Effects of El Nio,La Nina and solar activities on the outbreaks of the summer locust in Hebei Province;

Analysis of La Nina Effect on Local Climate;

Relation between Solar Eclipses and El Nino and La Nina Events;

Two times solar eclipse in low latitude or once in equator forms the LaNina Using this and the material of solar eclipso and draught and Waterlogging, the relation of the great draught and Waterlogging in the receut 500 years in our country with the the solar eclipse is finded.

From July 28, 1998 to August 25, 1998, operation of Binzhou railway was interrupted twice by the flood; according to the natural law, the phenomena of Einino and Lanina will occur every 2～7 years.

Taking Shaanxi province as an example, analysis is made on the relation of changes of precipitation and air temperature, El-nino, La-nina and sunspot with crop diseases and insect pests.

The changing tendency of temperature and precipitation is analyzed as well as relationship of El-nino and La-nina and drought since 1950s,the results indicate that there is positive correlate between climatic warm and drought,El-nino and La-nina are closely related with the occurrence or prevalence of drought disease.

Using Satellite Altimetry Technique for Monitoring El Nio and La Nia Phenomenon;

The Causes for El Nio and La Nia Events and Their Prediction;

According to the relationship analysis between tropical cyclones landing in China and El Nino years and La Nina years, some results are obtained as follows: (1) There are less frequen.

Relation with Sunshine Duration in Yanji and El Nino/La Nina;