Dataset Information

Responses of terrestrial ecosystem productivity and community structure to intra-annual precipitation patterns: A meta-analysis.

ABSTRACT:

Introduction

The productivity and community structures of terrestrial ecosystems are regulated by total precipitation amount and intra-annual precipitation patterns, which have been altered by climate change. The timing and sizes of precipitation events are the two key factors of intra-annual precipitation patterns and potentially drive ecosystem function by influencing soil moisture. However, the generalizable patterns of how intra-annual precipitation patterns affect the productivity and community structures of ecosystems remain unclear.

Methods

We synthesized 633 observations from 17 studies and conducted a global meta-analysis to investigate the influences of intra-annual precipitation patterns on the productivity and community structures of terrestrial ecosystems. By classifying intra-annual precipitation patterns, we also assess the importance of the magnitude and timing of precipitation events on plant productivity.

Results

Our results showed that the intra-annual precipitation patterns decreased diversity by 6.3% but increased belowground net primary productivity, richness, and relative abundance by 16.8%, 10.5%, and 45.0%, respectively. Notably, we found that the timing uniformity of precipitation events was more important for plant productivity, while the plant community structure benefited from the increased precipitation variability. In addition, the relationship between plant productivity and community structure and soil moisture dynamic response was more consistent with the nonlinear model.

Comclusions

The patterns of the responses of plant productivity and community structure to altered intra-annual precipitation patterns were revealed, and the importance of the timing uniformity of precipitation events to the functioning of production systems was highlighted, which is essential to enhancing understanding of the structures and functions of ecosystems subjected to altered precipitation patterns and predicting their changes.

SUBMITTER: Xie M

PROVIDER: S-EPMC9868929 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Responses of terrestrial ecosystem productivity and community structure to intra-annual precipitation patterns: A meta-analysis.

Xie Mingyu M Li Lei L Liu Bo B Liu Yalan Y Wan Qian Q

Frontiers in plant science 20230109

<h4>Introduction</h4>The productivity and community structures of terrestrial ecosystems are regulated by total precipitation amount and intra-annual precipitation patterns, which have been altered by climate change. The timing and sizes of precipitation events are the two key factors of intra-annual precipitation patterns and potentially drive ecosystem function by influencing soil moisture. However, the generalizable patterns of how intra-annual precipitation patterns affect the productivity a ...[more]

PMID: 36699850

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Dataset Information

Responses of terrestrial ecosystem productivity and community structure to intra-annual precipitation patterns: A meta-analysis.

Introduction

Methods

Results

Comclusions

Publications

Responses of terrestrial ecosystem productivity and community structure to intra-annual precipitation patterns: A meta-analysis.

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