| 陕北坡地产流产沙特性及径流模拟 |
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| 引用本文： | 王娟,史文娟,王全九,白鹏,宋孝玉.陕北坡地产流产沙特性及径流模拟[J].水土保持学报,2011,25(1):16-19. |
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| 作者姓名： | 王娟 史文娟 王全九 白鹏 宋孝玉 |
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| 作者单位： | 1. 西安理工大学,西北水资源与环境生态教育部重点实验室,西安,710048
2. 西安理工大学,西北水资源与环境生态教育部重点实验室,西安,710048;黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西,杨凌,712100 |
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| 基金项目： | 国家科技支撑计划项目(2007BAD88B05); 陕西省教育厅基金(08JK397); 校创新基金项目(106-210708) |
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| 摘 要： | 利用野外模拟降雨试验,研究了陕北坡地产流产沙的特性,结果表明:在相同雨强下,裸地径流总量是草地的1.15倍,是PAM地的1.46倍,是秸秆覆盖的2.64倍。裸地产沙总量是草地的1.3倍,是PAM地的1.5倍,是秸秆覆盖的44.4倍,秸秆覆盖的蓄水保沙效果最为显著;同一下垫面的累积产沙量与累积径流量呈显著的线性关系,相关系数0.95以上;根据短历时Philip公式建立的修正降雨产流模型,利用该模型对其径流进行了模拟。结果显示:修正的Philip模型可反映裸地、草地、PAM地的降雨产流特征,计算值与实测值误差在10%以内,满足精度要求,但对于秸秆覆盖地其适用性不强,有待于进一步研究。将土壤吸湿率S参数推求方法推广应用于草地以及PAM地,得到的土壤有效传导度与饱和导水率之间的关系为:草地K=0.90 KS,PAM地K=0.98 KS。该研究成果对于拟定不同黄土坡地的保水保肥措施具有重要参考意义。
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| 关 键 词： | 产流 产沙 Philip入渗公式 下垫面 |
Characteristic of Runoff-Sediment Yield and Runoff Simulation on Hillslope in Northern Shaanxi |
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| WANG Juan,SHI Wen-juan,WANG Quan-jiu,BAI Peng,SONG Xiao-yu.Characteristic of Runoff-Sediment Yield and Runoff Simulation on Hillslope in Northern Shaanxi[J].Journal of Soil and Water Conservation,2011,25(1):16-19. |
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| Authors: | WANG Juan SHI Wen-juan WANG Quan-jiu BAI Peng SONG Xiao-yu |
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| Institution: | WANG Juan1,SHI Wen-juan1,WANG Quan-jiu1,2,BAI Peng1,SONG Xiao-yu1(1.Northwest Key Lab.of Water Resource and Environment Ecology,Ministry of Education,Xi'an University of Technology,Xi'an 710048,2.State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau,Yangling,Shaanxi 712100) |
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| Abstract: | The rules of sediment and runoff using field simulated rainfall trails.The results show that: the runoff on barren land were 1.15,1.46 and 2.64 times greater than that on grass land and PAM land and straw mulch land,the sediment production on barren land were 1.3,1.5 and 44.4 times greater than that on grass land and PAM land and straw mulch land in the same rainfall intensity,and straw mulch was better than the others on the effect of soil and water conservation;cumulative sediment linearity increase with ... |
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| Keywords: | runoff sediment Philip infiltration equation underlying conditions |
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