土壤机械组成分析就是指土壤粒径分析，即测定组成土壤的不同直径颗粒的含量。
The analysis of soil mechanical component is to analyze soil grain diameter. That is to say, it is to measure the content which composed the different diameter particle.
碳水化合物是土壤有机质的重要组成成分，其含量和特性对土壤性质有很大的影响。
Soil carbohydrates constitute a significant part of the soil organic matter and the quality and quantity of carbohydrates in soils can influence the quality of soil.
城市土壤是城市生态系统的重要组成成分。
应用推荐