artificial drainage
1.Article 3 The term “water resources” as referred herein shall mean utilization of artificial means or control of surface or ground waters for the purposes of flood control, tide water defense, irrigation, drainage, leaching of injurious salt, soil conservation, water reservation, silt dredge, water supply, pier construction, navigation, and water power development.
2.This paper expounded the consideration on researching and developing the new technical model in hilly drainage area during the process of agro-industrial structure adjustment, its characters of energy and material recycles, with the emphasis on introducting the efficiency of three renovation techniques in hilly area of northern Fuzhou, i. e. construction of artificial grassland and feeding goats in rotation, qualified forage for pisciculture use, and ecosystimatical resilience of hilly orchard and improvement of its productivity.

