65mg/kg in top soils,which is located in a coastal area of East Hebei Province,was investigated by Institution of Geological Survey of Hebei Province.

Type and Geological Character of Gold Deposits in Eastern Hebei Province;

Study on Microelement Content in Forage Grass in Eastern Hebei Province;

The area of Eastern Hebei Province was the important part of Circum-Bohai economic circle, and it located at the scope of 3 hours to reach Beijing-Tianjin, which the region has excellent conditions.

Adaptability of Waxy Corn Varieties in the East Hebei Province;

Two strains of spring-sown maize and five strains of summer-sown maize (4 strains of hybrid, 3 strains of purities) were selected for determining suitable sowing time of adding-generation propagation maize in sunlight greenhouse in East Hebei Province.

Jidong region is one of the important concentrating area of gold deposits in ourcountry.

In order to determine the drought resistance of maize in coastal areas of east Hebei,the yields and resistant indexes of twelve maize varieties were studied under the circumstance of drought stress and non-drought stress in coastal areas of east Hebei.

The harmful effects of corrosion and the protection of ar-tillery equipment in the southeast coastal area were studied through analysis of climatic and geographical characteristic.

The southeast coastal area of China has played a more and more importa nt role in promoting China s economy and increasing its international competitiv eness since the reforming and opening up.

Because of upper reaches of saltwater worsening water quality, neglecting water quality protection during water resources utilization and wasting water resources, an embarrassing situation that a lot of water can not be used is caused rescently in the economy developmented area of our country—southeast coastal area.