An improved wide furrow micro-catchment for large-scale implementation of water-harvesting systems in arid areas |
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| Institution: | 1. Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan;2. Department of Urban Planning and Disaster Management, Ming-Chuan University, Taoyuan, Taiwan;1. Laboratoire des Sciences du Climat et de l’Environnement (LSCE), Unité Mixte de Recherche 8212 (CEA-CNRS-UVSQ/IPSL), Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France;2. IPGP, 1 rue Jussieu, 75238 Paris Cedex 05, France;3. CEA/DSM/IRAMIS/NIMBE, Saclay, 91191 Gif-sur-Yvette, France;4. Center for Research in Isotopes and Environmental Dynamics (CRIED), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan;1. Laboratory of Renewable Energies and Dynamics of Systems, Hassan II University, Faculty of Science Aîn Chock, El-Jadida road Km9 – BP 5366 Maarif Casablanca, Morocco;2. Department of Oceanography, National Institute for Fisheries Research, 2, BD Sidi Abderrahmane, Aîn Diab Casablanca, Morocco;1. Institute for Medical Research and Occupational Health, Ksaverska c. 2, PO Box 291, 10001 Zagreb, Croatia;2. Institute of Oceanography and Fisheries, PO Box 500, 21000 Split, Croatia;1. Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Via Valdisavoia 5, 95123, Catania, Italy;2. CNR-IVALSA − Consiglio Nazionale delle Ricerche, Istituto per la valorizzazione del legno e delle specie arboree (CNR-IVALSA), via Gaifami 18, 95126, Catania, Italy;1. CNR IRSA, viale F. De Blasio 5, Bari 70132, Italy;2. Dip. Scienze Agro-Ambienali e Territoriali, Università di Bari, Via Amendola,165/A - 70126 Bari, Italy |
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| Abstract: | A new water harvesting (WH) micro-catchment technique Wide Furrow with Back-placed transplanting area (WFB)], implemented using a specially developed inexpensive plow, was experimented and compared to a popular technique the Deep Furrow (DF)] under East Mediterranean arid environment. Both WH micro-catchments with 4, 8, and 12 m long runoff area were planted with 1, 2, and 6-month old Atriplex seedlings. A multi-criterion method for comparison was employed, where the following parameters were evaluated: Sedimentation thickness and infiltration rate inside the micro-catchments; stored water in the soil profile; seasonal WH efficiency; plant productivity over two years; and the ease of mechanizing the implementation system. The DF technique showed higher WH efficiency and greater soil water storage, however, the WFB technique showed thinner sedimentation, higher infiltration rates and comparable plant productivity. Both techniques increased the wetting period of the top soil layers significantly and provided the soil reservoir with available water for more than one season. Using WFB technique and employing 1–2-month old Atriplex transplants facilitate mechanized transplanting and/or seed drilling for mixed cropping as well as mechanized maintenance of the micro-catchments, which will presumably encourage large-scale implementation and improve the sustainability of the WH structures. |
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