| 重盐碱地的改造及建植草坪的研究——以河西走廓中部重盐碱低洼地的草坪建植为例 |
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| 引用本文： | 刘金荣,谢晓蓉.重盐碱地的改造及建植草坪的研究——以河西走廓中部重盐碱低洼地的草坪建植为例[J].水土保持通报,2004,24(1):19-21. |
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| 作者姓名： | 刘金荣 谢晓蓉 |
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| 作者单位： | 1. 黄河水利委员会,黄河水利科学研究院,河南,郑州,450003;中国科学院水利部,水土保持研究所,陕西,杨凌,712100
2. 黄河水利委员会,黄河水利科学研究院,河南,郑州,450003 |
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| 基金项目： | 洛界高速公路边坡植物防护设计项目 |
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| 摘 要： | 通过6个不同坡度、土壤和植物措施配置的高速公路边坡模拟试验小区,探讨了暴雨和径流冲刷条件下模拟边坡的细沟形成机理及其侵蚀特征。结果表明,草地几乎郁闭的沙砾土坡面只在降雨末期产生少量细沟;而种植灌木的褐黄土和料礓石的坡面细沟发育明显、形态变化复杂,细沟最大宽度为18.4 cm,最大深度为16.5 cm。因此采取工程措施与生物措施二者相结合的办法,才能达到真正的边坡防护效果。
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| 关 键 词： | 边坡防护 高速公路 植物措施 细沟 |
| 文章编号： | 1000-288X(2004)01-0016-03 |
| 收稿时间： | 6/6/2003 12:00:00 AM |
| 修稿时间： | 2002年5月13日 |
Study on Improvement of Severe Saline-alkali Land and Turf Plant--A Case Study on Plant Turf in the Sever Saline-alkali Lowland in the Middle of Hexi Corridor |
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| LIU Jin-rong and XIE Xiao-rong.Study on Improvement of Severe Saline-alkali Land and Turf Plant--A Case Study on Plant Turf in the Sever Saline-alkali Lowland in the Middle of Hexi Corridor[J].Bulletin of Soil and Water Conservation,2004,24(1):19-21. |
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| Authors: | LIU Jin-rong and XIE Xiao-rong |
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| Institution: | Biology Department, Hexi University, Zhangye City 734000, Gansu Province, China;Biology Department, Hexi University, Zhangye City 734000, Gansu Province, China |
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| Abstract: | Six plots of simulated speedway slope with different gradients are studied. Soil and vegetation measures are made to study the mechanism and characteristics of rill development on simulated slopes under rainfall and flow scouring. The results show small rills develop on sandstone slopes planted with lawn of much cover during the final term of rainfall. However, rills develop obviously and with complex shape on loess and gravel slopes planted with shrubs. The maximum width and depth of rill is 18. 4 and 16. 5 cm respectively. The combination of engineering measures and vegetation measures is the best choice to protect speedway slopes. |
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| Keywords: | slope protection speedway vegetation measures rill |
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