Nitrogen enrichment buffers phosphorus limitation by mobilizing mineral‐bound soil phosphorus in grasslands

Ecology ◽  
2021 ◽  
Author(s):  
Ruzhen Wang ◽  
Junjie Yang ◽  
Heyong Liu ◽  
Jordi Sardans ◽  
Yunhai Zhang ◽  
...  
Keyword(s):  
Soil Phosphorus ◽  
Phosphorus Limitation ◽  
Nitrogen Enrichment

Nitrogen enrichment alters plant N: P stoichiometry and intensifies phosphorus limitation in a steppe ecosystem

2017 ◽  
Vol 134 ◽  
pp. 21-32 ◽  
Author(s):  
Shuxia Zhan ◽  
Yang Wang ◽  
Zhicheng Zhu ◽  
Wenhuai Li ◽  
Yongfei Bai
Keyword(s):  
Phosphorus Limitation ◽  
Nitrogen Enrichment ◽  
Steppe Ecosystem

Plant phosphorus use and acquisition strategies in the Amazon rainforest with relevance to vegetation models

2020 ◽  
Author(s):  
Tatiana Reichert ◽  
Anja Rammig ◽  
Carlos A. Quesada ◽  
Lucia Fuchslueger ◽  
Laynara F. Lugli ◽  
...  
Keyword(s):  
Carbon Sink ◽  
Global Climate ◽  
Soil Phosphorus ◽  
Essential Element ◽  
Phosphorus Limitation ◽  
Amazon Rainforest ◽  
Mycorrhizal Symbiosis ◽  
Acquisition Strategies ◽  
The Future ◽  
Vegetation Models

<p>The Amazon rainforest is the biggest tropical rainforest in the world and provides significant global climate regulation services. However, the future of the Amazon rainforest carbon sink under elevated CO<sub>2</sub> is uncertain. The potential fertilization effect of elevated CO<sub>2</sub> on the Amazon rainforest carbon sink may be constrained by phosphorus availability. Phosphorus is an essential element involved in all major plant processes and is considered to be the primary limiting nutrient in the Amazon rainforest. To cope with phosphorus limitation, plants have developed different strategies to increase the use efficiency, uptake, and availability of phosphorus. Vegetation models have identified phosphorus use and acquisition strategies as crucial to the projections of the future of the Amazon rainforest. Although some of the strategies are explicitly or implicitly represented in vegetation models, the mechanistic representations diverge due to the lack of empirical knowledge. Here, we synthesized the current understanding of the main strategies and how they may play out in the Amazon rainforest, namely, root phosphorus foraging, arbuscular mycorrhizal symbiosis, phosphatase and organic acids exudation, and leaf phosphorus resorption. We focus on mechanisms, drivers, and plasticity along soil phosphorus gradients of the named strategies, aiming to inform models and highlight important knowledge gaps, offering an opportunity to bring modeling and experimental research together.</p>

Chronic Nitrogen Enrichment at the Watershed Scale Does Not Enhance Microbial Phosphorus Limitation

Ecosystems ◽  
2017 ◽  
Vol 21 (1) ◽  
pp. 178-189 ◽  
Author(s):  
Corianne Tatariw ◽  
Jean D. MacRae ◽  
Ivan J. Fernandez ◽  
Marie-Cécile Gruselle ◽  
Cayce J. Salvino ◽  
...  
Keyword(s):  
Phosphorus Limitation ◽  
Nitrogen Enrichment ◽  
Watershed Scale

Does a Trend in Declining Stem Density of Lepidium latifolium Indicate a Phosphorus Limitation? A Case Study

2014 ◽  
Vol 7 (3) ◽  
pp. 526-531 ◽  
Author(s):  
Robert R. Blank ◽  
Tye Morgan
Keyword(s):  
Soil Phosphorus ◽  
Soil Surface ◽  
Phosphorus Limitation ◽  
Phosphorus Availability ◽  
Western United States ◽  
Stem Density ◽  
Soil Horizons ◽  
Lepidium Latifolium

AbstractLepidium latifolium (perennial pepperweed) is a weedy alien crucifer that has invaded wetlands throughout the western United States. We monitored L. latifolium invasion of an Elytrigia elongata (tall wheatgrass) community at the Honey Lake Wildlife Refuge in northeastern California. In 1993, a 40-m2 plot was delineated, at which time only two single plants of L. latifolium were present. Beginning in 1994, L. latifolium stem density was measured yearly until 2011. From 1994 through 2000, the density of L. latifolium increased to greater than 120 stems m−2. At its height of stem density and stature between 1998 and 2000, it appeared that E. elongata had been extirpated. From 2001 through 2006, stem density and plant stature of L. latifolium declined, but there were still areas of the plot where stem density exceeded 60 stems m−2. From 2007 through 2009, stem density decreased considerably and averaged less than 30 stems m−2 and a healthy recovery of E. elongata occurred. In the years 2010 and especially 2011, stem density increased, but individual plants were small in stature. Soil bicarbonate-extractable phosphorus data suggest that phosphorus availability may be crucial to the invasiveness of L. latifolium. Long-term biogeochemical cycling by L. latifolium may reduce soil phosphorus availability in deeper soil horizons and enrich availability in the soil surface, which alters the competitive relationship between L. latifolium and E. elongata.

scholarly journals Nitrogen enrichment alters nutrient resorption and exacerbates phosphorus limitation in the desert shrubArtemisia ordosica

2018 ◽  
Vol 8 (20) ◽  
pp. 9998-10007 ◽  
Author(s):  
Jing Zheng ◽  
Weiwei She ◽  
Yuqing Zhang ◽  
Yuxuan Bai ◽  
Shugao Qin ◽  
...  
Keyword(s):  
Phosphorus Limitation ◽  
Nutrient Resorption ◽  
Nitrogen Enrichment

Ecophysiological linkage of nitrogen enrichment to heavily silicified diatoms in winter

2018 ◽  
Vol 604 ◽  
pp. 51-63 ◽  
Author(s):  
D Liu ◽  
PM Glibert
Keyword(s):  
Nitrogen Enrichment

Improved Plant Diversity as a Strategy to Increase Available Soil Phosphorus

2019 ◽  
Vol 103 (1) ◽  
pp. 43-45 ◽  
Author(s):  
Carlos Crusciol ◽  
João Rigon ◽  
Juliano Calonego ◽  
Rogério Soratto
Keyword(s):  
Crop Yields ◽  
Soil Phosphorus ◽  
Cropping System ◽  
P Availability ◽  
P Fractions ◽  
Crop Species ◽  
Soil P ◽  
Residue Decomposition ◽  
Available Soil Phosphorus ◽  
Crop Residue Decomposition

Some crop species could be used inside a cropping system as part of a strategy to increase soil P availability due to their capacity to recycle P and shift the equilibrium between soil P fractions to benefit the main crop. The release of P by crop residue decomposition, and mobilization and uptake of otherwise recalcitrant P are important mechanisms capable of increasing P availability and crop yields.

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