Based on the measured data from the winter wheat fields in Zhengzhou of Henan Province, the vertical distribution of root length density(RLD)and root mass density(RMD)were analyzed.
根据在郑州进行的冬小麦根系田间实测资料，研究了根长密度和根质量密度在砂壤土中的垂直分布。
Further analysis of the root distribution pattern and the vertical sediment yield allowed establishment of a quantitative relationship between root biomass and vertical sediment yield.
通过进一步分析植被根系分布特征和土壤垂直侵蚀产沙之间的联系，建立了草地植被根系生物量与土壤垂直侵蚀产沙特征之间的定量关系。
The stress distribution of the reserved root with different prosthodontic design after hemisection therapy under the vertical loading and obliquely loading was observed.
分别在垂直载荷和斜向载荷下观察下颌第一磨牙磨牙半切术后不同固定修复设计对牙周支持组织应力分布情况。
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