Threats, Use and Management Interventions for Restoration of Lake Chitu West Arsi, Ethiopia
Girum Faris,
Genene Tefera
Issue:
Volume 3, Issue 1, March 2017
Pages:
1-4
Received:
26 November 2016
Accepted:
6 December 2016
Published:
9 February 2017
Abstract: Lake Chitu is one of Ethiopian Flamingo Lakes known by single dominant blue green algal specie called Arthrospira fusiformis. A household questionnaire survey of respondents, key informants and focus group discussion were made in 2012 in Labu Subuqa kebele where lake Chitu is found to see major threats for general ecosystem disturbance, to see the use of the lake for the surrounding community and to identify major stakeholders for restoration and conservation of the lake in an integrated way. Results showed that deforestation of the catchment area is the main threat for the total degradation of the lake. Soil erosion occurred due to intensive loss of vegetation that increased the amount of silt in the lake. Deposition of animal debris and detergents are added to the lake because of human and cattle direct contact. The timely decrease in the size might be due to siltation. The community is using the lake only for washing clothes because of its alkalinity and soap nature. They also take bath on the hot spring that immediately comes from the edge of the lake that would eventually contaminate and change the nature of the lake. This study revealed that the community is not using the lake water only for the purpose of sanitation. Several stakeholders have been identified, consulted and participated on restoration of the lake biodiversity.
Abstract: Lake Chitu is one of Ethiopian Flamingo Lakes known by single dominant blue green algal specie called Arthrospira fusiformis. A household questionnaire survey of respondents, key informants and focus group discussion were made in 2012 in Labu Subuqa kebele where lake Chitu is found to see major threats for general ecosystem disturbance, to see the ...
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Variance Estimation Using Linear Combination of Tri-mean and Quartile Average
Showkat Maqbool,
Shakeel Javaid
Issue:
Volume 3, Issue 1, March 2017
Pages:
5-9
Received:
22 October 2016
Accepted:
12 January 2017
Published:
9 February 2017
Abstract: In this paper, we have proposed a class of modified ratio type variance estimator for estimation of population variance of the study variable, when Tri Mean and Quartile average of the auxiliary variable are known. The bias and mean square error (MSE) of the proposed estimator are obtained. From the numerical study it is observed that the proposed estimator performs better than the existing estimators in the literature.
Abstract: In this paper, we have proposed a class of modified ratio type variance estimator for estimation of population variance of the study variable, when Tri Mean and Quartile average of the auxiliary variable are known. The bias and mean square error (MSE) of the proposed estimator are obtained. From the numerical study it is observed that the proposed ...
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Role of Agricultural Mechanization Technologies in Transforming Agriculture: The Case of Wheat Row Planter in Ethiopia
Tamrat Gebiso,
Ayalew Bekele,
Ephrem Boka
Issue:
Volume 3, Issue 1, March 2017
Pages:
10-19
Received:
2 December 2016
Accepted:
27 December 2016
Published:
16 February 2017
Abstract: Wheat is one of the major staple food crops in many parts of Ethiopia covering about 11% of total land cultivated and production share of 17% of total cereals. However, land productivity is found to be among the lowest in the country from the world which is about 2.01tons/ha. To increase this lowest productivity, among all others, good agronomic practices is the most important and to facilitate this practice row planting was the one major action to be taken by farmers. But even though farmers were convinced to practice row planting, absence of appropriate technology was the most bottlenecks for development. To overcome the problem considerable researchers and individuals were engaged to development and adaptation of wheat row planters. However, before the embark of mass production and wider dissemination of the technologies, technical viability and socioeconomic feasibility of the technologies and selection of the best out of the options was found to be crucial activity. Therefore, this research activity was initiated to verify available prototypes for wheat row planting and recommend suitable ones for further demonstration and scaling up. Accordingly, seven row planters were collected from different sources in the country and on field evaluation were conducted in Tiyo district, Arsi zone with the presence of FRG during the major activities like planting, cultivation/weeding and harvesting and threshing. All necessary data from planting to harvest was collected. In addition to these different field days were organized to incorporate farmers’ and experts’ comments to strengthen the field data. Farmers’ preferences, technical viability and economic data analysis using partial budgeting technique and Gross Social Return were assessed and OARI-AAMRC type wheat row planter was ranked superior to others in all aspects.
Abstract: Wheat is one of the major staple food crops in many parts of Ethiopia covering about 11% of total land cultivated and production share of 17% of total cereals. However, land productivity is found to be among the lowest in the country from the world which is about 2.01tons/ha. To increase this lowest productivity, among all others, good agronomic pr...
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