scholarly journals Biomass increases attributed to both faster tree growth and altered allometric relationships under long‐term carbon dioxide enrichment at a temperate forest

2020 ◽  
Vol 26 (4) ◽  
pp. 2519-2533 ◽  
Author(s):  
Dohyoung Kim ◽  
David Medvigy ◽  
Chris A. Maier ◽  
Kurt Johnsen ◽  
Sari Palmroth
Keyword(s):  
Carbon Dioxide ◽  
Tree Growth ◽  
Temperate Forest ◽  
Carbon Dioxide Enrichment ◽  
Allometric Relationships

scholarly journals Effects of Long term Exposure to Atmospheric Carbon Dioxide Enrichment on Flowering and Podding in Soybean

10.5109/24418 ◽  
2001 ◽  
Vol 46 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Hiroaki Nakamoto ◽  
Shao-Hui Zheng ◽  
Tadahiko Furuya ◽  
Kaname Tanaka ◽  
Akira Yamazaki ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Atmospheric Carbon Dioxide ◽  
Carbon Dioxide Enrichment ◽  
Atmospheric Carbon

The 2018 drought and its consequences: Investigating the resilience of different tree species based on comprehensive long-term monitoring of forest hydrology

2020 ◽  
Author(s):  
Theresa Blume ◽  
Daniel Balanzategui ◽  
Lisa Schneider ◽  
Daniel Rasche ◽  
Markus Morgner ◽  
...  
Keyword(s):  
Soil Moisture ◽  
High Resolution ◽  
Water Deficit ◽  
Tree Growth ◽  
Tree Species ◽  
Temperate Forest ◽  
Subsurface Water ◽  
Forest Stands ◽  
Northeastern Germany

<p>Many forests in Central Europe experienced unprecedented drought conditions in 2018. The exceptionally long dry period, lasting from early-summer 2018 and into the winter, was followed by another dry summer with record-breaking temperatures.   Ecohydrological consequences of extended droughts for these temperate forest systems are difficult to anticipate, and investigating the resilience of forest hydrological systems requires comprehensive and systematic long-term observations.</p><p>Monitoring at the TERENO-NE temperate forest observatory in northeastern Germany includes input characterization (throughfall and stemflow), high-resolution soil moisture observations in 14 different forest stands down to a depth of 2 m below the soil surface, shallow and deep groundwater observations, sap flow, tree water deficit and high-resolution tree growth measurements since 2012. The investigated forest stands cover the three tree species pine, oak and beech in both pure and mixed stands. This is complemented by terrestrial gravimetric measurements of total water storage changes. Steep hillslope transects allow us to investigate the impact of presence or absence of groundwater availability on tree water uptake and growth.</p><p>We find that after the unprecedented drought in 2018, which already had pronounced ecohydrological effects, the rainfall amounts over the winter 2018/19 were insufficient to refill the subsurface water storages. Dry conditions altered the growth phenology of each monitored tree species, while tree-water deficit and tree growth were negatively impacted in both years, but to varying extent. Soil moisture storage and dynamics are strongly affected and the drought caused a long-term memory effect.</p>

Increased belowground biomass and soil CO2fluxes after a decade of carbon dioxide enrichment in a warm-temperate forest

Ecology ◽  
2009 ◽  
Vol 90 (12) ◽  
pp. 3352-3366 ◽  
Author(s):  
Robert B. Jackson ◽  
Charles W. Cook ◽  
Jeffrey S. Pippen ◽  
Sheila M. Palmer
Keyword(s):  
Carbon Dioxide ◽  
Temperate Forest ◽  
Belowground Biomass ◽  
Carbon Dioxide Enrichment ◽  
Warm Temperate Forest ◽  
Warm Temperate

Long-term atmospheric carbon dioxide enrichment decreases soil phosphorus availability in a grazed temperate pasture

Geoderma ◽  
2020 ◽  
Vol 378 ◽  
pp. 114621
Author(s):  
Driss Touhami ◽  
Richard W. McDowell ◽  
Leo M. Condron ◽  
Mark Lieffering ◽  
Paul C.D. Newton
Keyword(s):  
Carbon Dioxide ◽  
Atmospheric Carbon Dioxide ◽  
Soil Phosphorus ◽  
Phosphorus Availability ◽  
Carbon Dioxide Enrichment ◽  
Atmospheric Carbon

Impact of Dursban and Abate on Microbial Numbers and Some Chemical Properties of Standing Ponds

1975 ◽  
Vol 10 (1) ◽  
pp. 33-41 ◽  
Author(s):  
J. Butcher ◽  
M. Boyer ◽  
CD. Fowle
Keyword(s):  
Carbon Dioxide ◽  
Active Ingredient ◽  
Algal Blooms ◽  
Chemical Properties ◽  
Total Carbon ◽  
Dissolved Carbon ◽  
Photosynthetic Productivity ◽  
Dissolved Carbon Dioxide ◽  
Microbial Numbers

Abstract Eleven small ponds, lined with polyethylene, were used to assess the consequences of applications of *DursbanR at 0.004, 0.030, 0.100 and 1.000 ppm and AbateR at 0.025 and 0.100 ppm active ingredient. The treated ponds showed a more pronounced long-term increase in pH and dissolved oxygen and decreasing total and dissolved carbon dioxide in comparison with untreated ponds. Algal blooms were of longer duration in treated ponds than in controls. Total photosynthetic productivity was higher in treated ponds but bacterial numbers did not change significantly. Photosynthetic productivity was estimated by following the changes in total carbon dioxide.

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