Planting method of lotus leaf wrapped soil in the submerged plant Erythrina chinensis seedlings in the shallow water area of ​​Tongjiang lake

Abstract

The invention discloses a method for planting the seedlings of the submerged plant Erythrina oleifera in the shallow water area of ​​Tongjiang shallow lake in spring wrapped in soil. The water depth is selected to be 0.5-0.8m, the transparency of the water body is kept at about 40cm, and the bottom mud should be able to grow balmia balm. Provide a planting area with sufficient nutrients; wrap 1 clump of bitter grass seedlings with moist natural lake bottom soil, 3-4 trees per clump, the size of the mud mass is 15-20cm in height, 10-15cm in diameter at the bottom, and cylindrical in shape Shaped mud ball, the seedlings are wrapped in the middle of the cylindrical mud ball; then the mud ball is completely wrapped with fresh lotus leaves, the seedlings are exposed, and the lotus leaves are tied tightly at the exposed mouth of the seedlings with dry straw, which will exceed the height of the mud ball. Cut off the excess lotus leaves; put the mud balls planted with bitter grass on the water surface, and the distance between each mud ball is about 5m, so that it can sink to the bottom of the water and grow naturally. It solves the problem of difficulty in artificially planting bitter grass in shallow water areas, and can quickly restore the ecological functions of lakes.

Description

technical field [0001] The invention relates to an aquatic vegetation ecological restoration technology, in particular to a method for planting lotus leaves of Vallisneri anatans (Lour.) Hara seedlings wrapped in soil in shallow water areas of Tongjiang shallow lakes in spring. Background technique [0002] Together with the rivers, the river-connecting lakes in the Jianghuai Basin constitute a unique river-lake compound wetland with a wide distribution and a large area. The submerged vegetation in these Tongjiang lakes has been well developed in history and bred rich biodiversity, which plays an important role in maintaining the stability and ecological security of the Tongjiang lake wetland ecosystem. With the development of the economy, the utilization intensity of wetland resources has gradually increased, and the ecological process of lake wetlands has been seriously disturbed. In recent years, due to the rapid development of the aquaculture industry, especially the se...

AI Technical Summary

Problems solved by technology

For the colonization of submerged plants, especially bitter grass, the current method is time-consuming and laborious, especially in wetlands with a water depth of less than 1m, it is difficult to directly colonize submerged plant seedlings manually

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