Smallholder system innovation in integrated watershed management: strategies of water for food and environment security in drought prone tropical and subtropical agro-ecosystems, Tanzania and South Africa

UNESCO-IHE; International Water Management Institute (IWMI) 2004. Smallholder system innovation in integrated watershed management: strategies of water for food and environment security in drought prone tropical and subtropical agro-ecosystems, Tanzania and South Africa. Progress report No.2, 1 January - 31 December 2004: Main report. 46p.