Huaihe drainage basin which is a base to pr duce grains, coal and electric power in China is located between Yellow River and Ysngze River and has frequent flood and waterlogging, drought.
The climates of China and India are under the strong influence of Monsoon, though the geo-graphical circumstance and natural environment differs from each other.
The differences of the major ion chemistry of the rivers, and the physical and chemical de-nudation rates (PDR and CDR, respectively) of the river drainage areas between the Hainan Is-land and Taiwan Island were studied.
Keshan disease is an endemic cardiomyopathy. A great progress has been made in .the study of relationship between its pathogenesis and selenium. It has been identified both in the external and internal environments that Se deficiency in eco-environment is a principal factor for the oc-curence of the disease.
By using empirical orthogonal function (EOF), the correlation between summer precipitation in the western part of our country and easonal Sea Surface Temperature (SST) was analyzed.
Mt Yulongxue (5596 meters a.b.l.) and Mt. Cangshan (4122 meters a.b.l.) which are located in the southeast of Tibet Plateau and the central part of the Hengduan Mountain System are major peaks in the northwest part of Yunnan province.
Defining the urbanization as the process of labour force transferring from traditional industry to modern industry as well as moving from rural area to urban area, the author sug-gested that urbanization could be realized through three channels.
In consideration of the characteristics of Mei-Yu circulation and the orographic feature in Hubei province, a one-level mesoscale model developed by Mass and D.P. Dempsey was impro-ved.
