Application method for constructing plant hedge to intercept phosphorus pollution of farmland runoff under sloping field condition, and plant hedge system thereof

Abstract

The invention discloses an application method for constructing a plant hedge to intercept phosphorus pollution of farmland runoff under a sloping field condition, and a plant hedge system thereof. Theapplication method is characterized in that a plurality of rows of plant hedges are planted on the sloping field in a cross slope planting mode to intercept and remove phosphorus element in the farmland runoff, wherein the removal rate of the phosphorus element is 27-63.5%. The plant hedge system is constructed on the sloping field and comprises the plurality of rows of plant hedges planted on the sloping field in the cross slope planting mode, and the plant hedge system is used for intercepting and removing the phosphorus element in farmland runoff, and can control the removal rate of the phosphorus element to be 27-63.5%. Substances such as nitrogen and phosphorus in the farmland runoff can be intercepted to a certain extent, the runoff production time of the slope surface is obviouslyprolonged, and the solute dissolution and exchange time is sufficient, so the quantity of the substances such as nitrogen and phosphorus flowing to a ditch is remarkably reduced, and the effective utilization rate of the substances is increased.

Description

technical field [0001] The invention belongs to the field of agricultural pollution control, and relates to an application method and a hedgerow system for constructing hedgerows to intercept phosphorus pollution from farmland runoff under slope conditions. Background technique [0002] At present, a large number of pesticides and chemical fertilizers are put into production and use to improve the quality and yield of crops, resulting in serious agricultural non-point source pollution. Agricultural non-point source pollution is recognized as the primary factor causing the deterioration of water environment, so it is extremely important to explore effective measures to prevent and control agricultural non-point source pollution. [0003] As a powerful soil and water conservation measure, hedgerows have been widely valued by many researchers and used in practice. Although the research and application of hedgerow technology at home and abroad have achieved certain results, fro...

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Problems solved by technology

Although the research and application of hedgerow technology at home and abroad have achieved certain results, from the use of hedgerow technology to the present, most of the research has been on the role of hedgerows in water and soil conservation in hills, and in the control of agricultural non-point source pollution. There are relatively few, and most of the planting methods are to study the economic benefits of different types of hedgerows and planting hedgerows on different slopes, but few people study the effect of hedgerows on farmland runoff control

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