Water and soil conservation effect for different types of terraces on redsoil slope land;

Characteristic is and evolution of soil nitrogen in dam land and terrace in Loess Hilly Region;

Effect of returning hill terraced fields for farming to forestry andgrass in Huangyuan County;

Analysis of the landscape pattern and aesthetic characteristics of the Hani terraced fields;

The effect of auxiliary irrigation on yield of maize in terraced field;

We take the sector of Helong,Jinghe River,northern Luohe River and the Weihe drainage area as an example,and analyze the effect of preventing and controlling of soil erosion by afforestation,planting of grass,the terraced field and dam of silt.

Plastic film covering is the key measure for high yield of corn in terraced land in north Shaanxi;

In ad- dition,terraced land is more resistant to soil erosion during intense storm and sediment from terraced land is lower than that from slope land.

The area of terraced land is made up of 91.

With Hani terrace fields in the Quanfuzhang basins,Ailao Mountain in Yuanyang County as research area,this paper used the QuickBird Images as the input data for obtaining vector map of the distribution of terrace field plots.

The application of "terrace controlling gully" technique in erosion gully harnessing;