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首页> 外文期刊>International Soil and Water Conservation Research >The effects of biological soil conservation practices and community perception toward these practices in the Lemo District of Southern Ethiopia
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The effects of biological soil conservation practices and community perception toward these practices in the Lemo District of Southern Ethiopia

机译：埃塞俄比亚南部莱莫区生物土壤保护措施和社区对这些措施的认识

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Land degradation is the critical ecological and agricultural challenges in Ethiopia. To combat this, the government and local farmers’ have undertaken soil and water conservation measures (physical, biological and integrated) across the country since 1970's. This study investigate effect of elephant grass ( P. purpureum ) and sesbania sesban ( S. sesban ) used as biological land rehabilitation practices on soil properties and farmers’ perception on the practices. Composite soil samples (0–30?cm) were randomly collected from lands treated with sesbania, elephant grass, and adjacent degraded grazing land, and a structured questionnaire was used to assess farmers’ perceptions. Statistical results showed that elephant grass and sesbania were significantly (P .05) improves degraded land soil bulk density, pH, CEC, OC, TN, Av.P, K, Na, Ca, Mg and clay characteristics. Moreover, there was a significant (P .05) difference between farmers’ perception of the effectiveness of physical, biological and integration of the two practices to control soil erosion. 48% of the farmers perceived that using both biological methods and the integration of biological with physical structures was more successful for controlling erosion and improving soil fertility. Logistic regression analysis revealed strong association (R2 = 0.84) between farmers’ perception on elephant grass and sesbanias' roles in soil conservation and groups of explanatory variables. Among the variables age, education and extension service significantly (P .05) influenced farmers’ perception on the practices. Generally, elephant grass and sesbania are effective biological practices for rehabilitating lands and improving soil properties through minimizing erosion.
机译：土地退化是埃塞俄比亚的关键生态和农业挑战。为了解决这个问题，自1970年代以来，政府和当地农民在全国范围内采取了水土保持措施（物理，生物和综合措施）。这项研究调查了用作生物土地修复措施的象草（P. purpureum）和sesbania sesban（S. sesban）对土壤特性的影响以及农民对这些行为的看法。从经过芝麻，大象草和邻近退化的放牧地处理过的土地上随机收集复合土壤样品（0–30？cm），并使用结构化问卷调查评估农民的看法。统计结果表明，象草和芝麻能显着（P <.05）改善退化土地的土壤容重，pH，CEC，OC，TN，Av.P，K，Na，Ca，Mg和黏土特性。此外，农民对物理，生物和两种控制土壤侵蚀的方法的有效性的认识之间存在显着差异（P <.05）。 48％的农民认为同时使用生物方法和将生物与物理结构相结合在控制侵蚀和改善土壤肥力方面更为成功。 Logistic回归分析显示，农民对象草的看法与芝麻树在土壤保护中的作用和解释变量组之间有很强的相关性（R 2 = 0.84）。在年龄变量中，教育和推广服务（P <.05）显着影响了农民对实践的看法。通常，象草和芝麻是通过最小化侵蚀来修复土地和改善土壤性质的有效生物措施。

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