Ecological Reclamation Effect of Mining Dump in Loess Area

Lü Chun-juan; BAI Zhong-ke; CHEN Wei-guo

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Ecological Reclamation Effect of Mining Dump in Loess Area

- Ecological Reclamation Effect of Mining Dump in Loess Area
- Bulletin of Soiland Water Conservation Vol. 30, Issue 6, Pages: 232-236(2011)
- 作者机构：
  
  1. 山西农业大学资源环境学院，山西太谷,030801
  2. 中国地质大学土地科学技术学院国土资源部土地整治重点实验室,北京,100083
  3. 山西农业大学生命科学学院，山西太谷,030801
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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Lü Chun-juan, BAI Zhong-ke, CHEN Wei-guo. Ecological Reclamation Effect of Mining Dump in Loess Area[J]. Bulletin of Soiland Water Conservation, 2011, 30(6): 232-236.
DOI：

Lü Chun-juan, BAI Zhong-ke, CHEN Wei-guo. Ecological Reclamation Effect of Mining Dump in Loess Area[J]. Bulletin of Soiland Water Conservation, 2011, 30(6): 232-236. DOI：

摘要

以复垦20a的平朔露天煤矿排土场生态系统为研究对象

从土壤重构到先锋树种筛选及生态系统恢复不同阶段植被演变、动物定居、微生物、土壤养分变化等方面

系统分析了其生态重建技术的实施效果。结果表明

平朔矿区已形成"黄土母质直接覆盖表层培肥熟化"特色复垦技术;筛选出刺槐×油松×柠条

刺槐×油松

刺槐×沙棘

刺槐纯林等多种植被配置模式;随着复垦年限的延长

野生物种大量入侵

土壤种子库逐渐形成

物种多样性增加

植被群落组成趋于稳定

动物、微生物和土壤养分呈现增加趋势

表明矿区生态系统已进入正常的演替过程。但受矿区特殊生境和自然客观条件的限制

演替过程中某些植被出现病虫害、种内或种间的水分竞争等问题已导致部分植被退化

因此植被恢复成功后其生态管理还需进一步研究。

Abstract

Taking a reclaimed ecosystem in dump of Pingshuo opencast coal mine for 20 years as the research object

the implementation effects of ecological rehabilitation technologies were analyzed including soil reconstruction

screening pioneer species

vegetation succession and changes of animal

microorganism and soil nutrient.Results showed that the particular reclamation technologies-dump surface were covered directly by loess parental material

then ripened by fertilizing

were developed in Pingshuo mine.Many vegetation configuration modes were screened with Caragana korshinsk×Robinia pseudoacacia×Pinustabulaeformis

Robinia pseudoacacia×Pinus tabulaeformis and Robinia pseudoacacia×Hippophae rhamnoides etc.With the increasing of reclamation years

wild species invaded

soil seed bank gradually formed and species diversity has increased.Moreover

vegetation communities tended to stability and animal

microbial and soil nutrient presented the increasing trend.All these changes indicated that the ecological system have entered a normal succession process.But duo to the influence of special habitat and natural objective conditions

some problems such as diseases and pests

intraspecific and interspecific moisture competition etc

have resulted in vegetation degeneration.So ecological management of plants succession needed to be study in detail.

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