Saline-alkali ditch slope repairing method and application by cultivating Bermuda grass with plant growing bags

Abstract

The invention discloses a saline-alkali ditch slope repairing method by cultivating Bermuda grass with plant growing bags, which comprises the following steps of: (1) preparing plant growing bags: placing the grass stems of Bermuda grass into plant matrices, wrapping with non-woven fabric, sealing, and making into the shape connected by a plurality of the Chinese character 'Tu'; (2) stacking the plant growing bags: the plant growing bags are staggered and stacked according to the zipper type; (3) fixing the plant growing bags: as for a slope with the gradient less than 45 degrees, fixing is not needed; as for the slope with the gradient larger than 45 degrees, an anchor rod is used for fixing; (4) curing the plant growing bags: trimming is conducted when the Bermuda grass grows to 15cm; irrigation is carried out in time under the condition of drought until a plateau is formed; in the period of accumulation of salt in the surface soil, the leaves are sprayed with spermidine to improve the salt tolerance. The saline-alkali ditch slope repairing method and application by cultivating Bermuda grass with the plant growing bags achieve the stabilization and vegetation restoration of the saline-alkali ditch slope through the synergistic use of a plurality of key technical means, and have important significance for the efficient development and utilization of the saline-alkali land andthe reconstruction of the fragile ecology of the saline-alkali ditch.

Description

technical field [0001] The invention relates to the technical field of saline-alkali ditch slope ecological treatment, in particular to a saline-alkali ditch slope repair method and application for using planting bags to cultivate bermudagrass. Background technique [0002] There are about 950 million hm in the world 2 The soil of China is threatened by salinization, accounting for about 5% of the world's arable land, especially with the increasing trend of global warming, the problem of soil salinization in the middle and low latitudes is becoming more and more obvious. The coastal saline-alkali land in the Yellow River Delta has high soil salinity content, high groundwater level and easy salt return. Its development and utilization has become a top priority and cannot be delayed. In particular, the saline-alkali slopes are exposed, and the vegetation restoration is difficult and easy to collapse, which seriously restricts the efficient development, utilization and ecologi...

AI Technical Summary

Problems solved by technology

However, the existing problems in the application of vegetation bags on saline-alkali land are as follows: (1) the selected plants have poor salt tolerance, slow growth rate, low coverage, and there is still erosion of slope sediment; (2) the combination of vegetation bags is not tight , prone to landslides; (3) Vegetative bags are not rich in nutrients, poor in water retention, and affected by returning salt, the survival rate is low

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