Effect Test of Drought-resistant Rocketry Artificial Precipitation Enhancement Operation;

Comprehensive evaluation on ability of coping with agriculture drought in China;

Applying the theory and method of grey system,the index system on ability of coping with agriculture drought in Hunan is established.

Dryland agriculture plays an important role in developing Shanxi local economy.

Seeking to develop the relatively abundant land resource in the region of dryland agriculture becomes the important method to satisfy the increasing demand.

Current situation and counter-measures of the development of dryland farming in China;

And the status and role of dryland farming in water saving agriculture was defined,and the relationship between dryland farming and water saving irrigation,was revealed.

Based on the investigation and analysis of dryland farming in west America, this paper gives an introduction of planting systems and farming techniques in this area, snch as land leveling, automatic sprinkling irrigation, soil conservation, dryland machinery and livestock raising, which may be used as a refrence for similar areas.

Zoning study for the frangibility of agricultural drought in Hu nan Province;

Overview of meteorological and agricultural drought indices;

The studies on precipitation and agricultural drought in Siping City;