The equation among Lou soil and Heilu soil urease activity and time and their buffering values is quadratic linear regression equation.
2
黑垆土是我国西北黄土侵蚀地区主要的地带性土类,也是一种古老的耕种土壤。
The dark loessial soil (Heilutu) is not only a main zonal soil group in the loess plateau of northwestern China, but an ancient cultivated soil.
3
结果表明三号坑兵马俑样品与秦始皇陵附近的垆土关系密切,与黄土关系稍远。
The results show that the raw material of terracotta warriors and horses in pit No. 3 are closed to loam soil layer nearby Qin Shihuang's Mausoleum, but little far from loess layers.