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Latitudinal patterns of terrestrial phosphorus limitation over the globe
Author(s) -
Hou Enqing,
Wen Dazhi,
Jiang Lifen,
Luo Xianzhen,
Kuang Yuanwen,
Lu Xiankai,
Chen Chengrong,
Allen Keanan T.,
He Xianjin,
Huang Xingzhao,
Luo Yiqi
Publication year - 2021
Publication title -
ecology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.852
H-Index - 265
eISSN - 1461-0248
pISSN - 1461-023X
DOI - 10.1111/ele.13761
Subject(s) - tundra , phosphorus , ecology , environmental science , terrestrial ecosystem , edaphic , vegetation (pathology) , grassland , latitude , terrestrial plant , atmospheric sciences , ecosystem , biology , chemistry , geography , geology , soil water , organic chemistry , geodesy , pathology , medicine
Phosphorus limitation on terrestrial plant growth is being incorporated into Earth system models. The global pattern of terrestrial phosphorus limitation, however, remains unstudied. Here, we examined the global‐scale latitudinal pattern of terrestrial phosphorus limitation by analysing a total of 1068 observations of aboveground plant production response to phosphorus additions at 351 forest, grassland or tundra sites that are distributed globally. The observed phosphorus‐addition effect varied greatly (either positive or negative), depending significantly upon fertilisation regime and production measure, but did not change significantly with latitude. In contrast, phosphorus‐addition effect standardised by fertilisation regime and production measure was consistently positive and decreased significantly with latitude. Latitudinal gradient in the standardised phosphorus‐addition effect was explained by several mechanisms involving substrate age, climate, vegetation type, edaphic properties and biochemical machinery. This study suggests that latitudinal pattern of terrestrial phosphorus limitation is jointly shaped by macro‐scale driving forces and the fundamental structure of life.