典型草原不同功能群物种多样性与生产力关系研究

doi:10.11733/j.issn.1007-0435.2023.07.004

草地学报 ›› 2023, Vol. 31 ›› Issue (7): 1939-1949.DOI: 10.11733/j.issn.1007-0435.2023.07.004

典型草原不同功能群物种多样性与生产力关系研究

汤靖磊¹, 任治国², 张学渊¹, 张依尧¹, 王忠武¹, 王珍³, 索明春⁴, 任海燕¹

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, 内蒙古自治区草地管理与利用重点实验室, 内蒙古呼和浩特市 010011;
2. 内蒙古小草数字生态产业有限公司, 内蒙古呼和浩特市 010070;
3. 中国农业科学研究院草原研究所, 内蒙古呼和浩特市 010010;
4. 内蒙古蒙草草种业有限公司, 内蒙古呼和浩特市 010070

收稿日期:2023-04-10 修回日期:2023-06-05 出版日期:2023-07-15 发布日期:2023-08-01
通讯作者: 任海燕,E-mail:renhy@imau.edu.cn
作者简介:汤靖磊(1999-),男,汉族,内蒙古巴彦淖尔人,硕士研究生,主要从事草地生态与管理研究,E-mail:alei@emails.imau.edu.cn
基金资助:
国家重点研发计划(2022YFF1302300)；国家自然科学基金(32260301)；中央引导地方科技发展资金项目(2022ZY0210)资助

Relationships between Species Diversity and Productivity of Different Functional Groups in a Typical Steppe in Inner Mongolia

TANG Jing-lei¹, REN Zhi-guo², ZHANG Xue-yuan¹, ZHANG Yi-yao¹, WANG Zhong-wu¹, WANG Zhen³, SUO Ming-chun⁴, REN Hai-yan¹

1. Key Laboratory of Grassland Resources of the Ministry of Education, Key Laboratory of Grassland Management and Utilization of Inner Mongolia, College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010011, China;
2. Inner Mongolia Xiao cao Digital Ecological Industry Co., Ltd, Hohhot, Inner Mongolia 010070, China;
3. Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot, Inner Mongolia 010010, China;
4. Inner Mongolia Meng cao Grass Industry Co., Ltd., Hohhot, Inner Mongolia 010070, China

Received:2023-04-10 Revised:2023-06-05 Online:2023-07-15 Published:2023-08-01

摘要/Abstract

摘要： 生物多样性与生态系统生产力的关系是生态学研究的热点问题，功能群是调节二者关系的重要因素。本研究对内蒙古多伦典型草原13个样点展开了群落调查，探究了不同水平下物种丰富度与生产力关系，结果表明：典型草原生产力和物种多样性在主成分分析中占有较高的解释度，多年生禾草、多年生杂类草是典型草原生产力和物种丰富度的主要贡献功能群。功能群水平功能群内物种数与生产力关系显著正相关；群丛水平物种丰富度与生产力无显著相关；植被亚型水平物种丰富度与生产力显著正相关。剔除群落中非优势功能群灌木、半灌木后，群丛水平二者关系由无显著相关转变为显著正相关；植被亚型水平二者显著正相关关系增强。本研究揭示了典型草原物种多样性与生产力的正线性关系受到了功能群组成的调控，优势功能群促进了群丛水平和植被亚型水平二者关系的形成。

关键词: 草原, 生物多样性, 生态系统功能, 群落分类, 功能群

Abstract: The relationship between biodiversity and ecosystem productivity has been a central issue in ecological research,and functional groups take a critical role on regulating the relationship. This study investigated thirteen plant communities in typical steppe located at Duolun county in Inner Mongolia,and explored the relationship between species richness and productivity at different levels. We found out that:Productivity and species diversity were crucial indicators to explain ecosystem functions and stability and occupied a high degree of interpretation in PCA analysis. Perennial grasses and forbs are the main functional groups contributing to productivity and species richness. Species number was significantly positively correlated with plant productivity at functional group level. Species richness has no significant correlation with productivity at the level of association types and was significantly positively correlated with productivity at the level of the typical steppe. The relationship changed from no significant correlation to a significant positive correlation in association types and a more significant positive correlation in typical steppe after removing shrubs and semi-shrubs. These findings suggest that the composition of functional groups regulates the positive linear relationship between species diversity and productivity of typical steppe. Dominant functional groups promote the formation of the relationship between association types and typical steppe.

Key words: Steppe, Biodiversity, Ecosystem functions, Community classification, Plant functional groups

中图分类号:

S812.5

汤靖磊, 任治国, 张学渊, 张依尧, 王忠武, 王珍, 索明春, 任海燕. 典型草原不同功能群物种多样性与生产力关系研究[J]. 草地学报, 2023, 31(7): 1939-1949.

TANG Jing-lei, REN Zhi-guo, ZHANG Xue-yuan, ZHANG Yi-yao, WANG Zhong-wu, WANG Zhen, SUO Ming-chun, REN Hai-yan. Relationships between Species Diversity and Productivity of Different Functional Groups in a Typical Steppe in Inner Mongolia[J]. Acta Agrestia Sinica, 2023, 31(7): 1939-1949.

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典型草原不同功能群物种多样性与生产力关系研究

Relationships between Species Diversity and Productivity of Different Functional Groups in a Typical Steppe in Inner Mongolia

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