Intraspecific more than interspecific diversity plays an important role on Inner Mongolia grassland ecosystem functions: A microcosm experiment

生态学 生态系统 生物 生物多样性 微观世界 生物量(生态学) 物种多样性 土壤生态学 多样性指数 土壤肥力 土壤生物多样性 物种丰富度 土壤水分
作者
Man Jiang,Luoyang He,Baijie Fan,Tao Wang,Nan Yang,Yulin Liu,Y. Xu,Ke Dong,Guang Hao,Lei Chen,Anzhi Ren,Na Zhao,Jinlong Wang,Yubao Gao
出处
期刊:Science of The Total Environment [Elsevier]
卷期号:826: 154134-154134 被引量:7
标识
DOI:10.1016/j.scitotenv.2022.154134
摘要

Biodiversity changes in terrestrial communities continue in the context of global changes. However, the interactive effects of the changes in diversity at inter- and intraspecific levels as well as cascading effects from plant to soil microorganisms on ecosystem functioning under climate changes remains largely unexplored. Using grassland species in the semi-arid Inner Mongolia Steppe, we conducted a microcosm experiment to assess how drought treatment (non-drought and drought conditions), species diversity (2, 4, and 7 species) and genotypic diversity of the dominant species Leymus chinensis (1, 3, and 6 genotypes) affected ecosystem functions directly or indirectly via regulating plant community functional structure [community-weighted mean (CWM) and functional dispersion (FDis)] and soil microbial diversity (Shannon-Wiener index). Drought treatment, species and genotypic diversity significantly and interactively affected soil N, P cycle and soil multifunctionality as well as soil microbial diversity. Drought treatment significantly affected biomass, soil C cycle, CWM and soil microbial diversity. Species diversity significantly affected soil N cycle, CWM and FDis, and genotypic diversity significantly affected all soil functions and soil microbial diversity. CWM regulated the responses of all ecosystem functions except soil N cycle to the changes in soil moisture and species diversity, which supports the mass ratio hypothesis. The cascading effect from genotypic diversity to soil microbial diversity was significant on belowground biomass but not on any of the other ecosystem functions observed in this study. These findings highlight the importance of genotypic diversity of the dominant species L. chinensis in affecting belowground ecosystem functioning as well as soil microbial diversity, which should not be ignored for grassland protection and management. This study provides further insights into biodiversity and ecosystem functioning mechanisms in semi-arid grasslands in the context of global climate changes.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
wqc2060完成签到,获得积分10
9秒前
赵焱峥完成签到 ,获得积分10
9秒前
fay1987完成签到,获得积分10
13秒前
onlooker完成签到 ,获得积分10
32秒前
小马甲应助mgqqlwq采纳,获得10
43秒前
ttt完成签到 ,获得积分10
48秒前
乘风破浪完成签到 ,获得积分10
51秒前
nicolaslcq完成签到,获得积分10
1分钟前
卡卡完成签到 ,获得积分10
1分钟前
1分钟前
研友_gnvY5L完成签到 ,获得积分10
1分钟前
小小aa16完成签到,获得积分10
1分钟前
139完成签到 ,获得积分10
1分钟前
zhaozb发布了新的文献求助20
1分钟前
小星星完成签到 ,获得积分10
1分钟前
耳朵完成签到 ,获得积分10
1分钟前
凶残小白兔完成签到 ,获得积分10
1分钟前
wsl完成签到 ,获得积分10
1分钟前
nani026完成签到,获得积分10
1分钟前
酸化土壤改良应助zhaozb采纳,获得10
1分钟前
认真的蘑菇完成签到 ,获得积分10
2分钟前
小蘑菇应助科研通管家采纳,获得10
2分钟前
杨天天完成签到 ,获得积分10
2分钟前
t铁核桃1985完成签到 ,获得积分10
2分钟前
huang’发布了新的文献求助10
2分钟前
spring完成签到 ,获得积分10
2分钟前
huang’完成签到,获得积分10
3分钟前
ww发布了新的文献求助10
3分钟前
gu完成签到 ,获得积分10
3分钟前
wwwwwl完成签到 ,获得积分10
3分钟前
linakg完成签到 ,获得积分10
3分钟前
Emperor完成签到 ,获得积分10
3分钟前
YANGLan完成签到,获得积分10
3分钟前
霁昕完成签到 ,获得积分10
4分钟前
在水一方应助科研通管家采纳,获得10
4分钟前
gj完成签到 ,获得积分10
4分钟前
逢场作戱____完成签到 ,获得积分10
4分钟前
KrisTina完成签到 ,获得积分10
4分钟前
jackone完成签到,获得积分10
4分钟前
Lesterem完成签到 ,获得积分10
4分钟前
高分求助中
Un calendrier babylonien des travaux, des signes et des mois: Séries iqqur îpuš 1036
Sustainable Land Management: Strategies to Cope with the Marginalisation of Agriculture 1000
Corrosion and Oxygen Control 600
Python Programming for Linguistics and Digital Humanities: Applications for Text-Focused Fields 500
Heterocyclic Stilbene and Bibenzyl Derivatives in Liverworts: Distribution, Structures, Total Synthesis and Biological Activity 500
重庆市新能源汽车产业大数据招商指南(两链两图两池两库两平台两清单两报告) 400
Division and square root. Digit-recurrence algorithms and implementations 400
热门求助领域 (近24小时)
化学 材料科学 医学 生物 有机化学 工程类 生物化学 纳米技术 物理 内科学 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 电极 光电子学 量子力学
热门帖子
关注 科研通微信公众号,转发送积分 2546081
求助须知:如何正确求助?哪些是违规求助? 2175672
关于积分的说明 5600244
捐赠科研通 1896383
什么是DOI,文献DOI怎么找? 946268
版权声明 565379
科研通“疑难数据库(出版商)”最低求助积分说明 503557