Richard, W. H. Shrub-Stappe balance and change in a semi-arid terrestrial ecosystem - Amsterdamr : Elsevier, 1988 - 272 p. : ilus - Development in agricultura and managed forest ecology ; 20 . - Development in agricultura and managed forest ecology ; 20 . D46-218 LCCN: 2677 Subjects--Topical Terms: Balance hídrico.Ecosistema.Flora desértica--E.U.A.Regiones áridas.Suelos--Carbón en.Suelos--Elementos minerales. Dewey Class. No.: 551.5943 / R5