EFFECT OF LAND USE CHANGES AND SOIL DEPTH ON SOIL ORGANIC MATTER , TOTAL NITROGEN AND AVAILABLE PHOSPHORUS CONTENTS OF SOILS IN SENBAT WATERSHED , WESTERN ETHIOPIA
EFFECT OF LAND USE CHANGES AND SOIL DEPTH ON SOIL ORGANIC MATTER , TOTAL NITROGEN AND AVAILABLE PHOSPHORUS CONTENTS OF SOILS IN SENBAT WATERSHED , WESTERN ETHIOPIA
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埃塞俄比亚西部森巴特流域土地利用变化和土壤深度对土壤有机质、全氮和速效磷含量的影响
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
H. Gebrekidan
中科院分区：
文献类型：
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作者：
N. Emiru;H. Gebrekidan
土地利用的变化，主要是从自然生态系统转变为管理的农业生态系统，以及随后土壤资源质量的恶化，已成为埃塞俄比亚西部的普遍现象。土壤反应（pH值），有机质，全氮和有效磷含量是一些重要的土壤性质受到这种变化。因此，本研究的目的是评估这些重要的土壤化学性质的变化所产生的不同的土地利用（森林，灌木，草地和耕地）和土壤深度（0-20和20-40厘米）的管理措施的反应。结果表明，这4种重要土壤性质对土地利用变化的响应均达到极显著水平（P ≤ 0.01）。
Land use changes, mainly shift from natural ecosystems into managed agro ecosystems, and subsequent deterioration in quality of soil resources have become common phenomena in western Ethiopia. Soil reaction (pH), organic matter, total N and available P contents are some of the vital soil properties affected by such changes. This study was therefore conducted with the objective to assess the response of these vital soil chemical properties to changes in management practices arising from varying land uses (forest, shrub, grass and cultivated) and soil depth (0-20 and 20-40 cm). Results revealed that these four vital soil properties significantly (P ≤ 0.01) responded to changes in land use.