土壤组成 meaning in English
soil composition
soil constitution
Examples
- The major causes for dyke breaches are the strong permeability of soil at the dyke breaches , resulting in infiltration or piping firstly , and nonuniform settlement on water side and land side of the dyke due to a long - term soakage of the dyke , further leading to cracking and erosion , and finally breaching of the dyke
溃口发生的主要原因是溃口处土壤组成透水性强,先发生散浸或管涌等险情,加上浸沧时间长,迎水面和背水面堤身沉陷不均匀,导致裂缝出现和冲刷的加剧也都促成溃口发生。 - But in contrast of the research of chemical weathering of other rocks , such as granites and basalts , the research of chemical weathering of black shales both in width and depth still remains much to advance . after reading and investigating widely , we selected lower - cambrian black shales and their weathering profiles in hunan province as research objects of our work at first . then , based on field investigation of weathering status of lower - cambrian black shales and it ' s relationship with soil composition and human activities in hunan , we studied changes of chemical composition such as major and trace elements before and after weathering of black shales by comparison
根据文献阅读和野外调查，本文选择了湖南安化、桃江、望城等地下寒武统黑色页岩及有关风化剖面作为研究对象，并在查明湖南下寒武统黑色页岩的风化现状及其与土壤组成、人类活动的关系的基础上，对比研究了黑色页岩风化前后主量和微量元素等化学组成的变化，探讨了元素的富集和迁移转化机制以及黑色页岩风化与区域环境质量的关系，得出了如下几点主要成果和认识： ( 1 ) ti是黑色页岩风化过程中的“不活动”元素，可作为参照元素，对其它元素的活动性进行质量平衡计算。 - The results are as follows : trace elements such as cd , sb , zn and u can change residual soil composition deeply , elements such as ree , y , cr and cu can change water bodies and their sediments composition deeply , while elements such as v , ni , mo and tl can change residual soil , water bodies and their sediments composition deeply during black shales weathering
结果表明：在黑色页岩风化过程中， cd 、 sb 、 zn 、 u等元素对残积土壤组成影响较大， ree 、 y 、 cr 、 cu等元素对周围水体及沉积物组成影响较大，而v 、 ni 、 mo 、 t1等元素对残积土壤和周围水体及沉积物组成影响都较大。