Shallow pool-greenhouse system of raised field of costal saline soil area and application thereof

Abstract

The invention discloses a shallow pool-greenhouse system of a raised field of a costal saline soil area. The system comprises shallow pools, raised fields and a greenhouse system. The raised fields and the shallow pools are alternatively distributed; the raised fields are trapezoidal raised fields. A raised field drainage closed conduit is arranged in the bottom of each raised field, a water isolating layer is arranged in the middle of the raised field, and the greenhouse system is arranged on the shallow pools; the greenhouse system comprises a planting system, an energy system, a water treatment system and a regulating system; the energy system is connected to the water treatment system and the regulating system through a line, the water treatment system is connected to the planting system through a pipeline, and the regulating system is arranged in the planting system. The planting system performs vegetable and fruit planting and agricultural waste fermenting treatment, the energy system provides power to the planting system, the water treatment system and the regulating system, the water treatment system provides water for irrigation for the planting system, and the regulating system controls aeration and temperature increase for the planting system. The system disclosed by the invention has the characteristics of controlling salt of soil, performing agricultural irrigation by means of underground salty water, comprehensively utilizing agricultural wastes, combining vegetable and fruit planting and aquaculture and the like.

Description

technical field [0001] The invention relates to the technical field of agricultural planting and breeding. More specifically, it relates to a platform shallow pond-greenhouse system in coastal saline soil area and its application. Background technique [0002] Coastal saline soil in northern my country is mainly distributed in the Bohai Rim region, including the Yellow River Delta along the Laizhou Bay, the sedimentary plain along the Bohai Bay, and the alluvial plain in the lower reaches of the Liaohe River along the Liaodong Bay. Influenced by seawater, these areas have high groundwater levels and strong salinity, and the total salt content of the soil can reach 1%-3%. If no transformation is carried out, only some salt-tolerant plants can grow, such as reed and Suaeda salsa, etc. Utilized by agriculture or forestry. [0003] Building terraces is one of the main methods for improving saline soil in northern coastal areas. While excavating soil and building platforms, it ...

AI Technical Summary

Problems solved by technology

[0005] 1) The salt in the surface soil (0-40 cm) of terrace fields is transferring to the middle and lower layers of soil (40-100 cm), and the salt in the middle and lower layers of soil is discharged from the soil very slowly. The soil salt is discharged as soon as possible, and this part of the salt will still migrate to the surface soil through the capillary effect, so that the salt discharge effect of the surface soil will appear repeatedly, which will have a negative impact on the crops planted in the terrace. Therefore, it is necessary to solve the salt discharge of the middle and lower soil of the terrace technical problems;

[0006] 2) The construction of terraced fields requires a lot of human, financial and material investment. If cotton, corn, sorghum and other traditional crops with certain salt tolerance are planted on the terraced fields, due to their low economic benefits, the recovery period of the funds invested in the terraced fields will be shortened. Prolongation is not conducive to the popularization and promotion of this technology, so it is necessary to choose crop varieties with high economic benefits;

[0007] 3) Building greenhouses on terraced fields to grow vegetables, melons and fruits and other economic crops can obtain higher economic benefits, but conventional greenhouses do not have the function of salt drainage. To develop facility agriculture on terraced fields, it is necessary to improve the basic structure of the greenhouse so that It has the function of soil salt discharge;

[0010] 6) The soil texture of coastal saline soil is very poor, the clay content is as high as 90%, low nutrient content, poor water permeability, lack of aggregate structure, slow decomposition of organic matter and other reasons restrict the growth and output of crops or economic crops

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