Rangeland application of biochar and rotational grazing interact to influence soil and plant nutrient dynamics

Geoderma ◽  
2022 ◽  
Vol 408 ◽  
pp. 115572
Author(s):  
Si Gao ◽  
Thomas H. DeLuca
Keyword(s):  
Nutrient Dynamics ◽  
Plant Nutrient ◽  
Rotational Grazing

scholarly journals Resilience: nitrogen limitation, mycorrhiza and long-term palaeoecological plant–nutrient dynamics

2020 ◽  
Vol 16 (1) ◽  
pp. 20190441 ◽  
Author(s):  
Michael B. Bonsall ◽  
Cynthia A. Froyd ◽  
Elizabeth S. Jeffers
Keyword(s):  
Nutrient Dynamics ◽  
Ecosystem Dynamics ◽  
Ecological Resilience ◽  
Mathematical Framework ◽  
Plant Nutrient ◽  
Available Nitrogen ◽  
Plant Soil ◽  
Mycorrhizal Associations ◽  
Plant Plant

Ecosystem dynamics are driven by both biotic and abiotic processes, and perturbations can push ecosystems into novel dynamical regimes. Plant–plant, plant–soil and mycorrhizal associations all affect plant ecosystem dynamics; however, the direction and magnitude of these effects vary by context and their contribution to ecosystem resilience over long time periods remains unknown. Here, using a mathematical framework, we investigate the effects of plant feedbacks and mycorrhiza on plant–nutrient interactions. We show evidence for strong nutrient controlled feedbacks, moderation by mycorrhiza and influence on ecological resilience. We use this model to investigate the resilience of a longitudinal palaeoecological birch– δ 15 N interaction to plant–soil feedbacks and mycorrhizal associations. The birch– δ 15 N system demonstrated high levels of resilience. Mycorrhiza were predicted to increase resilience by supporting plant–nitrogen uptake and immobilizing excess nitrogen; in contrast, long-term enrichment in available nitrogen by plant–soil feedbacks is expected to decrease ecological resilience.

Accumulation and release of plant nutrients in decomposing Scots pine needle litter. Long-term decomposition in a Scots pine forest II

1982 ◽  
Vol 60 (8) ◽  
pp. 1561-1568 ◽  
Author(s):  
Håkan Staaf ◽  
Björn Berg
Keyword(s):  
Weight Loss ◽  
Scots Pine ◽  
Nutrient Dynamics ◽  
Pine Forest ◽  
Plant Nutrient ◽  
Pine Needle ◽  
Needle Litter ◽  
Scots Pine Forest ◽  
Net Release

Plant nutrient dynamics in decomposing needle litter were measured during a 5-year period in a Scots pine forest in central Sweden. As seen over the whole 5-year period, the nutrients were retained (to a litter weight loss of about 75%) in the order Mn < Ca < K < Mg < S < N < P. During the first 1.5 years there was a net increase of N and P whereafter a net release took place. A similar but less pronounced development could be seen for S, whereas Ca, K, Mn, and Mg were released from the start of the incubation. It is suggested that P was the most limiting element for microbial activity during this first phase. There appeared to be only little initial leaching from the litter and the different behaviours of the elements could largely be explained by their concentration in litter in relation to the needs of microorganisms and to their solubility. K and Mg were the elements that were released at rates most similar to organic matter weight loss.

scholarly journals Growth of pioneer beach plants is strongly driven by buried macroalgal wrack, whereas macroinvertebrates affect plant nutrient dynamics

2019 ◽  
Vol 514-515 ◽  
pp. 87-94 ◽  
Author(s):  
E.M. van Egmond ◽  
P.M. van Bodegom ◽  
J.R. van Hal ◽  
R.S.P. van Logtestijn ◽  
R.A. Broekman ◽  
...  
Keyword(s):  
Nutrient Dynamics ◽  
Plant Nutrient

An invasive tree fern alters soil and plant nutrient dynamics in Hawaii

2012 ◽  
Vol 15 (2) ◽  
pp. 355-370 ◽  
Author(s):  
Marian M. Chau ◽  
Lawrence R. Walker ◽  
Klaus Mehltreter
Keyword(s):  
Nutrient Dynamics ◽  
Plant Nutrient ◽  
Tree Fern ◽  
Invasive Tree

Plant Nutrient Uptake and Soil Nutrient Dynamics under Full and Limited Irrigation and Rainfed Maize Production

2013 ◽  
Vol 105 (2) ◽  
pp. 527-538 ◽  
Author(s):  
K. Djaman ◽  
S. Irmak ◽  
D. L. Martin ◽  
R. B. Ferguson ◽  
M. L. Bernards
Keyword(s):  
Nutrient Uptake ◽  
Nutrient Dynamics ◽  
Soil Nutrient ◽  
Plant Nutrient ◽  
Maize Production ◽  
Plant Nutrient Uptake
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