Effect of Balanced Fertilization on Potato Growth in Semi-arid Area of Gansu Province;

Models of rainwater harvesting system and their benefit evaluation in semi-arid areas;

Countermeasures and consideration for forestry development in arid and semi-arid areas;

A Study on Demacation Indexes between Subhumid and Semiarid Sectors in China;

According to the geographical conditions and water resources availability of semiarid hilly area,the water and soil resources were cascade-developed and utilized in high efficiency in the area through using water-saving techniques such as low pressure pipeline irrigation technique,sprinkling irrigation technique with secondary pressurization,and agricultural water saving strategies and management.

The background of west vulnerable ecosystem research item is presented,and the construction and demonstration of ecological agriculture in semiarid degradation mountainous areas were studied and practiced combined with the many years achievements of research team.

Characteristics of urban pollution under arid and semi-arid condition on the Loess Plateau in northwestern China:examples form a city in northwestern China;

Study of the Ecology Water Demand of Vegetation Restore in the Arid and Semi-arid Prairie Area;

The arid and semi-arid areas in the west part of China comprise about 37.

Effects of degraded sandy grassland afforestation on soil quality in semi-arid area of Northern China;

Research on regular of wind erosion on road slope under different protection in semi-arid area of Northwest China;

Effect of long-term irrigation and fertilization on nitrogen,phosphorous,and potassium pools of cinnamon soil in semi-arid area Ⅱ.Effect on potassium pool of cinnamon soil farmland;

The benefit and prospect for reuse of plastic film mulching and no-tillage technique in the semiarid region of Gansu Province;

Study on change of relative humidity in semiarid region under global climate change

In order to take advantage of the water resource in semiarid region of west Liaoning,the field experiment of limited supplementary irrigation scheduling was conducted during 2006～2007.