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Effects of Nitrogen Addition on the Drought Susceptibility of the Leymus chinensis Meadow Ecosystem Vary with Drought Duration

Overview of attention for article published in Frontiers in Plant Science, February 2018
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Title
Effects of Nitrogen Addition on the Drought Susceptibility of the Leymus chinensis Meadow Ecosystem Vary with Drought Duration
Published in
Frontiers in Plant Science, February 2018
DOI 10.3389/fpls.2018.00254
Pubmed ID
Authors

Baoku Shi, Yunbo Wang, Bo Meng, Shangzhi Zhong, Wei Sun

Abstract

It is not clear yet how extreme drought and nitrogen (N) deposition influence grassland ecosystem functions when they are considered together, especially in complex field conditions. To explore the response of theLeymus chinensismeadow ecosystem to manipulated extreme drought (45 days), N addition and their interaction, we measured leaf photosynthetic characteristics, aboveground phytomass on the community level and ecosystem C exchange in different treatments at the middle and the end of the drought period. The extreme drought treatment decreased the leaf net CO2assimilation rate and ecosystem C exchange [gross ecosystem productivity (GEP), ecosystem respiration and net ecosystem CO2exchange]. In contrast, the N addition treatment increased aboveground phytomass, GEP and net ecosystem CO2exchange. The effects of N addition on the drought susceptibility of theL. chinensismeadow ecosystem varied with drought severity. The N addition treatment alleviated drought-induced suppression of CO2exchange at the leaf and ecosystem levels in the middle of the drought period, whereas it exacerbated drought-induced suppression of the CO2exchange and aboveground phytomass on the community level at the end of the drought period. Given that dominance byL. chinensisis a characteristic of the studied ecosystem, knowledge of the traits ofL. chinensisand its response to multiple global change drivers will be crucial for predicting future ecosystem functions. Furthermore, increasing N deposition may affect the response of theL. chinensismeadow ecosystem to further droughts by increasing carbon allocation to roots and therefore root-shoot ratios.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 31 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 31 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 6 19%
Researcher 5 16%
Student > Doctoral Student 4 13%
Other 2 6%
Professor > Associate Professor 2 6%
Other 4 13%
Unknown 8 26%
Readers by discipline Count As %
Agricultural and Biological Sciences 10 32%
Environmental Science 6 19%
Business, Management and Accounting 1 3%
Biochemistry, Genetics and Molecular Biology 1 3%
Earth and Planetary Sciences 1 3%
Other 1 3%
Unknown 11 35%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 March 2018.
All research outputs
#18,590,133
of 23,026,672 outputs
Outputs from Frontiers in Plant Science
#14,015
of 20,560 outputs
Outputs of similar age
#256,661
of 330,057 outputs
Outputs of similar age from Frontiers in Plant Science
#382
of 472 outputs
Altmetric has tracked 23,026,672 research outputs across all sources so far. This one is in the 11th percentile – i.e., 11% of other outputs scored the same or lower than it.
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We're also able to compare this research output to 472 others from the same source and published within six weeks on either side of this one. This one is in the 11th percentile – i.e., 11% of its contemporaries scored the same or lower than it.