RT Report T1 Survey methods: groundwater, recharge in arid and semi-arid regions A1 United Nations Environment Programme, A1 United Nations Educational, Scientific and Cultural Organization PB United Nations Environment Programme SN 92-807-2131-3 YR 2002 FD 2002 LK https://wedocs.unep.org/handle/20.500.11822/8135 UL https://wedocs.unep.org/handle/20.500.11822/8135 NO This report presents survey of methods for groundwater recharge in Arid and Semi-arid regions. DS UN Environment Document Repository RD Sep 21, 2026