scholarly journals Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands

Metabolites ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 44 ◽  
Author(s):  
Albert Gargallo-Garriga ◽  
Marta Ayala-Roque ◽  
Jordi Sardans ◽  
Mireia Bartrons ◽  
Victor Granda ◽  
...  
Keyword(s):  
Soil Warming

Use of alternative energy sources in protected agriculture

1982 ◽  
Vol 11 (1) ◽  
pp. 16-20 ◽  
Author(s):  
D. Pasternak ◽  
E. Rappeport
Keyword(s):  
Alternative Energy ◽  
Heat Storage ◽  
Waste Heat ◽  
Space Heating ◽  
Energy Sources ◽  
Soil Warming ◽  
Greenhouse Soil ◽  
Geothermal Waters ◽  
Water Curtain ◽  
Alternative Energy Sources

Low temperature energy sources for protected cropping include geothermal waters, waste heat from Industry, and trapped sunshine; application depends on the recovery of heat from circulating warmed water, either via the soil in which the plants are growing or via the air in the greenhouse. Soil warming pipes and ‘water-curtain’ systems of space-heating have shown promise, but heat storage, either for short periods or longer, remains a problem common to all such schemes.

Short-term response of soil microorganisms to biochar addition in a temperate agroecosystem under soil warming

2016 ◽  
Vol 233 ◽  
pp. 308-317 ◽  
Author(s):  
Chris Bamminger ◽  
Christian Poll ◽  
Christina Sixt ◽  
Petra Högy ◽  
Dominik Wüst ◽  
...  
Keyword(s):  
Soil Microorganisms ◽  
Soil Warming ◽  
Short Term ◽  
Term Response

Warming affects seasonal dynamics of microorganisms and reduces the N storage capacity of soil microbes in winter

2021 ◽  
Author(s):  
Philipp Gündler ◽  
Alberto Canarini ◽  
Sara Marañón Jiménez ◽  
Gunnhildur Gunnarsdóttir ◽  
Páll Sigurðsson ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Growth Rates ◽  
Seasonal Dynamics ◽  
Soil Microbes ◽  
Storage Capacity ◽  
Ambient Conditions ◽  
Soil Warming ◽  
Carbon Use Efficiency ◽  
Use Efficiency ◽  
C And N

<p>Seasonality of soil microorganisms plays a critical role in terrestrial carbon (C) and nitrogen (N) cycling. The asynchrony of immobilization by microbes and uptake by plants may be important for N retention during winter, when plants are inactive. Meanwhile, the known warming effects on soil microbes (decreasing biomass and increasing growth rates) may affect microbial seasonal dynamics and nutrient retention during winter.</p><p>We sampled soils from a geothermal warming site in Iceland (www.forhot.is) which includes three in situ warming levels (ambient, +3 °C, +6 °C). We harvested soil samples at 9 time points over one year and measured the seasonal variation in microbial biomass carbon (Cmic) and nitrogen (Nmic) and microbial physiology (growth and carbon use efficiency) by an <sup>18</sup>O-labelling technique.</p><p>We observed that Cmic and Nmic peaked in winter, followed by a decline in spring and summer. In contrast growth and respiration rates were higher in summer than winter. The observed biomass peak at lower growth rates, suggests that microbial death rates must have declined even more than growth rates. Soil warming increased biomass-specific microbial activity (i.e., growth, respiration, and turnover rates per unit of microbial biomass), prolonging the period of higher microbial activity found in summer into autumn and winter. Microbial carbon use efficiency was unaltered by soil warming. Throughout the seasons, warming reduced Cmic and Nmic, albeit with a stronger effect in winter than summer and restrained winter biomass accumulation by up to 78% compared to ambient conditions. We estimated a reduced microbial winter N storage capacity by 45.5 and 94.6 kg ha<sup>-1</sup> at +3 °C and +6 °C warming respectively compared to ambient conditions. This reduction represents 1.57% and 3.26% of total soil N stocks, that could potentially be lost per year from these soils.</p><p>Our results clearly demonstrate that soil warming strongly decreases microbial C and N immobilization when plants are inactive, potentially leading to higher losses of C and N from warmed soils over winter. These results have important implications as increased N losses may restrict increased plant growth in a future climate.</p>

Boreal forest biomass accumulation is not increased by two decades of soil warming

2018 ◽  
Vol 9 (1) ◽  
pp. 49-52 ◽  
Author(s):  
Hyungwoo Lim ◽  
Ram Oren ◽  
Torgny Näsholm ◽  
Monika Strömgren ◽  
Tomas Lundmark ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Forest Biomass ◽  
Biomass Accumulation ◽  
Soil Warming

Soil warming opens the nitrogen cycle at the alpine treeline

2016 ◽  
Vol 23 (1) ◽  
pp. 421-434 ◽  
Author(s):  
Melissa A. Dawes ◽  
Patrick Schleppi ◽  
Stephan Hättenschwiler ◽  
Christian Rixen ◽  
Frank Hagedorn
Keyword(s):  
Nitrogen Cycle ◽  
Soil Warming ◽  
Alpine Treeline

Effects of Soil Warming on Carbon and Nitrogen Cycling

2000 ◽  
pp. 357-381 ◽  
Author(s):  
Lindsey E. Rustad ◽  
Jerry M. Melillo ◽  
Myron J. Mitchell ◽  
Ivan J. Fernandez ◽  
Paul A. Steudler ◽  
...  
Keyword(s):  
Nitrogen Cycling ◽  
Soil Warming ◽  
Carbon And Nitrogen ◽  
Carbon And Nitrogen Cycling

The effects of soil warming on plant recruitment

1996 ◽  
Vol 182 (2) ◽  
pp. 339-343 ◽  
Author(s):  
Lindsey J. Thompson ◽  
Shahid Naeem
Keyword(s):  
Plant Recruitment ◽  
Soil Warming
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