Effects of hillside slopes on plant community succession of re-natural farmland in the Loess Plateau;

The paper has summarized twom ain types of ego development modes of the peasant households who gave up farming and planted grasses or trees,and hasa nalyzed advantages and existences of the problems of these modes by investigating these typical regions of the engineering.

Influence and its benefits evaluation of removal lands from cultivation to afforestation and grassland in slope farmland on soil erosion in hilly region of purple soil;