The Diospyros used as fruit tree was discussed in aspect of economic value,the origins, history of culture, cultivar resources, cultivar development,traits heredity,and cultivar breeding.

According to the dissipative structure theory,the dissipative structure of fiver system was described in this paper and a fiver water quality evolution model was developed based on the theory of information entropy and fuzzy theory,which advances the the.

Based on the monitoring data of groundwater quality in Dezhou City,the paper discusses water quality characteristic and analyzes the water quality evolution of deep groundwater.

Geomorphological features, crustal composition and geological evolution of the Tianshan Mountains;

The Pre-Devonian tectonic framework in the northernmargin of Qaidam basin and geological evolutionof Olongbuluck palaeo-block;

Study of the geophysical fields and the geological evolution shows that the Minjiang fault is a long-lived fault.

The monthly and yearly evolution of water quality were studied by means of PCA, and its response to environment acidification is analyzed by means of correlation.