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.
2
该墓地的发掘,为研究郑州地区两汉时期社会经济、丧葬习俗等提供了新的实物资料。
The excavation of the cemetery provided some new materials for studying on the social economy, funeral customs of Han dynasty in Zhengzhou.
Through analyzing the bearing mechanism and the data of cast? in? place pile with branches and plates, the bearing capacity of single piles is further studied by using different estimated methods.