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常家沟水土保持试验站在1956年建站,隶属于河北省水利厅领导,为省级水土保持科学研究单位。该站从1957年开始进行水土流失试验研究,共有洪沟与常家沟两个试验场地。洪沟试验场属黄土丘陵强烈侵蚀区;常家沟试验场属低覆被土石山地中度侵蚀区,在永定河流域上游水土流失区中有一定的代表性。根据1957～1967年间部分试验研
Changjiagou soil and water conservation pilot station built in 1956, under the leadership of the Hebei Provincial Department of Water Resources, as the provincial water and soil conservation scientific research units. The station from 1957 began soil and water loss pilot study, a total of flood ditch and Changjiagou two test sites. The flood ditch test site is a strongly eroded area of loess hilly. The test site of Changjiagou is a medium-eroded area covered by low-earth-rocky mountainous areas, and has certain representativeness in the upper reaches of the soil and water loss area in the Yongding River basin. According to 1957 ~ 1967 part of the pilot study