Ecological Restoration and Community Dynamic Succession in Chilechuan Grassland

doi:10.11733/j.issn.1007-0435.2022.11.026

Acta Agrestia Sinica ›› 2022, Vol. 30 ›› Issue (11): 3090-3097.DOI: 10.11733/j.issn.1007-0435.2022.11.026

Ecological Restoration and Community Dynamic Succession in Chilechuan Grassland

WANG Jun-fang¹, HAN Guo-dong¹, WANG Zhao-ming², YUN Jin-feng¹, QIN Jie¹

1. Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010030, China;
2. Mengcao Ecological Environment(Group) Co. Ltd., Hohhot, Inner Mongolia 010030, China

Received:2021-12-13 Revised:2022-04-24 Published:2022-12-02

敕勒川草原生态恢复群落动态演替

王君芳¹, 韩国栋¹, 王召明², 云锦风¹, 秦洁¹

1. 内蒙古农业大学, 内蒙古呼和浩特 010030;
2. 蒙草生态环境(集团)股份有限公司, 内蒙古呼和浩特 010030

通讯作者: 韩国栋,E-mail:nmghanguodong@163.com
作者简介:王君芳(1983-)，男，满族，内蒙古凉城人，博士，高级工程师，主要从事恢复生态学研究，E-mail:wangjunfang2005@163.com
基金资助:
草地资源教育部重点实验室；内蒙古自治区草地管理与利用重点实验室；教育部创新团队-草地资源可持续利用的研究(IRT-17R59)资助

Abstract

Abstract: To reveal the dynamic change law of community in the process of ecological restoration of degraded grassland,an experiment was carried out in chilechuan grassland at the south foot of Yinshan Mountain. Through continuous observation for 10 years,the changes in species number,individual number,aboveground biomass,and species diversity of ecological restoration of degraded grassland in different years were studied,and the differences in species diversity between artificial restoration,natural restoration,and primary vegetation were compared. The results showed that the margarlef index,Shannon Wiener index,and Simpson index all showed a trend of first increasing,then decreasing,and then stabilizing with time,while the Pielou evenness index showed a trend of first decreasing and then increasing. Under different restoration methods,the diversity indexes of natural restoration plots and original plots were significantly higher than those of artificial disturbance plots (P<0.05). The natural restoration guided by artificial disturbance can promote the ecological restoration of degraded grassland,improve plant diversity,and accelerate the process of restoration succession.

Key words: Degraded grassland, Manual reversion, Natural recovery, Species diversity, Community dynamics, Succession

摘要： 为揭示退化草原生态恢复过程群落动态变化规律，在阴山南麓敕勒川草原开展生态恢复试验，通过连续10年监测，研究不同年际退化草原生态恢复物种数、个体数、地上生物量和物种多样性变化，比较人工恢复、自然恢复与原生植被之间的物种多样性差异。结果表明：随着恢复时间的增加，草地Margarlef指数、Shannon-Wiener指数、Simpson指数均出现先增加后减少再稳定的趋势，而Pielou均匀度指数呈现先减少后增加趋势;不同恢复方式下，自然恢复样地和原生样地多样性指数均显著高于人工恢复样地(P<0.05)。人工干扰引导自然恢复能够促进退化草原生态恢复，提高植物多样性，加速恢复演替进程。

关键词: 退化草原, 人工恢复, 自然恢复, 物种多样性, 群落动态, 演替

CLC Number:

Q145.24

WANG Jun-fang, HAN Guo-dong, WANG Zhao-ming, YUN Jin-feng, QIN Jie. Ecological Restoration and Community Dynamic Succession in Chilechuan Grassland[J]. Acta Agrestia Sinica, 2022, 30(11): 3090-3097.

王君芳, 韩国栋, 王召明, 云锦风, 秦洁. 敕勒川草原生态恢复群落动态演替[J]. 草地学报, 2022, 30(11): 3090-3097.

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Ecological Restoration and Community Dynamic Succession in Chilechuan Grassland

敕勒川草原生态恢复群落动态演替

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