"This paper describes and analyzes the effort to institute river basin management in the Tárcoles basin of Costa Rica. Located in west-central Costa Rica, the Tárcoles basin represents 4.2 percent of the nation's total land area, but is home to half the nation's population and the metropolitan...

"The authors describe and analyze the emergence of river basin management in the Warta River Basin of Poland. The Warta basin's 55,193 km2 cover approximately one-sixth of Poland, and the Warta is a principal tributary to the Oder. Water management issues include pollution of the Warta and its...

"The authors describe and analyze management in the Murray-Darling Basin of Australia, long regarded as a model for integrated river basin management. This interior basin of over 1 million km2 in semi-arid southeastern Australia is defined by the catchment areas of the Murray and Darling Rivers...

"The authors describe and analyze river basin management in the Guadalquivir River Basin in Spain. The Guadalquivir river flows westerly across southern Spain, with nearly all of its 57,017 km2 drainage area within the region of Andalusia. Water management issues in this semi-arid, heavily...