scholarly journals Terrestrial ecosystem responses to global change: A research strategy

1998 ◽  
Author(s):  
Keyword(s):  
Global Change ◽  
Terrestrial Ecosystem ◽  
Research Strategy ◽  
Ecosystem Responses

Mycorrhizal fungi mediation of terrestrial ecosystem responses to global change: mini-review

2014 ◽  
Vol 10 ◽  
pp. 3-19 ◽  
Author(s):  
Jacqueline E. Mohan ◽  
Charles C. Cowden ◽  
Peter Baas ◽  
Anurag Dawadi ◽  
Paul T. Frankson ◽  
...  
Keyword(s):  
Global Change ◽  
Mycorrhizal Fungi ◽  
Terrestrial Ecosystem ◽  
Ecosystem Responses

Soil Ecology

Ecology ◽  
2012 ◽  
Author(s):  
Franciska T. De Vries ◽  
Richard D. Bardgett
Keyword(s):  
Global Change ◽  
New Technologies ◽  
Terrestrial Ecosystem ◽  
Terrestrial Ecosystems ◽  
Soil Ecology ◽  
Biological Interactions ◽  
Soil Biodiversity ◽  
Ecosystem Responses ◽  
Plant Soil

The study of soil ecology has a long tradition. Most of this interest, until relatively recently, has been from an agricultural perspective, but now it is widely accepted that soil ecology is central to the study of terrestrial ecology. Early research in soil ecology was largely descriptive, detailing the abundance of diversity of organisms in soils of different habitats. However, interest in functional soil ecology started in the 1980s with studies of trophic interactions in soil and their importance for nutrient cycles and decomposition. Now, the topic has blossomed, with the help of new technologies that allow the study of soil organisms and their activities in situ, and there is currently widespread recognition that soil ecology is fundamental to our understanding of the functioning of terrestrial ecosystems and their response to global change. Today, the field of soil ecology is dominated by discussions on the use of new molecular tools that enable ecologists to understand what regulates patterns of diversity in soil, the functional role of soil biodiversity and plant-soil interactions, especially those that occur at the root-soil interface, and the role of soil biological communities in regulating ecosystem responses to global change, including the global carbon cycle under climate change. Many challenges still remain in soil ecology, and perhaps the most significant is the need for a stronger theoretical basis for the subject; almost all studies in this area have been carried out from an empirical perspective, and modeling approaches are still in their infancy. As a consequence, our ability to make predictions about the role of soil biological interactions and feedbacks in regulating terrestrial ecosystem processes and their response to global change remains limited.

Impacts of long-term warming and enhanced nitrogen and sulfur deposition on carbon sink potential in a boreal peatland

2021 ◽  
Author(s):  
Tuula Larmola ◽  
Liisa Maanavilja ◽  
Heikki Kiheri ◽  
Mats Nilsson ◽  
Matthias Peichl
Keyword(s):  
Global Change ◽  
Wet Deposition ◽  
Carbon Sink ◽  
Ecosystem Respiration ◽  
N Deposition ◽  
Ecosystem Responses ◽  
Gross Photosynthesis ◽  
Poor Fen ◽  
The Individual

<p>In order to assess peatland carbon sink potential under multiple global change perturbations, we examined the individual and combined effects of long-term warming and enhanced nitrogen (N) and sulfur (S) deposition on ecosystem CO<sub>2 </sub>exchange at one of the longest-running experiments on peatlands, Degerö Stormyr poor fen, Sweden. The site has been treated with NH<sub>4</sub>NO<sub>3</sub> (15 times ambient annual wet deposition), Na<sub>2</sub>SO<sub>4</sub> (6 times ambient annual wet deposition) and elevated temperature (air +3.6 C) for 23 years. Gross photosynthesis, ecosystem respiration and net CO<sub>2</sub> exchange were measured weekly during June-August using chambers. After 23 years, two of the experimental perturbations: N addition and warming individually reduced net CO<sub>2</sub> uptake potential down to 0.3-0.4 fold compared to the control mainly due to lower gross photosynthesis. Under S only treatment ecosystem CO<sub>2</sub> fluxes were largely unaltered. In contrast, the combination of S and N deposition and warming led to a more pronounced effect and close to zero net CO<sub>2</sub> uptake potential or net C source. Our study emphasizes the value of the long-term multifactor experiments in examining the ecosystem responses: simultaneous perturbations can have nonadditive interactions that cannot be predicted based on individual responses and thus, must be studied in combination when evaluating feedback mechanisms to ecosystem C sink potential under global change.</p>

Marine Ecosystem Responses to Cenozoic Global Change

Science ◽  
2013 ◽  
Vol 341 (6145) ◽  
pp. 492-498 ◽  
Author(s):  
R. D. Norris ◽  
S. K. Turner ◽  
P. M. Hull ◽  
A. Ridgwell
Keyword(s):  
Global Change ◽  
Marine Ecosystem ◽  
Ecosystem Responses
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