Human-induced nitrogen–phosphorus imbalances alter natural and managed ecosystems across the globe
Josep Peñuelas,Benjamin Poulter,Jordi Sardans,Philippe Ciais,Marijn van der Velde,Laurent Bopp,Olivier Boucher,Yves Goddéris,Philippe Hinsinger,Joan Llusià,Elise Nardin,Sara Vicca,Michael Obersteiner,Ivan A. Janssens +13 more
TL;DR: It is shown that limited phosphorus and nitrogen availability are likely to jointly reduce future carbon storage by natural ecosystems during this century and if phosphorus fertilizers cannot be made increasingly accessible, the crop yields projections of the Millennium Ecosystem Assessment imply an increase of the nutrient deficit in developing regions.
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Abstract: Bioavailable nitrogen is increasing due to human activity, rapidly outpacing increases in another essential nutrient, phosphorous. Penuelas et al. show that this increasing imbalance between these nutrients is likely to significantly affect life and limit carbon storage in this century.
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Citations
Effects of sowing methods and nitrogen rates on photosynthetic characteristics, yield, and quality of winter wheat
H. Noor,Q. Wang,M.A. Islam,M. Sun,W. Lin,A.X. Ren,Y. Feng,S.B. Yu,N. Fida,S.F. Dong,P.R. Wang,L. Li,Z.X. Wang,R.R. Zhang,Q.L. Zhao,P.C. Ding,Z.Q. Gao +16 more
TL;DR: In this paper, the effects of different sowing methods and nitrogen rates on photosynthetic characteristics of flag leaves, nitrogen translocation, and yield could be an effective strategy to improve the crop yield.
Differential responses of heterotrophic and autotrophic respiration to nitrogen addition and precipitation changes in a Tibetan alpine steppe.
Changbin Li,Yunfeng Peng,Xiuqing Nie,Yuanhe Yang,Lucun Yang,Fei Li,Kai Fang,Yuanming Xiao,Guoying Zhou +8 more
TL;DR: Investigation of the effects of N addition, changes in precipitation, and their interaction on soil respiration and its components in a Tibetan alpine steppe during three consecutive growing seasons found that Rs differed in its response to N addition and precipitation regimes.
Increases in the seaward river flux of nutrients driven by human migration and land-use changes in the tide-influenced delta.
Jing Zhang,Ya Nan Du,Guosen Zhang,Yan Chang,Yingchun Zhou,Zai Feng Zhang,Ying Wu,Jia Wei Chen,An Yu Zhang,Zhuoyi Zhu,Sumei Liu +10 more
TL;DR: Nutrient dynamics in tide-influenced deltas near urban areas should receive increased research and policy attention because knowledge of the seaward fluxes and species ratios of nutrients from land sources is incomplete and can be biased, to the point that assessments of their impacts on adjacent marine environments may be inaccurate and mitigation policies therefore ineffective.
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Differential mechanisms underlying responses of soil bacterial and fungal communities to nitrogen and phosphorus inputs in a subtropical forest.
Yong Li,Dashuan Tian,Jinsong Wang,Shuli Niu,Jing Tian,Denglong Ha,Yuxi Qu,Guangwei Jing,Xiaoming Kang,Bing Song +9 more
TL;DR: It is suggested that the diversity of microbial communities of subtropical forest soil will depend on future scenarios of anthropogenic N deposition and P enrichment, with a particular sensitivity of bacterial community to N addition.
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Role of mycorrhizas and root exudates in plant uptake of soil nutrients (calcium, iron, magnesium, and potassium): has the puzzle been completely solved?
TL;DR: A review of the literature on the role of mycorrhizas and root exudates in plant uptake of key nutrients (N, P, K, Ca, Mg, and Fe) in the context of potential nutrient deficiencies in crop and non-crop terrestrial ecosystems, and identify knowledge gaps for future research to improve nutrient-uptake capacity in food crop plants as mentioned in this paper .
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Ecological Stoichiometry: The Biology of Elements from Molecules to the Biosphere
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