Method for promoting growth of evergreen arbors in manganese ore degraded area

A technology for evergreen trees and degraded areas, applied in the field of ecological restoration, can solve the problems of poor overall ecosystem function, scarce native tree species, and low anti-interference ability, and achieve the effects of convenient material selection, increased drought resistance, and reduced costs.

Inactive Publication Date: 2012-06-27
HUNAN UNIV OF SCI & TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

The use of these artificial assisted techniques can effectively promote vegetation reconstruction, but the reconstructed vegetation structure is simple, species diversity is low, herbs dominate, native tree species are rare, anti-interference ability is low, and the overall function of the ecosystem is poor.
When directly cultivating native tree seedlings on mine land, it is necessary to cover thicker soil and add more exogenous substances, and it is necessary to replant seedlings and artificial tending repeatedly, which increases the cost

Method used

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Examples

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Embodiment

[0022] From January 2007 to October 2011, experiments were carried out in the degraded area of ​​Xiangtan manganese mine.

[0023] (1) In January 2007, a bare land was selected in the degraded manganese mine area, and a planting pit was dug. The pit was 50cm long, 30cm wide, and 30cm deep. The planting pits are lined up in a straight line with a row spacing of 2m and a planting pit spacing of 1.5m. In February, each pit was transplanted with 1 syringa ( Rhus chinensis ) seedlings with an average plant height of 73cm, and the pits were filled with polluted soil. In April, Misty Water Ge ( Pouzolzia zeylanica ) was transplanted near the base of the stems of A. chinensis, and 12 plants of Pueraria japonica were transplanted around each plant.

[0024] (2) The survey was conducted in September 2009, and the survival rate of A. chinensis reached 92%, with an average plant height of 135cm. Mishui Ge grows in flakes among the salt skin trees, with an average height of 53cm.

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PUM

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Abstract

The invention discloses a method for promoting growth of evergreen arbors in a manganese ore degraded area. The method comprises the following steps of: (1) digging planting pits in a manganese ore polluted and degraded bare land, transplanting rhus chinensis seedlings to the planting pits, filling the pit with polluted soil, and transplanting pouzolzia zeylanica nearby the rhizome base of the rhus chinensis; (2) when the rhus chinensis is grown to the height of 1.35 meters, pruning the lower branches of the rhus chinensis, transplanting evergreen cyclobalanopsis glauca, cinnamomum camphora and schima superba seedlings below the canopy of the rhus chinensis, wherein the distance between each planting point of the three arbor seedlings and the rhizome base of the rhus chinensis is 60 to 80centimeters, and when the arbor seedlings are transplanted, only the pouzolzia zeylanica at each arbor planting point is removed, and the pouzolzia zeylanica at other positions is reserved; and (3) collecting moss in the manganese ore polluted area, and covering the moss on the rhizome bases of the cyclobalanopsis glauca, cinnamomum camphora and schima superba seedlings. The method is convenient to take materials, simple and feasible.

Description

technical field [0001] The invention relates to the field of ecological restoration, in particular to a method for promoting the growth of evergreen trees in manganese ore degraded areas. Background technique [0002] The ecological system in the mining area is extremely degraded, the vegetation is seriously damaged, the soil erosion is serious, and the diffusion of heavy metals causes regional pollution. The ecological restoration of the mine degraded ecosystem is one of the priority issues in the implementation of the sustainable development strategy in my country. The primary task of ecological restoration in mining areas is to restore and rebuild damaged vegetation. Plants can fix and improve the soil, absorb and hold heavy metals, and prevent soil erosion and the spread of heavy metals. Cultivation of herbaceous plants has its limitations: herbaceous plants are short and have low biomass. In subtropical and temperate regions, many herbaceous plants die in winter, resu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
Inventor 向言词冯涛刘阿梅严明理李会东曾荣今朱佳文彭秀花
Owner HUNAN UNIV OF SCI & TECH
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