For the implementation of a real-time detection and dynamical defense security system,this thesis focuses on the technique of intrusion detection and decision-making of defense.

Regulation and Countermeasure of Freezing Injury on Wheat in the Central and Southern Part of Hebei Province;

The paper describes the characters of geological disaster bodies in detail and brings forward protection countermeasure.

In this paper, analyzed the present status of environment pollution in Urumqi, concentrated upon atmospheric pollution, quality of water environment, contamination emission, noise surrounding and other, and came up with defensive countermeasure for pollution.

In this paper, the main meteorological calamity in Shandong Province is described and the corresponding countermeasures are put forward.

Based on the widely and systematically collected information on Fuqing s agriculture,meteorology,disasters,ecological environment,phenology,remote sensing facilities and socio-economy,a database on agrometeorological disasters and their prevention measures was established.