NIU Yaobin,WU Xu,GAO Zhaoliang,et al.Spatial Variation of Rill Erosion Morphology on the Slope of Engineering Accumulation[J].Research of Soil and Water Conservation,2021,28(06):32-38.
工程堆积体坡面细沟侵蚀形态空间变化
- Title:
- Spatial Variation of Rill Erosion Morphology on the Slope of Engineering Accumulation
- 文章编号:
- 1005-3409(2021)06-0032-07
- 分类号:
- S157.1
- 文献标志码:
- A
- 摘要:
- 为揭示工程堆积体坡面细沟形态空间变化规律以及细沟形态参数与坡度和流量之间的关系，选取5，9，13，17 L/min放水流量，对24°，28°和32°堆积体进行放水冲刷试验，运用沟长、沟宽、沟深等指标描述细沟发育过程。结果表明:在24°和32°堆积体坡面，放水流量最大时，沟长发育最快; 在相同放水流量条件下，随着坡度增大沟长发育越变缓。在24°堆积体坡面，沟宽在所有放水流量条件下呈现差异化发育，剧烈发育集中在1～6 m，相对平稳发育在6～9 m; 在28°和32°堆积体坡面，放水流量为5，9，13 L/min时，沟宽在3～9 m发育相对平稳。在试验条件下，坡面沟深发育整体呈现减小趋势，波动变化集中在1～5 m; 在同一坡度条件下，平均沟宽和沟深均随放水流量增大而增大，而在同一流量条件下，除放水流量为5 L/min时，平均沟宽和沟深随坡度无显著差异，表明流量对细沟形态指标影响大于坡度。沟宽在坡面不同位置发育基本一致，沟深由坡上到坡下却逐渐变小，坡面细沟侵蚀形态可概化为“楔形”。研究结果对于生产建设项目工程堆积体坡面防护措施的合理配置具有重要意义。
- Abstract:
- In order to explore the spatial variation of rill morphology on slope of engineering accumulation，the relationships between rill morphology parameters and slope gradients and flow discharge were analyzed. In this study，scouring-erosion experiments were conducted on steep slopes of engineering accumulation under different slope gradients(24°，28° and 32°)with different flow discharges(5，9，13 and 17 L/min). The indicators such as rill length，rill wide and rill depth were used to describe the rill development process. The results indicate that the rill length develops fastest when flow discharge is 17 L/min under the slope gradients of 24° and 28°，while the development of rill length becomes slower with the increase of slope gradients under the same flow discharge; the rill width presents a differentiated development on the slope of 24° under all flow discharges，which can be divided into two stages: a rapid development stage in 1～6 m and a subsequent slow development stage in 6～9 m，while the slow development in 3～9 m of rill width on the slope gradients of 24° and 28° is observed under discharges of 5，9 and 13 L/min; under the experiment conditions，the development of rill depth on the slope shows a decreasing trend，and the fluctuation is concentrated in 1～5 m; the averages of rill width and depth both increase with increase of flow discharge under the same slope condition; in contrast，except for 5 L/min，there are no significant differences in average of rill width and depth between slope gradients under the same flow condition，indicating that the effect of flow discharge on rill morphology parameters is greater than that of slope gradient; the rill width develops basically consistent in different positions of the slope，while the rill depth presents a decreasing trend from the upslope to downslope; the rill erosion morphology on the slope of engineering accumulation can be classified as ‘wedge-shape'. These results have important implication for the reasonable allocation of protective measures on slope of engineering accumulation in production and construction projects.
参考文献/References:
[1] 张乐涛，高照良，田红卫.工程堆积体陡坡坡面径流水动力学特性[J].水土保持学报，2013，27(4):34-38.[2] Peng X D，Shi D M，Guo H Z，et al. Effect of urbanisation on the water retention function in the Three Gorges Reservoir Area，China [J]. Catena，2015，133:241-249.[3] Niu Y B，Gao Z L，Li Y H，et al. Effect of rock fragment content on erosion processes of disturbed soil accumulation under field scouring conditions [J]. Journal of Soils and Sediments，2019，19(4):1708-1723.[4] 牛耀彬，吴旭，高照良，等.降雨和上方来水条件下工程堆积体坡面土壤侵蚀特征[J].农业工程学报，2020，36(8):69-77.[5] 齐星圆，高照良，张翔，等.黄土堆积体变坡长坡面细沟动态发育过程[J].水土保持研究，2019，26(3):42-48.[6] 鲁克新，李占斌，张霞，等.室内模拟降雨条件下径流侵蚀产沙试验研究[J].水土保持学报，2011，25(2):6-9.[7] Wang Z，Yang X，Liu J，et al. Sediment transport capacity and its response to hydraulic parameters in experimental rill flow on steep slope[J]. Journal of Soil and Water Conservation，2015，70(1):36-44.[8] 张攀，唐洪武，姚文艺，等.细沟形态演变对坡面水沙过程的影响[J].水科学进展，2016，27(4):535-541.[9] 和继军，宫辉力，李小娟，等.细沟形成对坡面产流产沙过程的影响[J].水科学进展，2014，25(1):90-97.[10] 张宽地，王光谦，吕宏兴，等.模拟降雨条件下坡面流水动力学特性研究[J].水科学进展，2013，23(2):229-235.[11] 李永红，牛耀彬，王正中，等.工程堆积体坡面径流水动力学参数及其相互关系[J].农业工程学报，2015，31(22):83-88.[12] 和继军，吕烨，宫辉力，等.细沟侵蚀特征及其产流产沙过程试验研究[J].水利学报，2013，44(4):398-405.[13] 张攀，姚文艺，唐洪武，等.模拟降雨条件下坡面细沟形态演变与量化方法[J].水科学进展，2015，26(1):51-58.[14] 刘希林，张大林.基于三维激光扫描的崩岗侵蚀的时空分析[J].农业工程学报，2015，31(4):204-211.[15] 张利超，杨伟，李朝霞，等.激光微地貌扫描仪测定侵蚀过程中地表糙度[J].农业工程学报，2014，30(22):155-162.[16] 李俊利，李斌兵，柳方明，等.利用照片重建技术生成坡面侵蚀沟三维模型[J].农业工程学报，2015，31(1):125-132.[17] 李霞，金鑫，谢斯琴，等.间歇降雨对红壤坡面土壤侵蚀特征的影响[J].水土保持学报，2021，35(1):96-102.[18] 王志强，杨萌，张岩，等.暴雨条件下黄土高原长陡坡耕地细沟侵蚀特征[J].农业工程学报，2020，36(12):129-135.[19] Ou X J，Hu Y X，Li X W，et al. Advancements and challenges in rill formation，morphology，measurement and modeling[J]. Catena，2021，196:104932.[20] 沈海鸥，郑粉莉，温磊磊，等.黄土坡面细沟侵蚀形态试验[J].生态学报，2014，34(19):5514-5521.[21] 王龙生，蔡强国，蔡崇法，等.黄土坡面细沟形态变化及其与流速之间的关系[J].农业工程学报，2014，30(11):110-117.[22] 牛耀彬，高照良，李永红，等.工程堆积体坡面细沟形态发育及其与产流产沙量的关系[J].农业工程学报，2016，32(19):154-161.[23] Niu Y B，Gao Z L，Li Y H，et al. Characteristics of rill erosion in spoil heaps under simulated inflow:a field runoff plots experiment [J]. Soil and Tillage Research，2020，202:104655.
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备注/Memo
收稿日期:2021-01-16 修回日期:2021-02-06资助项目:国家自然科学基金(41671283); 山西省高等学校科技创新项目(2020L0141，2020L0146); 山西农业大学科技创新基金(博士科研启动)项目(2020BQ38，2020BQ44); 山西省优秀博士来晋工作奖励(SXYBKY2019029)第一作者:牛耀彬(1990—)，男，甘肃天水人，讲师，博士，研究方向为工矿区人为侵蚀过程和土地整治。E-mail:15529021275@163.com通信作者:高照良(1969—)，男，河南灵宝人，研究员，博士，博士生导师，主要从事农业水土工程和荒漠化防治研究。E-mail:gzl@ms.iswc.ac.cn