Tools
Sorted by:
Try your query at:
 |
 |
 |
 |
 |
 |
Results 1 - 10
of
220
Decomposer biomass in the rhizosphere to assess rhizodeposition
- Oikos
, 2007
"... Quantification of the organic carbon released from plant roots is a challenge. These compounds of rhizodeposition are quickly transformed into CO2 and eventually bacterial biomass to be consumed by bacterivores (protozoa and nematodes). Microbes stimulate rhizodeposition several-fold so assays under ..."
Abstract
-
Cited by 5 (0 self)
- Add to MetaCart
barley with a 2 week leaf aphid attack and found that biomass of bacterivores but not bacteria in the rhizosphere correlated with plant-induced respiration activity belowground. This indicated top-down control of the bacteria. Moreover, at increasing density of aphids, bacterivore biomass
respiration
, 2009
"... The significance of phloem transport for the speed with which canopy photosynthesis and belowground ..."
Abstract
- Add to MetaCart
The significance of phloem transport for the speed with which canopy photosynthesis and belowground
Temperature sensitivity of soil carbon decomposition and feedbacks to climate change,
- Nature,
, 2006
"... Significantly more carbon is stored in the world's soils-including peatlands, wetlands and permafrost-than is present in the atmosphere. Disagreement exists, however, regarding the effects of climate change on global soil carbon stocks. If carbon stored belowground is transferred to the atmosp ..."
Abstract
-
Cited by 189 (4 self)
- Add to MetaCart
to the atmosphere by a warming-induced acceleration of its decomposition, a positive feedback to climate change would occur. Conversely, if increases of plant-derived carbon inputs to soils exceed increases in decomposition, the feedback would be negative. Despite much research, a consensus has not yet emerged
Name:...................................... Date:....................................
, 2010
"... belowground functioning of tropical biomes ..."
Belowground carbon allocation in forests estimated from litterfall and IRGA-based
, 2002
"... soil respiration measurements ..."
Update on Aboveground and Belowground Plant Defenses Interactions between Arthropod-Induced Aboveground and Belowground Defenses in Plants1
"... Plants can be attacked by arthropods both above and below ground. The ensuing systemic defense response of the plant can affect even the most distant tissues. Both primary and secondary metabolic profiles of shoots can be altered upon root herbivory and vice versa (Gange and Brown, 1989; Bezemer et ..."
Abstract
- Add to MetaCart
into the mechanisms governing plant stress responses might provide several starting points to explore the physiological basis of plant-mediated aboveground and belowground interactions. Priming (Ryals et al.,
Communitywide effects of belowground rhizobia on aboveground arthropods
, 2011
"... Abstract. 1. Plants take nutrients for their growth and reproduction from not only soil but also symbiotic microbes in the rhizosphere, and therefore below-ground microbes may indirectly influence the above-ground arthropod community through changes in the quality and quantity of plants. 2. Rhizobi ..."
Abstract
- Add to MetaCart
Abstract. 1. Plants take nutrients for their growth and reproduction from not only soil but also symbiotic microbes in the rhizosphere, and therefore below-ground microbes may indirectly influence the above-ground arthropod community through changes in the quality and quantity of plants. 2
Carbon partitioning and below-ground translocation by Lolium perenne. Soil Biol Biochem 33(1): 61–74
, 2001
"... Carbon (C) balance, rhizodeposition and root respiration during development of Lolium perenne were studied on a loamy Gleyic Cambisol by 14CO2 pulse labeling of shoots in a two-compartment chamber under controlled laboratory conditions. The losses from shoot respiration were about 36 % of the total ..."
Abstract
-
Cited by 32 (7 self)
- Add to MetaCart
with plant development from 2.7 to 11 % of the total 14C assimilated by plants. A model approach used for the partitioning of rhizosphere respiration showed that measured root respiration was between 1.4 and 3.5 % of assimilated 14C, while microbial respiration of easily available rhizodeposits and dead root
Alteration of belowground carbon dynamics by nitrogen addition
"... have had substantial effects on ecosystem functioning. We document changes in the belowground C cycle near ponderosa pine trees experiencing experimental nitrogen (N) addition (50 and 150 kg N ha1 a1 as slow release urea since 1997) at two end-member sites along a pollution gradient in the San Berna ..."
Abstract
- Add to MetaCart
have had substantial effects on ecosystem functioning. We document changes in the belowground C cycle near ponderosa pine trees experiencing experimental nitrogen (N) addition (50 and 150 kg N ha1 a1 as slow release urea since 1997) at two end-member sites along a pollution gradient in the San
Interpreting, measuring, and modeling soil respiration
- Biogeochemistry
, 2005
"... Abstract. This paper reviews the role of soil respiration in determining ecosystem carbon balance, and the conceptual basis for measuring and modeling soil respiration. We developed it to provide background and context for this special issue on soil respiration and to synthesize the presentations an ..."
Abstract
-
Cited by 41 (2 self)
- Add to MetaCart
and discussions at the workshop. Soil respiration is the largest component of ecosystem respiration. Because autotrophic and heterotrophic activity belowground is controlled by substrate availability, soil respiration is strongly linked to plant metabolism, photosynthesis and litterfall. This link dominates both
Results 1 - 10
of
220
