Considering the density baroclinic effect caused by the salty water invasion, the salinity field computation is added in the hydrodynamic model to make the vertical velocity distribution better representing the practical situation.
But as a result of the recent years people to the ground water resources characteristic understanding insufficiency, many people thought it is "inexhaustible", they blindly placed well, excessive mining, created the subsoil water level to continue to drop, the salty water invasion, the surface subsidence, geological disaster question and so on.
Based on the classical theories of water-oil displacement and particle migration, a set of equations, which describe mixing of ions, the invasion of mud particles, the migration of particles in formation, particle deposition on the surface of pore bodies and particle capture at pore throats, is derived.
Based on the analysis of the problems existed in the g roundwater mining and monitoring in Zhanjiang city, the rectified scheme is pres ented for the layout of the monitoring system of groundwater, which is extended to the whole area from the falling filler of the controlled area and takes the p revention of seawater invasion as a key point. The sufficient and scientific mon itoring basis is given for the sustained utilization and protection of the groun dwater in Zhanjiang city.
Based on the result and extensive risk communications, combined with the management experience of the Beijing Forest Protection Station, the authors proposed some effective control measures to prevent the invasion of the three pests into Beijing.
Impact of the invasion of pinewood nematode and the following different removal disturbance intensities on the plant diversity o
Alien plants, along with their ecological invasion and negative impacts on indigenous species diversity and ecosystems, are one of the major topics of current ecological research.
It is a cytosolic protein that protects cells from the adventitious invasion of pancreatic-type ribonuclease.
Successful immunotherapy of tumors requires understanding of the natural relationship between the immune system and tumor in the status of differentiation, invasion and maturation.