Acta Agrestia Sinica ›› 2024, Vol. 32 ›› Issue (7): 2214-2224.DOI: 10.11733/j.issn.1007-0435.2024.07.022

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Analysis of Vegetation Community Characteristics under Different Restoration Measures in Xilinhot Open-pit Coal Mine Dump

ZHAO Wei-xuan, WANG Tong-tong, SHEN Hao-wei, LI Yue, GAO Tian, WANG Ming-jiu   

  1. College of Grassland and Resources and Environment/Key Laboratory of Grassland Resources of Ministry of Education, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China
  • Received:2023-12-27 Revised:2024-02-01 Published:2024-08-03

锡林浩特露天煤矿排土场不同恢复措施植被群落特征分析

赵伟璇, 王彤彤, 沈浩伟, 李岳, 高天, 王明玖   

  1. 内蒙古农业大学草原与资源环境学院/草地资源教育部重点实验室, 内蒙古 呼和浩特 010018
  • 通讯作者: 王明玖,E-mail:wangmj_0540@163.com
  • 作者简介:赵伟璇(1998-),男,汉族,内蒙古包头人,硕士研究生,主要从事矿区排土场生态修复研究,E-mail:zwx980804@163.com
  • 基金资助:
    内蒙古典型矿区土壤和植被修复重建及保护关键技术研究(2020ZD0020-3)资助

Abstract: Effective vegetation restoration in the soil stacking area will contribute to the restoration of ecological functions in the mining area and its surrounding areas. Different restoration measures have different effects on vegetation restoration. Different restoration measures provide different environments for vegetation restoration,resulting in differences in vegetation community succession. Taking the soil stacking area of the West No. 2 open-pit coal mine in Shengli Coalfield,Xilinguole League as the research object,restoration work was conducted in 2007. This study investigated the plant communities under three different restoration measures in the 13th year of restoration. The three different restoration measures were respectively the straw coverage measure (SW),the sand barrier coverage measure (SZ),and the manual strip sowing measure (RT). The slopes under different measures were divided into four heights:upper slope (PS),middle slope (PZ),lower slope (PX),and platform (PT). The results showed that (1) the restoration effect of the coverage measures was obvious,and species diversity was significantly higher than the RT measure,with the SW measure having better effect. (2) As for the height under the same restoration measure,the PT had the best restoration effect,and slope gradient had a certain impact on plant growth. (3) The annual herb Brassica rapa var. oleifera,the perennial herb Elymus dahuricus,and the shrubs Caragana microphylla and C. korshinskii had good adaptability to the ecological environment of the soil stacking area in Shengli Coalfield.

Key words: Xilingol league, Open-pit coal mine, Soil dumping site, Biological fence measures, Sand barrier measures

摘要: 有效的排土场植被重建会有利于矿区及周边生态功能的恢复,不同措施植被恢复效果不同。以锡林郭勒盟胜利煤田西二号露天煤矿外排土场为研究对象,于2007年开始进行修复工作,本研究对排土场恢复第13年3种不同恢复措施下的植物群落进行调查。其中,3种不同措施分别为生物笆覆盖措施(简称SW)、沙障覆盖措施(简称SZ)和人工条播措施(简称RT)。不同措施坡面同时分为坡上(PS)、坡中(PZ)、坡下(PX)和平台(PT)4个高度。结果表明:(1)覆盖措施恢复效果明显,物种多样性显著高于RT措施,其中SW措施效果较好。(2)同一措施下各高度中,PT恢复效果最好,坡度对于植物生长存在一定影响。(3)一年生草本植物芸薹(Brassica rapa var. oleifera),多年生草本植物披碱草(Elymus dahuricus),灌木植物小叶锦鸡儿(Caragana microphylla)、柠条锦鸡儿(C. korshinskii)对于胜利煤田矿区排土场生态环境适应性较好。

关键词: 锡林郭勒盟, 露天煤矿, 排土场, 生物笆措施, 沙障措施

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