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| dc.contributor.author | Awoke Abebaw | |
| dc.date.accessioned | 2021-07-23T06:55:12Z | |
| dc.date.available | 2021-07-23T06:55:12Z | |
| dc.date.issued | 2021-07-23 | |
| dc.identifier.uri | http://ir.bdu.edu.et/handle/123456789/12243 | |
| dc.description.abstract | The problem of natural phenomena and interference of human activities were aggravating soil fertility degradation (erosion and overgrazing). The objective of the study was to investigate effects of land use types and land management practices on selected soil physicochemical properties along slope gradient. Treatments were arranged in a factorial randomized complete block design (RCBD) with three factors (three land use type (GL, CL, FL) two slope gradient (25% and 5-10%) and two land management practices with (area closure and soil bund) or not. A total of 36 disturbed and un disturbed soil samples were collected from 0-20 cm depth within three land use types, two slope gradient and two land management practices. Composite soil samples were analyzed for particle size distribution, pH, soil organic matter (SOM), total nitrogen (TN), available P (Av. P), cation exchange capacity (CEC) and exchangeable cations (Ca 2+, Mg 2+, K + and Na + ) using standard procedures while undisturbed soil samples were analyzed for bulk density (BD). The statistical differences in soil properties among land use types, slope gradient and land management practice were tested using a two way ANOVA following the General Linear Model (GLM). The results indicated that, land use types, slope classes and land management practices significantly (P<0.01) influenced most soil physicochemical properties. General, comparisons between the crops land that have been cultivated forever on the one hand and the forest and grazing lands on the other revealed highly significant difference on major soil physico-chemical properties. The highest mean CEC (31.6 cmol (+) kg -1 ), TN (0.16%), and SOM (5.03%) were observed under the forest land as compared with other land use types. Considering the land management practices the higher mean values of TN (0.15%), CEC (29.25 cmol (+) kg ) SOM (4.35%) were recorded in the managed area than in the unmanaged one. Considering the slope gradient the higher mean SOM (4.12%), TN (0.15%), CEC (28.46 cmol (+) kg ) were recorded under the lower slope than the upper slope. Generally, land use type, land management practices and slope gradient cause variation of soil physico-chemical properties. Therefore, we recommended that appropriate and integrated land management options for different land use types and slope gradient to improve physico-chemical properties of soil in the study area. -1 -1 | en_US |
| dc.language.iso | en | en_US |
| dc.subject | Soil Science | en_US |
| dc.title | EFFECT OF LAND USE TYPES, SLOPE GRADIENT AND LAND MANAGEMENT PRACTICES ON SELECTED SOIL PHYSICO-CHEMICAL PROPERTIES IN BURAT WATERSHED, NORTH WESTERN ETHIOPIA | en_US |
| dc.type | Thesis | en_US |
