Natural Sciences

Since the beginning of summer this year, affected by hot weather and hot weather, parts of northern China have seen a rapid increa...

More than 55 million acres of grassland have been affected by the lack of effective precipitation in the region since the start of...

According to the ministry of civil affairs' website, the drought has affected 4.34 million people in 66 counties and districts i...

A fire whirl - also known as a fire devil, or as a fire tornado, is a whirlwind induced by a fire when the air temperature and he...

Derivative disasters are neither original nor secondary, but are caused by the transmission of disaster chains. After the occurre...

Natural disasters are a phenomenon existing in highly complex systems composed of natural systems and human social systems, in wh...

The provinces Sichuan, Shanxi, Heilongjiang, Liaoning and Guangxi had experienced flood in 1981 with affected 39.786 million hec...

A 7.3 magnitude earthquake occurred in Haicheng district, Liaoning Province in February 4, 1975, covering about 9000 square kilom...

The water system of the Songhua River basin was well developed and the tributaries were numerous. There were 68 rivers with a tota...

The picture shows the sight of white dragon river before the calamity. ...