Effects of the Enclosure on Plant Communities in Temperate Grassland

doi:10.11733/j.issn.1007-0435.2023.05.023

Acta Agrestia Sinica ›› 2023, Vol. 31 ›› Issue (5): 1481-1489.DOI: 10.11733/j.issn.1007-0435.2023.05.023

Effects of the Enclosure on Plant Communities in Temperate Grassland

SUN Chong-zhi¹, TANG Shi-ming¹, WANG Zhen¹, LI Na², XU Xue-bao³, YUAN Feng-qin², WANG Cheng-jie³, LI Yuan-heng¹, ZHANG Yu-juan¹, LI Shu-cheng⁴, JIN Ke¹

1. Key Laboratory of Forage Efficient Production Model Innovation, Ministry of Agriculture and Rural Affairs, Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot, Inner Mongolia 010000, China;
2. School of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia 010000, China;
3. College of Grassland, Resources and Environment. Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010000, China;
4. College of Agriculture. Anhui Science And Technology University, Fengyang, Anhui Province 233100, China

Received:2022-11-08 Revised:2022-12-26 Online:2023-05-15 Published:2023-05-31

温带草原围封对植物群落的影响

孙崇之¹, 唐士明¹, 王珍¹, 李娜², 徐学宝³, 袁凤钦², 王成杰³, 李元恒¹, 张玉娟¹, 李树成⁴, 金轲¹

1. 农业农村部饲草高效生产模式创新重点试验室, 中国农业科学院草原研究所, 内蒙古呼和浩特 010000;
2. 内蒙古大学生态与环境学院, 内蒙古呼和浩特 010000;
3. 内蒙古农业大学草原与资源环境学院, 内蒙古呼和浩特 010000;
4. 安徽科技学院农学院, 安徽凤阳 233100

通讯作者: 唐士明,E-mail:tangshiming@caas.cn
作者简介:孙崇之(1998-)，男，汉族，山东泰安人，硕士研究生，主要从事草地围封土壤碳组分变化及植被群落恢复研究，E-mail: 82101212116@caas.cn
基金资助:
内蒙古自治区“科技兴蒙”国际合作引导项目(2021CG0020);国家重点研发计划项目(2022YFF1302801);内蒙古自然科学基金(2021MS03081, 2021MS03037)资助

Abstract

Abstract: Changes in species diversity and above-ground biomass after enclosure on the degraded grasslands are of importance to the grassland ecosystem restoration. In this study,we investigated the effects of different years of enclosure (10,17,26 and 39 years) on plant community structure,species diversity and aboveground biomass,and the relationship among them in a typical temperate grassland. The results showed that the above-ground biomass of the plant community tended to increase and then decrease with increasing years of enclosure. The community structure changed from perennial forb (such as:Carex korshinskyi),annual and biennial herbs (such as:Artemisia scoparia Waldst. et Kit.) to perennial grasses (such as:Leymus chinensis and Stipa grandis). Over that enclosure year,the plant community structure succession gradually tilted toward miscellaneous species. Therefore,the enclosure management should take into account the local climate,precipitation and other factors for making scientific decisions on the enclosure years to achieve the optimal effect on the ecological restoration of grassland.

Key words: Enclosure, Temperate grassland, Plant diversity, Community structure, Importance value, Above-ground biomass

摘要： 物种多样性和地上生物量的变化是退化草地围封后需要关注和研究的重要问题。本研究以锡林浩特典型草原为研究对象,探究不同围封年限(10年、17年、26年、39年)对植物群落结构、物种多样性和地上生物量以及两者之间关系的影响。结果表明:随围封年限增加,植物群落地上生物量呈先增加后降低的趋势;围封后,草原植被群落由以杂类草黄囊苔草(Carex korshinskyi)和一二年生草本植物为主向以多年生禾草(羊草(Leymus chinensis)、大针茅(Stipagrandis))为优势种群落转变,但随着围封年限的增加,植物群落的演替方向又逐渐向杂类草方向倾斜;草原围封显著提升了植物群落盖度、高度和地上生物量,植物多样性呈先下降后上升趋势,且各α多样性指数与地上生物量呈显著负相关。本研究证明进行草原围封管理应结合当地气候、降水等因素,科学决策围封年限才能达到最好的生态恢复效果。

关键词: 围封, 温带草原, 植物多样性, 群落结构, 重要值, 地上生物量

CLC Number:

S812.6

SUN Chong-zhi, TANG Shi-ming, WANG Zhen, LI Na, XU Xue-bao, YUAN Feng-qin, WANG Cheng-jie, LI Yuan-heng, ZHANG Yu-juan, LI Shu-cheng, JIN Ke. Effects of the Enclosure on Plant Communities in Temperate Grassland[J]. Acta Agrestia Sinica, 2023, 31(5): 1481-1489.

孙崇之, 唐士明, 王珍, 李娜, 徐学宝, 袁凤钦, 王成杰, 李元恒, 张玉娟, 李树成, 金轲. 温带草原围封对植物群落的影响[J]. 草地学报, 2023, 31(5): 1481-1489.

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Effects of the Enclosure on Plant Communities in Temperate Grassland

温带草原围封对植物群落的影响

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