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| 作物残茬覆盖对农田土壤风蚀的影响 | |
| 引用本文： | 赵永来,陈智,孙悦超,王荣莲.作物残茬覆盖对农田土壤风蚀的影响[J].干旱地区农业研究,2011,29(1):84-87. |
| 作者姓名： | 赵永来 陈智 孙悦超 王荣莲 |
| 作者单位： | 1. 内蒙古农业大学职业技术学院,内蒙古,包头,014109 2. 内蒙古农业大学机电工程学院,内蒙古,呼和浩特,010018 3. 内蒙古水利科学研究院,内蒙古,呼和浩特,010019 |
| 基金项目： | 国家自然科学基金项目(40861013) |
| 摘 要： | 为定量评价干旱半干旱地区农田土壤抗风蚀效果,采用移动式风洞及其配套测试系统对内蒙古武川县上秃亥乡农田地表进行了原位测试研究。结果表明,不同风速下土壤风蚀量随作物残茬盖度的增加呈指数规律减少;40%以上残茬盖度可明显提高土壤颗粒起动风速并减少风蚀量;当风速为14~18 m/s时,地表作物残茬盖度为60%~80%具有较好的抗风蚀效果。 |
| 关 键 词： | 残茬覆盖 风蚀 移动式风蚀风洞 |
Farmland wind erosion at different stubble coverage rates |
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| ZHAO Yonglai,CHEN Zhi,SUN Yuechao,WANG Ronglian.Farmland wind erosion at different stubble coverage rates[J].Agricultural Research in the Arid Areas,2011,29(1):84-87. | |
| Authors: | ZHAO Yonglai CHEN Zhi SUN Yuechao WANG Ronglian |
| Institution: | ZHAO Yong-lai1,CHEN Zhi2,SUN Yue-chao1,WANG Rong-lian1(1.Vocational and Technical College,Inner Mongolia Agricultural University,Baotou,Inner Mongolia 014109,China,2.College of Mechanical and Electrical Engineering,Hohhot,Inner Mongolia 010018,3.Inner Mongolia Institute of Water Resources Research,Inner Mongolia 010019,China) |
| Abstract: | In order to evaluate the farmland's resistance effects to wind erosion quantitatively in the arid and semiarid regions,field experiments were carried out by employing the movable wind erosion tunnel and its support equipment in Wuchuan county,Inner Mongolia Autonomous Region.The results show that the amount of soil wind erosion decreases exponentially with stubble coverage rate increasing at different wind velocities,the starting velocities of the soil particles can be increased obviously and the amount of ... |
| Keywords: | stubble coverage wind erosion movable wind erosion tunnel |
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