| 运用风蚀仪进行风力侵蚀特征研究的实践 |
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| 引用本文： | 刘敏,周波,何有华,张晓虹,柴亚凡,侯超.运用风蚀仪进行风力侵蚀特征研究的实践[J].中国水土保持,2012(9):55-56. |
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| 作者姓名： | 刘敏 周波 何有华 张晓虹 柴亚凡 侯超 |
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| 作者单位： | 甘肃省水土保持科学研究所,甘肃兰州,730020 |
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| 基金项目： | 水利部“948”项目（201036） |
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| 摘 要： | 在10 m/s试验风速下,运用风蚀仪、降尘缸等风蚀测量仪器,对裸露、10%砾石覆盖、20%砾石覆盖3种地表状态的风力侵蚀进行了人工模拟试验,对比分析水土保持措施防风蚀的效果。结果表明:无论是累积输沙量、输沙率还是沉积量,3种地表状态均为裸露地表>10%砾石覆盖>20%砾石覆盖,尤其是20%砾石覆盖状态下远远小于裸地。因此,砾石覆盖对防止风力侵蚀的效果是明显的,并且覆盖度越大,防风蚀效果越显著。
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| 关 键 词： | 风力侵蚀 风蚀仪 输沙量 输沙率 沉积量 兰州市 |
Study on Characteristics of Wind Erosion by Using Wind Erosion Instrument |
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| Institution: | LIU Min,ZHOU Bo,HE You-hua,et al.(Gansu Institute of Soil and Water Conservation,Lanzhou,Gansu 730020,China) |
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| Abstract: | It conducted artificial simulation tests of wind erosion in three surface conditions of uncovered surface,10% gravel coverage and20% gravel coverage by using wind erosion instruments and dust vats under the conditions of 10 m/s testing wind speed and analyzed the effect of anti-wind erosion of soil and water conservation measures.The outcomes show that sediment discharge,sediment delivery ratio and deposit amount of the three surface conditions is uncovered surface﹥10% gravel coverage﹥20% gravel coverage and especially that of 20% gravel covered is far less than uncovered surface.Thus,the effect of anti-wind erosion by using gravel coverage is remarkable and the greater degree of coverage,the more remarkable of anti-wind erosion will be. |
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| Keywords: | wind erosion wind erosion instrument sediment discharge sediment delivery ratio deposit amount Lanzhou City |
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