| 土壤风蚀采沙器的结构设计与性能试验研究 |
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| 引用本文： | 臧英,高焕文.土壤风蚀采沙器的结构设计与性能试验研究[J].农业工程学报,2006,22(3):46-50. |
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| 作者姓名： | 臧英 高焕文 |
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| 作者单位： | 1. 华南农业大学工程学院,广州,510642
2. 中国农业大学工学院,北京,100083 |
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| 摘 要： | 土壤风蚀是全球性土地退化的主要原因之一，也是世界上许多国家和地区的主要环境问题之一。为了准确认识和掌握风沙运动规律，有效指导防止风蚀措施的选择，该文研制了适用于野外采集风蚀土壤颗粒的采沙器，并在风洞内对其等动力性、高效率性及选择性进行了验证试验。试验结果表明：所研制的采沙器满足等动力特性要求；采集率为85.6％，可作为输沙量统一修订系数；采沙器更适用于采集以跃移形式运动的土壤颗粒。
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| 关 键 词： | 土壤风蚀 采沙器 结构 性能 风洞 |
| 文章编号： | 1002-6819(2006)03-0046-05 |
| 收稿时间： | 2005-03-10 |
| 修稿时间： | 2005-10-30 |
Structural design and performance test of dust sampler for wind erosion measurements |
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| Zang Ying and Gao Huanwen.Structural design and performance test of dust sampler for wind erosion measurements[J].Transactions of the Chinese Society of Agricultural Engineering,2006,22(3):46-50. |
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| Authors: | Zang Ying and Gao Huanwen |
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| Institution: | 1. College of Engineering, South China Agricultural University, Guangzhou 510642, China; 2. College of Engineering, China Agricultural University, Beijing 100083, China |
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| Abstract: | Wind erosion is one of the primary reasons leading to land degration and causing environmental problems in the world. In order to exactly understand the movement rule of windblown particles and to direct measurement selection of preventing wind erosion, a dust sampler was developed to trap windblown particles for a wind erosion field study. The isokinetic, high efficiency and selection of dust sampler was tested in the wind tunnel experiment. The results indicate that the dust sampler shows better satisfication for isokinetic. The sampler collection efficiency is about 85.6%, which can be used as a correction factor of sediment transportation. The sampler is suited to trap the soil particles moved in saltation. |
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| Keywords: | wind erosion dust sampler structure performance wind tunnel |
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