cultivated horizon中文什么意思

耕作层

• cultivated:    adj. 1.在耕种[栽培]中的。 ...
• horizon:    n. 1.地平；地平线；地平圈。 2 ...
• a horizon:    a层,淋浴层; 表土层; 层位; 腐 ...

例句与用法

1. There was obvious dependence relationship between corn yields with changing of depth of cultivated horizon and available water content , corn yields of the corn belt phaeozem changed regularly
   相关分析表明， “平面型”界面土壤玉米产量与各养分含量间无明显相关关系，只有当速效磷、钾含量在五级以下时，产量才受到明显影响。
2. Analysis showed that corn yields of the corn belt phaeozem positively related to depth of cultivated horizon and content of available water , respectively , which their correlation coefficient was 0 . 788 and 0 . 813 . at the same time , each of organic carbon , cation exchange capacity and available n was significant positively related to com yields
   而“波浪型”界面玉米产量与有机质、阳离子交换量、速效氮呈明显相关关系。玉米产量随有机质的增加而呈线性增加，玉米产量与阳离子交换量的相关关系可定量的描述为二项式的形式，相关显著。