The Zhanghe type culture before the period of Shang dynasty in the north part of Henan province is clear in feature and is similar to that in the south part of Henan province.

Xiaqiyuan culture of Zhanghe type was pre Shang culture of Shang tribe after the period of Shang Min.

In May,2003,Xinxiang Municipal Archaeology Team excavates Hougaozhuang site at Xinx- iang county,and discovers some relics of early Longshan and Pre-Shang cultures,in which,there are nine ash pits of early Longshan culture and one ash pits of Pre-Shang culture,some pottery pots are unearthed, which provide new materials for studying the ancient culture in the Central Plains.

But the Pre-Shang culture discovered in drainage area of Huiji river is the source of the Early-Shang culture, and its distribution range and locality accord with the records of the capital of Southern Bo established by king Tang.

The main source of the pre-Shang culture is Longshan culture of the middle Shanxi region.

Zhangzhou culture, one important part of Minnan culture that belongs to oceanic culture, has colorful cultural connotation and wide and profound influences up to now.

Numerical simulation of sediment-laden flow in Zhang River;

By the calculation of water yield,conflux,riverbank conflux,flood routing of reservoir in Zhang river valley,the paper sets up meteorology-hydrology forecast model of Zhang river valley.

Construction of Flood Prevention Contigent in the Area of Lower Reaches of the Zhang River;