科研与推广是黄土高原世行项目实施的重要技术支撑和保证孙太　（黄委会绥德水土保持科学试验站，陕西绥德县７１８０００）一、项目区科学研究的重要性与可行性在长期的工作实践中，随着水土保持科学试验研究领域的不断拓宽，内涵与外延的日趋扩展和逐渐协调、完善，人们... Scientific Research and Extension are Important Technical Supports and Guarantees for Implementation of the World Bank Project on the Loess Plateau Sun Tai (Suizhong Soil and Water Conservation Science Experimental Station of the Yellow River Reservation Committee, Suide County, Shaanxi Province 718000) I. Importance and Feasibility of Scientific Research in the Project Area In the long term Work practice, with the continuous widening of the field of soil and water conservation scientific experiments, the connotation and extension of the growing expansion and gradually coordinated and perfect, people ...