IMHE researchers invented a new technique of Cutting Slope Length & Down-slope Tillage on sloping terraced field, and the patent of this invention has been issued in China.

The invention discloses the structure and a construction method of Cutting Slope Length & Down-slope Tillage on sloping terraced field. The structure is as follows: the upper border and the lower border of a sloping surface plot are provided with plant protective ridge terraces, the upper side and the lower side of each terrace are respectively provided with a side ditch and a back ditch, and other periphery of the sloping surface plot is provided with drainage ditches connecting with the upper border terrace back ditches and the lower border terrace side ditches along the slope surface to form a drainage network drain. The sloping surface plot in the drainage network drain is divided into several downward slope ridging zones by cross slop damming ditches. With a plurality of small ridging downward slopes are evenly distributed in the downward slope ridging zones. And a ditch is arranged between adjacent small downward slopes. All the ditches in the downward slope ridging zones are communicated with the damming ditches and side ditches of the cross slope.

The invention has the characteristics of conserving water, reducing erosion, saving labor force and being convenient for farmers practice. And has been used successfully in Zhongxian County, Chongqing City. This invention is suitable for the project of terraced field construction from sloping land in the Three Gorges Reservoir area.

 Patent Number：ZL 201010283404.8 

Applicant：Institute of Mountain Hazards and Environment (IMHE), CAS

Inventors：Yan Dongchun, Long Yi, Zhou Ping