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首页> 外文期刊>Aspects of Applied Biology >The effects of organic farming on the soil physical environment.
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The effects of organic farming on the soil physical environment.

机译：有机耕作对土壤物理环境的影响。

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The aim of this research, conducted in North Yorkshire, UK, was to determine the effects of organic farming practices on the development of soil (silt clay loam) physical properties, and in particular, soil structure in comparison with conventional agricultural management. The soil structure of organically- and conventionally-managed soils at one site was compared in a quantitative manner at different scales of observations using image analysis. Key soil physical and chemical properties were measured as well as the pore fractal geometry to characterize pore roughness. Organically-managed soils had higher organic matter content and provided a more stable soil structure than conventionally-managed soils. The higher porosity (%) at the macroscale in soil under conventional management was due to fewer larger pores while meso- and microscale porosity was found to be greater under organic management. Organically-managed soils typically provided spatially well distributed pores of all sizes and of greater roughness compared to those under conventional management. These variations in the soil physical environment are likely to impact significantly on the performance of these soils for a number of key processes such as crop establishment and water availability..
机译：在英国北约克郡进行的这项研究的目的是确定与常规农业管理相比，有机耕作方式对土壤（粉质壤土）物理特性（尤其是土壤结构）发展的影响。使用图像分析，以定量的方式在一个观测地点对有机和常规管理土壤的土壤结构进行了定量比较。测量了关键土壤的理化性质以及孔隙的分形几何形状，以表征孔隙的粗糙度。有机管理的土壤比常规管理的土壤具有更高的有机质含量，并提供了更稳定的土壤结构。在常规管理下，土壤宏观尺度上较高的孔隙率（％）是由于较小的孔隙减少，而在有机管理下，中尺度和微观孔隙率较高。与常规管理的土壤相比，有机管理的土壤通常会提供各种尺寸且粗糙度更大的空间分布良好的孔隙。土壤物理环境的这些变化可能会在许多关键过程（例如农作物的建立和水的可利用性）上严重影响这些土壤的性能。

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