Identification, Characterization and Mapping of Potential Irrigable Areas in Ziway Micro Watershed
Zelalem Shelemew,
Dulo Hussen,
Anbese Ambomsa,
Ayub Jelde
Issue:
Volume 7, Issue 3, June 2022
Pages:
62-66
Received:
21 April 2022
Accepted:
30 May 2022
Published:
9 June 2022
Abstract: Irrigation land suitability assessment and mapping for irrigation purpose is important to utilize the land resources efficiently. This study was initiated to assess, evaluate and develop map of the land resources which is potentially suitable for surface irrigation in ziway micro watershed by using Geographic Information System (GIS). The evaluation of land in terms of the suitability classes was based FAO guideline for land evaluation. Multi-criteria decision evaluation method and suitability factors were used such as, soil data, slope, land use/cover for evaluate the physical land characteristics of the study area of surface irrigation and suitability map was developed. After evaluating the physical land capability for surface irrigation, irrigation suitability map was developed. The weighted overlay analysis gave 70.1 and 13.3% of the study area is lies in the range of very high suitable to marginally suitable for irrigation. Thus, the overall suitability shows that potentially irrigable land suitable for surface irrigation is about 83.4% of the area. Therefore, based on results, farmers, decision makers, investors, planners and policymakers at the local, regional and national levels and the government should invest in those suitable areas for irrigation.
Abstract: Irrigation land suitability assessment and mapping for irrigation purpose is important to utilize the land resources efficiently. This study was initiated to assess, evaluate and develop map of the land resources which is potentially suitable for surface irrigation in ziway micro watershed by using Geographic Information System (GIS). The evaluatio...
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Interaction Between Spatial and Temporal Instabilities of Rainfall on Milk Production in the Brazilian Semi-arid Region
José de Jesus Sousa Lemos,
Elizama Cavalcante de Paiva,
João da Costa Filho,
Fabricio José Costa de Holanda
Issue:
Volume 7, Issue 3, June 2022
Pages:
67-74
Received:
11 May 2022
Accepted:
26 May 2022
Published:
27 June 2022
Abstract: The overall objective of the research was to evaluate the synergy between annual rainfall and the defining variables of milk production in the twenty largest producing municipalities in Ceará between the years 1973 and 20209. The research used annual rainfall data taken from the Ceara Meteorology and Water Resources Foundation (FUNCEME) as well as from the IBGE's Municipal Livestock Surveys (PPM) during the investigated period. The rainfall of the municipalities was organized into drought, normal and rainy periods, observing statistical criteria: average and standard deviation. It was used the coefficient of variation (CV) to measure the instabilities of the variables. It was created the instability index (INST) to capture the synergy between the annual precipitation of the municipalities with the number of lactating cows, the daily productivity of milk per cow and the average price of milk received by producers, in each municipality. To construct the INST, it was used the Factor Analysis, with the technique of decomposition in principal components. The results confirmed the high temporal instabilities of rainfall in the municipalities that were also observed in the defining variables of milk production in the studied municipalities. It can also be inferred from the results that, in all municipalities, the estimated INST for the rainy periods were always higher than those observed in the other periods (drought and normal), which confirms the great importance of rainfall for gauge good economic results in milk production in Ceara. The estimated INST confirmed the assumptions that guided the conduct of this research, that there is significant synergy between rainfall, the number of lactating cows, daily productivity and the price of milk received by farmers, in the largest milk producing municipalities in Ceara between the years 1973 and 2020.
Abstract: The overall objective of the research was to evaluate the synergy between annual rainfall and the defining variables of milk production in the twenty largest producing municipalities in Ceará between the years 1973 and 20209. The research used annual rainfall data taken from the Ceara Meteorology and Water Resources Foundation (FUNCEME) as well as ...
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