flood-control irrigation
101Arable land — In geography, arable land (from Latin arare , to plough) is an agricultural term, meaning land that can be used for growing crops. Of the earth s 148,940,000 km² (57.5 million square miles) of land, approximately 19,824,000 km² (7.65 million… …
102Qin (state) — For the dynasty founded by the state after unification, see Qin Dynasty. State of Qin 秦 Kingdom …
103Washington — /wosh ing teuhn, waw shing /, n. 1. Booker T(aliaferro) /book euhr tol euh veuhr/, 1856 1915, U.S. reformer, educator, author, and lecturer. 2. George, 1732 99, U.S. general and political leader: 1st president of the U.S. 1789 97. 3. Martha… …
104Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
105environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
106Aliso Creek (Orange County) — Not to be confused with Aliso Creek (Los Angeles County). Coordinates: 33°30′38″N 117°45′9″W / 33.51056°N 117.7525°W / 33.51056; …
107Missouri River — Coordinates: 38°48′49″N 90°07′11″W / 38.81361°N 90.11972°W / 38.81361; 90.11972 …
108Mekong River Commission — The Mekong River Commission (MRC) is an intergovernment body charged “to promote and co ordinate sustainable management and development of water and related resources for the countries’ mutual benefit and the people’s well being by implementing… …
109Columbia River Treaty — The Duncan Dam was required under the Treaty, and was completed in 1967. It has no powerhouse and remains purely a storage project …
110Colorado River Storage Project — Glen Canyon Dam and Lake Powell near Page, Arizona. The dam and lake are major components in the Colorado River Storage Project s attempt to regulate the flow of the Colorado River. The Colorado River Storage Project is a United States Bureau of… …
