Use of Multi-Method Approach for a Gravity Irrigation Network Diagnosis: Case of Karfiguela Paddy Field in Burkina Faso  

作　　者：Hillary Marie Michelle Compaore Élie Serge Gaë tan Sauret Ouindinboudé Jacques Kissou Mahougbé August Abdon Kinglo Pascal Bazongo Poulouma Louis Yameogo Mamadou Koita Idriss Serme Hillary Marie Michelle Compaore;Élie Serge Gaëtan Sauret;Ouindinboudé Jacques Kissou;Mahougbé August Abdon Kinglo;Pascal Bazongo;Poulouma Louis Yameogo;Mamadou Koita;Idriss Serme(Institut National de l’Environnement et de Recherches Agricoles (INERA-CNRST), Ouagadougou, Burkina Faso;Bureau d’Etudes en Geosciences et Georessources (BUGEGO), Bobo Dioulasso, Burkina Faso;Nazi Boni University, Bobo Dioulasso, Burkina Faso;Projet RESOB, Ouagadougou, Burkina Faso;Ecole Nationale Supérieure d’Ingénieurs de Fada N’Gourma, Université de Fada N’Gourma, Fada-Ngourma, Burkina Faso;Institut International de l’Eau et de l’Environnement (2iE), Ouagadougou, Burkina Faso)

机构地区：[1]Institut National de l’Environnement et de Recherches Agricoles (INERA-CNRST), Ouagadougou, Burkina Faso [2]Bureau d’Etudes en Geosciences et Georessources (BUGEGO), Bobo Dioulasso, Burkina Faso [3]Nazi Boni University, Bobo Dioulasso, Burkina Faso [4]Projet RESOB, Ouagadougou, Burkina Faso [5]Ecole Nationale Supérieure d’Ingénieurs de Fada N’Gourma, Université de Fada N’Gourma, Fada-Ngourma, Burkina Faso [6]Institut International de l’Eau et de l’Environnement (2iE), Ouagadougou, Burkina Faso

出　　处：《Agricultural Sciences》2022年第12期1396-1420,共25页农业科学（英文）

摘　　要：Burkina Faso is an agricultural and landlocked country whose agriculture is dependent on climatic hazards. Irrigated agriculture therefore appears as an alternative to secure, intensify and sustainably increase agricultural production. However, irrigation systems in Burkina Faso suffer from numerous technical, organizational, land and structural problems, which strongly undermine their performance. This is the case of the irrigated perimeter of Karfiguéla which since its development in 1977, has experienced insufficient water. This research has contributed to the reflection on the performance and operation of gravity irrigation networks on the irrigated perimeter in Burkina Faso and the contribution of satellite images in the mapping of irrigated perimeters. Then, an approach based on a mapping of hydraulic networks and on four main diagnostic methods were used: 1) mapping of hydraulic networks, 2) a detailed visual inspection of hydraulic infrastructure, 3) estimation of canals’ hydraulic efficiency, 4) surveys of the various actors involved in the management of the perimeter. These methods lead to the same results concerning the state of degradation and the functioning of irrigation networks in wet seasons. In terms of results, Karfiguéla perimeter has a net area of 360 ha and is supplied by a network made up of a supply canal, a primary canal, four (4) secondary canals, 37 tertiary ones, and quaternary ones for plots of water supply, all in ordinary concrete except the quaternary which are in rammed soil. The efficiency of the canals in the rainy season, greater than 100%, shows that the irrigation network during this period functions as a drainage network while the real drainage network is disorderly and non-functional. The damage to the irrigation network, siltation, grassing, erosion, overturning, large cracks and many others are all the more severe as we advance toward the Quaternary. The Strickler roughness coefficient values of the order of 68 for the feeder, 47 for the primary, between 32 and 52 forBurkina Faso is an agricultural and landlocked country whose agriculture is dependent on climatic hazards. Irrigated agriculture therefore appears as an alternative to secure, intensify and sustainably increase agricultural production. However, irrigation systems in Burkina Faso suffer from numerous technical, organizational, land and structural problems, which strongly undermine their performance. This is the case of the irrigated perimeter of Karfiguéla which since its development in 1977, has experienced insufficient water. This research has contributed to the reflection on the performance and operation of gravity irrigation networks on the irrigated perimeter in Burkina Faso and the contribution of satellite images in the mapping of irrigated perimeters. Then, an approach based on a mapping of hydraulic networks and on four main diagnostic methods were used: 1) mapping of hydraulic networks, 2) a detailed visual inspection of hydraulic infrastructure, 3) estimation of canals’ hydraulic efficiency, 4) surveys of the various actors involved in the management of the perimeter. These methods lead to the same results concerning the state of degradation and the functioning of irrigation networks in wet seasons. In terms of results, Karfiguéla perimeter has a net area of 360 ha and is supplied by a network made up of a supply canal, a primary canal, four (4) secondary canals, 37 tertiary ones, and quaternary ones for plots of water supply, all in ordinary concrete except the quaternary which are in rammed soil. The efficiency of the canals in the rainy season, greater than 100%, shows that the irrigation network during this period functions as a drainage network while the real drainage network is disorderly and non-functional. The damage to the irrigation network, siltation, grassing, erosion, overturning, large cracks and many others are all the more severe as we advance toward the Quaternary. The Strickler roughness coefficient values of the order of 68 for the feeder, 47 for the primary, between 32 and 52 for

关 键 词：Irrigated Perimeter Hydraulic Network Rice Cultivation Water Management Remote Sensing 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]