By using the temperature and precipitation data from 11 counties in Dezhou,the aridityies of climate from 1981 to 2005 are calculated and compared with those from 1951 to 1980.

Starting with the climatic conditions and farming system in China, seven types of grain storage areas are established through studying grain storage area according to accumulated temperature (≥10℃) aridity.

Agricultural climate division of Hebei Province based on potential evapotranspiration and surface aridity index

Results indicated that in China as a whole,the average temperature had significant warming trends,precipitation had slightly decreasing trend,and potential evapotranspiration and aridity index had significant decreasing trends.

Based on the analysis of nationwide climatic data in recent 40 years,the software Arcgis was adopted to map the variation of frost free period(FFP),aridity index(AI)and climatic zoning of Chinese viticulture.

After the 1990′s,dryness index increase especially in .

With the consideration of our climate characteristics and grapevine growth needs,and based on the comparison and analysis of several atmospheric moisture content indexes,the authors considered that the dryness index(DI=ET_C/P) in grapevine growth season(April 1-September 30) could be a proper atmospheric moisture content index for the climatic zoning of grapevine cultivation in China.

Effects of drying temperature on properties of chitosan/glutin composite films;

Effect of drying temperature on corn wet milling;

Effect of drying temperature on agglomeration and electrochemical cyclic voltammetry of nano-scale β -Ni(OH)_2;

A prediction model for dry strength of ceramic sanitaryware shaped by gelcasting based on improved BP artificial neural net was developed by using the Levenberg-Marquardt training algorithm.