The main Sylvicultural tree species in Sandong were selected for the researches on water consumption.
以山东省常见的主要造林绿化树种为研究对象，进行林木耗水性研究。
2
Proposing and using the concept of precursor field stability, the precursory observational data before moderate earthquakes on the boundaries of Henan, Sandong and Hebei are analyzed.