DEVELOPMENT OF ECO-AGRICULTURE IS A BASIC WAY TO RETURN THE FARMLAND TO FOREST AND GRASS IN GUIZHOU KARST MOUNTAIN (DESERTIFICTION) REGION

Guizhou is a typical mountain province with a wide distribution of karst landform and 927% of its total area belongs to mountainous and hilly regions. The area of sloping cultivated land accounts for 695% for the toale cultivated land, where soil errosion and rocky desertification are very serious. The province is a key region for our country to return land to forest. This paper analyzed the importance to carry out the strategy of ecoagriculture deveolpment for Guizhou karst region. It also stated the target and connotations of ecoagricultrue, and expounded the principles in the development of ecoagricultrure. Finally, the authors, according to the regional features of Guizhou karst mountain area, proposed the four models (such as selfsupport in grain, ecoeconomic type of forestry, beneficial type of livestock and valueadded type of agricultural products processing) of ecoagriculture development. Corresponding measures were put forward as follows: innovation of the investment mechanism for ecoagricultrue development, acceleration of urbanization in rural areas, strengthening research on key technology for ecoagriculture development, and supporting on key enterprises for ecoagriculture development.