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Simulation experiment of roots system effects on soil mechanical pressure
Author(s): Song Ziying, Wang Fei, Hu Lin, Mu Xingmin, Kang Shaozhong
Pages: 101-
106
Year: 2011
Issue:
11
Journal: Transactions of the Chinese Society of Agricultural Engineering
Abstract: 为了研究根系对土壤机械压力的大小、分布和影响因素以及各个因素与其相互关系,该研究采用自制的压力测量装置,测定并分析了不同模拟根系对不同体积质量土壤产生的机械压力及其影响因素.试验结果表明:模拟根系对土壤机械压力与根系直径呈极显著(p<0.01)幂函数关系,随着直径增加,根系对土壤的机械压力增加;随着土壤体积质量增加和土层深度增加,根系对土壤机械压力增加;当植株受到风力作用时,随着风力变大,根系对土...
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