Method for restoring ecology in northern riverbank sand mining site

A technology for ecological restoration and riparian zone, applied in land preparation methods, botanical equipment and methods, horticulture, etc., can solve problems such as few reports of applied technology, achieve wide applicability, improve plant habitat, and enhance ecosystem conservation of soil and water. Effect

Active Publication Date: 2017-07-21
HEILONGJIANG ACAD OF SCI INST OF NATURAL RESOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the ecological restoration of sand excavation sites at home and abroad mainly focuses on vegetation construction and theoretical research, w...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1: Arranging and improving the soil matrix of the sand mining site. First, the original soil matrix (sandy matrix) is leveled, mainly to remove the sand accumulated on the surface due to sand mining, and to expose the original matrix as much as possible. The original matrix is ​​generally three In the first case, soil matrix, sandy-soil mixed matrix or sandy matrix; secondly, for the soil matrix, evenly cover the soil with a thickness of 1-2mm; Substrate, covering soil thickness of 5 ~ 10mm.

[0022] Step 2: To create a niche, dig a "fish scale pit" on the sand mining site covered with soil, the depth of the "fish scale pit" is 400-600mm, and the area is 4-5m 2 , with a density of 1hm 2 There are 5 to 10 inside, and its purpose is to store water, which is beneficial to plant growth.

[0023] Step 3: Selection of plant species, including selection of herbaceous plants and woody plant species, ① selection of herbaceous plant species, selection of plants that are re...

Embodiment 2

[0027] Step 1: Arranging and improving the soil matrix of the sand mining site. First, the original soil matrix (sandy matrix) is leveled, mainly to remove the sand accumulated on the surface due to sand mining, and to expose the original matrix as much as possible. The original matrix is ​​generally three In the first case, soil matrix, sandy-soil mixed matrix or sandy matrix; secondly, for the soil matrix, evenly cover the soil with a thickness of 1-3mm; Substrate, covering soil thickness of 5 ~ 10mm.

[0028] Step 2: To create a niche, dig a "fish scale pit" on the sand mining site covered with soil, the depth of the "fish scale pit" is 400-600mm, and the area is 2-5m 2 , with a density of 1hm 2 There are 5 to 10 inside, and its purpose is to store water, which is beneficial to plant growth.

[0029] Step 3: Selection of plant species, including selection of herbaceous plants and woody plant species, ① selection of herbaceous plant species, selection of plants that are re...

Embodiment 3

[0033]Step 1: Arranging and improving the soil matrix of the sand mining site. First, the original soil matrix (sandy matrix) is leveled, mainly to remove the sand accumulated on the surface due to sand mining, and to expose the original matrix as much as possible. The original matrix is ​​generally three In this case, soil matrix, sandy-soil mixed matrix or sandy matrix; secondly, for the soil matrix, evenly cover the soil with a thickness of 2mm; for the sandy-soil mixed matrix, cover the soil with a thickness of 5mm; The soil thickness is 10mm.

[0034] Step 2: To create a niche, dig a "fish scale pit" on the sand mining site covered with soil, the depth of the "fish scale pit" is 500mm, and the area is 2 to 5m 2 , with a density of 1hm 2 There are 10 inside, and its purpose is to store water, which is beneficial to plant growth.

[0035] Step 3: Selection of plant species, including selection of herbaceous plants and woody plant species, ① selection of herbaceous plant s...

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Abstract

The invention provides a method for restoring ecology in northern riverbank sand mining site, and belongs to the sand mining site ecology restoration method technology field. The method comprises arranging and improving sand mining site soil matrix, and comprises the steps of first plowing original soil matrix, namely removing sand generated in the process of sand mining on the face of land mainly to expose original habitat matrix; manufacturing a small habitat, namely digging a fish scale pit on the sand mining site covered by soil; selecting plant species, namely selecting herbaceous plants or woody plants; planting the plants; managing at a seedling stage, namely irrigating by pouring or sprinkling, and fertilizing with an organic fertilizer. The protruding characteristics of the present invention are that vegetation restoration and habitat restoration are integrated, so that vegetation coverage rate can be obviously improved; plant habitat can be improved; ecological system can be enhanced; water and soil can be maintained; and pollutant can be degraded. An experiment shows that the vegetation coverage rate is raised by 40%-60%, and the plant productivity is raised by more than 30%-50%. The method plays an important role in maintaining regional ecology safety and grain production safety.

Description

technical field [0001] The invention relates to an ecological restoration method for sand-mining land in the northern river bank, and belongs to the technical field of ecological restoration methods for sand-mining land. Background technique [0002] In recent years, driven by economic interests, sand mining activities in river basins have been rampant, and the sand mining behavior has turned the riparian zone into a belt-shaped desertification zone, forming a sand mining trace (sand extracted from the river is piled to the riparian zone, sand The sandy land formed after being transported away), its activities have wiped out the wetlands and vegetation in the past. According to data, taking the sand field in the Ash River Basin in Harbin as an example, its total area in 2012 was about 3 million square meters. Sand mining changes the local soil structure, making vegetation unable to grow and destroying the wetland ecological environment. Due to the weakening of windproof an...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G1/00A01G17/00
CPCA01B79/02A01G17/005
Inventor 倪红伟王继丰韩大勇杨帆隋心曹宏杰钟海秀许楠曾昭文王建波付晓玲邢军会刘赢男谢立红黄庆阳张荣涛伍一宁
Owner HEILONGJIANG ACAD OF SCI INST OF NATURAL RESOURCES
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