Cold-area sandy steep slope biological habitat construction method

Abstract

The invention discloses a cold-area sandy steep slope biological habitat construction method. The method comprises the following steps of (1), slope surface finishing; (2), bank fixation with piles; (3), weaving of wattle; (4), planting of dryland willows; (5), planting of arbors. Through the four-in-one technological system of 'pile-fence-willow cluster-elm forest', the vegetation coverage of a sandy steep slope is improved rapidly, and the water storage and soil fixation capacity of the sandy steep slope is enhanced; the piles, the lush willow clusters and the elm forest can provide places for perching, nesting, hiding, courting and finding food for birds or amphibians; willow roots and dense shade of the willows provide places for having a rest, taking refuge and finding food for fish; and dead twigs and withered leaves of the trees and the piles rotten after several years are an important source of humus and provide food and diversified habitats for bentonic organisms and aquatic insects, and thus distribution of the aquatic insects is influenced indirectly. The method is simple and convenient, quick in effect, low in cost and capable of being widely used for construction of the sandy steep slope biological habitat in the Songhua River basin.

Description

technical field [0001] The invention relates to a method for constructing a biological habitat on a sandy steep slope in a cold region. Background technique [0002] During the meandering evolution of natural rivers, the slope at the lower end of the concave bank is scoured to a certain extent, and a steep slope is often formed naturally. Steep slopes generally appear in the river sections where the mountainous areas and plains of compound rivers meet, and are more common in Northeast my country, especially in the Songhua River Basin. The natural steep slope has high vegetation coverage and thick soil humus layer. As a corridor connecting the water body and the buffer zone, it is one of the most important habitats for species sources and organisms. However, while land reclamation and sand mining activities in the Songhua River Basin ensure national food security and promote the economic development of Heilongjiang Province, they also destroy the original marsh wetlands in t...

AI Technical Summary

Problems solved by technology

And some construction methods use expensive ecological bags, ecological slope protection substrates, etc. Although they create a diverse habitat for organisms, they are not conducive to large-scale promotion due to their high cost.

At present, the research on the construction of biological habitats on sandy steep slopes in cold regions has not received sufficient attention. At the same time, there is still room for improvement in the restoration technology of biological habitats in this area.