Prof. Ning Duihu, President of WASWAC, and Prof. Seyed Hamidreza Sadeghi of Tarbiat Modares University, the deputy President of WASWAC, investigated the scientific research work on soil and water conservation at Jiucaigou and Xindiangou of Suide station, China. Prof. Liu Lifeng, director of the station, and Prof. Dang Weiqin made presentations and exchanged ideas. The team were interested in the theory and practice of dam system construction, integrated soil and water conservation management in small watersheds and the effect of erosion reduction.

Prof. Seyed Hamidreza Sadeghi made suggestions and recommendations on the details of the runoff observation plots and section construction, and discussed the scale conversion of field observation plots, which provides a reference method and path for future observation and research.