计量经济分析 = Econometric analysis

60 years of ITC: The International Institute for Geo-Information Science and Earth Observation

The quality, quantity, and composition of food consumption are major determinants of the nutritional well-being of individuals, which has, in turn, important implications for individual and household-level health, productivity, and income. An analysis of food consumption patterns is essential to understanding and projecting domestic demand for agricultural products, as well as for the development of national policies to promote food security.

Patterns in foodgrain consumption and calorie intake

1 Department of Agricultural Resource Management, University of Embu, P.O. Box 6-60100, Embu, Kenya. 2 Department of Agricultural Resource Management, Kenyatta University, P.O. Box 43844-00100, Nairobi, Kenya. 3 Department of Environmental Sciences, Kenyatta University, P.O. Box 43844-00100, Nairobi, Kenya. 4 Department of Land and Water Management, University of Embu, P.O. Box 660100, Embu, Kenya.

Adoption of Soybean by Smallholder Farmers in the Central Highlands of Kenya

The high productivity together with hypoxic conditions in sediments enables wetlands to accumulate large amounts of soil organic carbon (SOC). However, natural tropical freshwater wetlands are increasingly being converted into other land uses, mainly rice cultivation. In this study, we investigated the impact of conversion of a natural tropical freshwater wetland into a rice paddy wetland on SOC, by determining SOC content, density and storage potential in the natural section (under different vegetation communities dominated by Cyperus papyrus [Papyrus], Typha latifolia [Typha] and Phragmites mauritianus [Phragmites]) and in the converted section (under rice cultivation). The SOC contents (g kg−1) and densities (kg m−2) of the 3 vegetation communities (Papyrus; 123.7 ± 2.6 [SE] and 7.22 ± 0.11, Typha; 85.3 ± 1.1 and 6.71 ± 0.12, and Phragmites; 78.2 ± 3.4 and 6.20 ± 0.06, respectively) of the natural section of the wetland were significantly higher (p < 0.05) than those (39.7 ± 0.7 and 3.90 ± 0.06, respectively) of the converted section. Similarly, for the entire sampled soil depth (0–50 cm), SOC storage potentials (Mg ha−1) of Papyrus (361.18 ± 5.53), Typha (335.31 ± 6.18) and Phragmites (310.17 ± 3.16) significantly exceeded (p < 0.05) that obtained in the converted section by nearly 46%, 42% and 38%, respectively. Soil physico-chemical characteristics: bulk density, salinity, pH and temperature, showed comparably significant correlations (p < 0.05) with SOC in both the natural and converted sections of the wetland. We strongly believe that exploration of alternative options for increasing rice production outside wetlands is paramount if natural tropical freshwater wetlands are to remain important ecosystems in climate change mitigation.

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A natural tropical freshwater wetland is a better climate change mitigation option through soil organic carbon storage compared to a rice paddy wetland

Rice cultivation is a new practice to Tselemti district of Tigray region, Ethiopia. Adoption of rice technologies is very slow in spite of its potential in the area. This research intended to identify factors affecting adoption of rice technologies. A multistage sampling technique was employed to select 150 sample households for this study. Descriptive statistics and inferential statistics were employed to see mean and percentage differences between adopter and non-adopter categories. Besides, binary logistic regression model was employed to identify the factors affecting adoption of rice technology. Result of the descriptive and inferential analysis showed that adopters had better farm size, livestock holding, farm income, labor availability, education level, perception on rice yield, access to credit service, contacts with extension agents, participation in off-farm activities, participation in training and field days as compared to non-adopters. Moreover, the binary logistic regression model result showed that the level of education, perception on rice yield, access to credit service, participation in off-farm activities, participation on field day and participation in training were found to positively and significantly influence the adoption decision of rice technology at 1%, 5% and 10% significant level. However, market distance influences rice technology adoption negatively and significantly at 10% significant level. The variables education, rice yield, access to credit, off-farm activities, market distance, participation on field day and training determine the farmers’ continued adoption decision behavior of rice technology. Therefore, the adoption of rice technology should be sustained by paying attention and moving along with those variables which influenced the adoption significantly.

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Factors affecting adoption of upland rice in Tselemti district, northern Ethiopia

Low dietary diversity in the rural household is a major problem in developing countries due to different factors. The aim of this study is to assess dietary diversity level and its associated factors among indigenous and nonindigenous households in Bambasi district, Western Ethiopia. A cross sectional data which covered a sample of 260 households collected using a semi structured interview schedule. A multi stage sampling procedure was used. A household dietary diversity score based on 12 food groups was created using seven days recalls. A descriptive statistics analysis was applied. An order logistic regression model was used to determine the factors that influence both indigenous and nonindigenous household dietary diversity. The result of the study revealed that indigenous household had better dietary diversity status than nonindigenous household heads. Age of the household heads, access to extension and access to nearest markets are the major determinants of rural households in the area. Despite of this, access to credit, farm income, farm size and dependency ratio are the major determinants for nonindigenous household heads whereas participation in small scale irrigation and education are major factors of dietary diversity of the indigenous household heads. Therefore, we recommended that food and nutrition interventions focusing on improving dietary diversity and quality should due attention to develop community specific interventions instead of generalized interventions. However, further investigation focused on seasonal dietary diversity and individual level dietary diversity of the study area

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Comparative analysis of indigenous and non-indigenous household dietary diversity status: the case of bambasi, benishangul gumuz regional state, western Ethiopia

http://www.journals.wsrpublishing.com/index.php/tjanrs/article/download/417/557

Eric Ndemo

Papers

Factors affecting adoption of upland rice in Tselemti district, northern Ethiopia

Comparative analysis of indigenous and non-indigenous household dietary diversity status: the case of bambasi, benishangul gumuz regional state, western Ethiopia

Food Insecurity and Coping Strategies Among Agro Pastoral Households: The Case of Lare Woreda, Nuer Zone, Gambella Regional State of Ethiopia