 白先发,高建恩,贾立志,等.极端暴雨条件下黄土区典型梯田防蚀效果研究[J].水土保持研究,2015,22(3):10-15.
[11] 刘士余.红壤坡地果园水土保持效应的对比研究[J].水土保持通报,2006,26(4):7-10,78.
[12] 李晶晶,邹超煜,白岗栓.聚丙烯酰胺对坡地苹果园水土流失和土壤养分流失的影响[J].应用生态学报,2016,27(9):2991-2999.
[13] 温永福,高鹏,穆兴民,等.野外模拟降雨条件下径流小区产流产沙试验研究[J].水土保持研究,2018,25(1):23-29.
[14] 高建恩,吴普特,牛文全,等.黄土高原小流域水力侵蚀模拟试验设计与验证[J].农业工程学报,2005(10):41-45.
[15] 唐克丽,周佩华.黄土高原土壤侵蚀研究若干问题的讨论[J].中国科学院西北水土保持研究所集刊,1988(1):1-4.
[16] 宋丹丹.林冠对降雨截留作用的研究[D].山东泰安:山东农业大学,2015.
[17] 王红.水土保持典型措施对地下水补给生态基流的影响研究[D].北京:中国科学院研究生院(教育部水土保持与生态环境研究中心),2014.
[18] Zhou Z C, Shangguan Z P. Effects of ryegrasses on soil runoff and sediment control[J]. Original Research Article Pedosphere, 2008,18(1):131-136.
[19] 朱高立,王雪琪,李发志,等.秸秆覆盖对崩积体坡面产流产沙影响的模拟试验[J].土壤,2017,49(3):601-607.
[20] 周秋文,李璇,郭兴房.喀斯特地区枯落物层对地表径流和土壤侵蚀的影响研究[J].水文,2018,38(4):19-24.

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