根据中美农业协定1981年计划安排,水利部派我们四人赴美考察小流域治理,从6月13日至7月12日,历时一个月.我们先后考察了弗吉尼亚、田纳西、密西西比、衣阿华、内布拉斯加等5个州的9个水土保持大区、14个水土保持小区,6个有关的科研单位、16条不同治理目的和治理措施的小流域、12个农牧场的水保措施,还参观了陆军工程兵团和田纳西流域管理局的6个水利工程, According to the 1981 plan of the Sino-U.S. Agricultural Agreement, the Ministry of Water Resources sent four of us to the United States to study small watershed governance, which lasted one month from June 13 to July 12. We inspected Virginia, Tennessee, Mississippi, China, Nebraska and other five states of 9 soil and water conservation area, 14 soil and water conservation area, 6 related scientific research units, 16 different management purposes and governance of the small watershed, 12 farms Soil and water conservation measures, but also visited the Army Corps of Engineers and the Tennessee Basin Authority six water conservancy projects,