Phosphorus effects on global grassland productivity and plant diversity: A meta-analysis

IF 3.4 2区环境科学与生态学 Q1 BIODIVERSITY CONSERVATION

Global Ecology and Conservation Pub Date : 2025-09-26 DOI:10.1016/j.gecco.2025.e03871

Lingjie Chen , Esvin Gonzalez , Yin Guo , Xin Yang

{"title":"Phosphorus effects on global grassland productivity and plant diversity: A meta-analysis","authors":"Lingjie Chen , Esvin Gonzalez , Yin Guo , Xin Yang","doi":"10.1016/j.gecco.2025.e03871","DOIUrl":null,"url":null,"abstract":"<div><div>Phosphorus (P) addition can affect ecosystem functions. It plays an important role in the productivity and nutrient cycling of grassland ecosystems. However, the effects of P addition on plant community diversity and productivity remain controversial. We analyzed data from 139 studies to assess the effects of P addition on grassland ecosystems. Our meta-analysis examined how different P addition amounts, grassland types, and P addition durations influence plant communities. P addition increased Aboveground Net Primary Productivity (ANPP) by 13.15 % (P < 0.05) and reduced species richness by 6.47 %. As P addition increased, the ANPP enhancement rose from 6.52 % to 19.23 %, while the negative effect on species richness intensified from −6.42 % to −11.10 %. P addition had a positive effect the ANPP of on arid grassland, which increased 15.96 %. With longer P addition duration, the ANPP increase declined from 12.95 % to 8.11 %, and the reduction in species richness deepened from −6.73 % to −9.76 %. There was a significant negative correlation between ANPP and P addition, but there was no significant correlation between community diversity and P addition. There is a large correlation between species richness and ANPP. This study found that P addition changed community assembly by changing the community allocation mechanism and breaking the resource constraints. Community productivity and diversity were affected by changing the distribution of functional traits and the redistribution mechanism of nutrient resources of dominant species in the community.</div></div>","PeriodicalId":54264,"journal":{"name":"Global Ecology and Conservation","volume":"63 ","pages":"Article e03871"},"PeriodicalIF":3.4000,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Global Ecology and Conservation","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S235198942500472X","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIODIVERSITY CONSERVATION","Score":null,"Total":0}

引用次数: 0

Abstract

Phosphorus (P) addition can affect ecosystem functions. It plays an important role in the productivity and nutrient cycling of grassland ecosystems. However, the effects of P addition on plant community diversity and productivity remain controversial. We analyzed data from 139 studies to assess the effects of P addition on grassland ecosystems. Our meta-analysis examined how different P addition amounts, grassland types, and P addition durations influence plant communities. P addition increased Aboveground Net Primary Productivity (ANPP) by 13.15 % (P < 0.05) and reduced species richness by 6.47 %. As P addition increased, the ANPP enhancement rose from 6.52 % to 19.23 %, while the negative effect on species richness intensified from −6.42 % to −11.10 %. P addition had a positive effect the ANPP of on arid grassland, which increased 15.96 %. With longer P addition duration, the ANPP increase declined from 12.95 % to 8.11 %, and the reduction in species richness deepened from −6.73 % to −9.76 %. There was a significant negative correlation between ANPP and P addition, but there was no significant correlation between community diversity and P addition. There is a large correlation between species richness and ANPP. This study found that P addition changed community assembly by changing the community allocation mechanism and breaking the resource constraints. Community productivity and diversity were affected by changing the distribution of functional traits and the redistribution mechanism of nutrient resources of dominant species in the community.

查看原文本刊更多论文

磷对全球草地生产力和植物多样性影响的meta分析

磷的添加会影响生态系统功能。它在草地生态系统的生产力和养分循环中起着重要作用。然而，施磷对植物群落多样性和生产力的影响仍存在争议。我们分析了139项研究的数据，以评估磷添加对草地生态系统的影响。我们的荟萃分析考察了不同磷添加量、草地类型和磷添加持续时间对植物群落的影响。添加磷使地上净初级生产力（ANPP）提高了13.15 % (P <； 0.05)，物种丰富度降低了6.47 %。随着磷添加量的增加，ANPP的增强幅度从6.52 %增加到19.23 %，而对物种丰富度的负面影响从- 6.42 %增加到- 11.10 %。添加磷对干旱草地的ANPP有正向影响，提高了15.96 %。随着P添加时间的延长，ANPP的增幅从12.95 %下降到8.11 %，物种丰富度的降幅从−6.73 %下降到−9.76 %。ANPP与磷添加量呈显著负相关，群落多样性与磷添加量无显著相关。物种丰富度与ANPP之间存在较大的相关性。研究发现，P的添加通过改变群落配置机制和打破资源约束来改变群落聚集。群落功能性状的分布和优势种养分资源的再分配机制的变化影响着群落生产力和多样性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Global Ecology and Conservation Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics

CiteScore

8.10

自引率

5.00%

发文量

346

审稿时长

83 days

期刊介绍： Global Ecology and Conservation is a peer-reviewed, open-access journal covering all sub-disciplines of ecological and conservation science: from theory to practice, from molecules to ecosystems, from regional to global. The fields covered include: organismal, population, community, and ecosystem ecology; physiological, evolutionary, and behavioral ecology; and conservation science.