| Testing and research on space distribution rule of drifting sand flux on farmland with conservative tillage |
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| DOI：10.7606/j.issn.1000-7601.2009.04.35 |
| Key Words: conservative tillage wind erosion sand-driving wind testing and study |
| Author Name | Affiliation | | SUN Yuechao | College of Mechanical and Electrical Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China
Vocational and Technical College，Inner Mongolia Agricultural University, Baotou, Inner Mongolia 014109, China | | MA Shuoshi | College of Mechanical and Electrical Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China | | CHEN Zhi | College of Mechanical and Electrical Engineering, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China | | ZHAO Yonglai | Vocational and Technical College，Inner Mongolia Agricultural University, Baotou, Inner Mongolia 014109, China |
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| Abstract: |
| The original position of field wind tunnel was tested in order to make clear the space distribution rule of drifting sand flux on farmland with conservative tillage. The result showed that horizontal distribution in all heights of
drifting sand flux on farmland with conservative tillage followed cubic polynomial rule in different wind speed, and drifting sand flux in each height basically reached the balancing and stable state when passed through 27 rows stubble and 5.5 m horizontal distances; drifting sand flux distribution curve in the vertical direction followed higher polynomial rule，and there was “trunk” domino affect alike the vertical distribution of the ground surface sediment runoff in gravel Gobi. The result also showed that drifting sand flux on farmland with conservative tillage mainly moved bellow 40cm height of the ground surface, about 90% of all wind erosions. |
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