Effects of wetland plants on denitrification rates: a meta-analysis

被引：87

作者：

Alldred, Mary ^{[1
]}

Baines, Stephen B. ^{[1
]}

机构：

[1] SUNY Stony Brook, Dept Ecol & Evolut, 650 Life Sci Bldg, Stony Brook, NY 11794 USA

来源：

ECOLOGICAL APPLICATIONS | 2016年 / 26卷 / 03期

关键词：

community structure; ecosystem services; functional traits; global change; nitrogen cycle; FUNCTIONAL CLASSIFICATION; POTAMOGETON-PERFOLIATUS; NITROGEN; COMPETITION; LIMITATION; TRAITS; SOIL; NITRIFICATION; TERRESTRIAL; ECOSYSTEMS;

D O I：

10.1890/14-1525

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Human activity is accelerating changes in biotic communities worldwide. Predicting impacts of these changes on ecosystem services such as denitrification, a process that mitigates the consequences of nitrogen pollution, remains one of the most important challenges facing ecologists. Wetlands especially are valued as important sites of denitrification, and wetland plants are expected to have differing effects on denitrification. We present the results of a meta-analysis, conducted on 419 published estimates of denitrification in wetlands dominated by different plant species. Plants increased denitrification rates by 55% on average. This effect varied significantly among communities as defined by the dominant plant species, but surprisingly did not differ substantially among methods for measuring denitrification or among types of wetlands. We conclude that mechanistically linking functional plant traits to denitrification will be key to predicting the role of wetlands in nitrogen mitigation in a changing world.

引用

页码：676 / 685

页数：10

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