Stores carbon in soil and
plant biomass by building organic matter, encouraging agro-forestry and forbidding the clearance of primary ecosystems.
(263) Biodegradable is defined in the standard as «capable of microbial decomposition within 24 months in soil (with the exception of
plant biomass), one month in aerated water, two months in anaerobic water, with minimal impact on the environment» (see 3.10 in CAN / CGSB -32.310).
Conversion of natural vegetation to agriculture is a major source of CO2, not only due to losses of
plant biomass but also, increased decomposition of soil organic matter caused by disturbance and energy costs of various agricultural practices such as fertilization and irrigation.
Amazonian grasses, sometimes called macrophytes, convert atmospheric carbon to
plant biomass, which is then processed by aquatic microorganisms upon decomposition.
With these experimental results, it is shown that, using the carboxylate - type liquid zwitterion,
plant biomass could be converted into ethanol in a single reaction pot without washing / separation processes.
After dissolving
plant biomass by the novel solvent, carboxylate - type liquid zwitterion, hydrolysis and fermentation were consecutively carried out in one reaction pot for conversion into ethanol.
In another experiment, bagasse was used as a starting
plant biomass for ethanol production without washing / separation processes.
Data were collected on the amount of irrigation, total
plant biomass, moisture content at harvest, forage quality and other agronomic traits.
This makes auxin a significant driver of
plant biomass creation on our planet.
He found that, as expected,
plant biomass decreased while the reindeer were grazing, but it bounced back a few weeks after the animals left the area.
«Each of these 10 genomes encodes for a unique composition of CAZymes — and the wider assortment helps formulate enzyme cocktails better suited for different types of
plant biomass to efficiently convert them into biofuels,» Grigoriev said.
Findings in the paper, «Worldwide Evidence of a Unimodal Relationship between Productivity and Plant Species Richness,» reveal a consistent biological rule governing the link between
plant biomass and species richness in grassland ecosystems — plant species diversity is generally greatest at intermediate levels of
plant biomass.
Comparing the newly sequenced genomes to those already available, researchers found a huge variety of carbohydrate - active enzymes (CAZymes) among the Aspergillus species, suggesting distinct strategies to break down
plant biomass.
«Because big bluestem is currently a dominant grass species of the Great Plains and makes up to 70 percent of
the plant biomass in places, how the ecosystem works could be affected by predicted changes in growth of this species,» Johnson said.
Sixty - two scientists from 19 countries spanning six continents studied the relationships between
plant biomass production and species diversity, culminating in a paper appearing in Science, the world's leading journal for cutting - edge scientific research.
The Escherichia coli (E. coli) is able to tolerate the liquid salt used to break apart
plant biomass into sugary polymers.
As productivity continues to increase, as in boreal forests,
plant biomass (the total mass of living matter of a particular type) increases, herbivore biomass increases, and ecosystems become capable of sustaining a third trophic level — the predators — with this level controlling herbivores.
Even though this increases the amount of plants consumed,
the plant biomass remains approximately at the same level as in species - poor ecosystems.
At each site Meyerson and Cronin measured
plant biomass and defenses against herbivores and quantified insect damage by galling, chewing and sucking (aphids) insects to measure the effects of herbivory on Phragmites fitness.
Similarly, carbon and resulting sugars channeled to stems and leaves increases their mass and creates more
plant biomass, a bioenergy feedstock.
«This study addresses this knowledge gap by showing that warming increased
plant biomass, but also redistributes carbon into the soil resulting in no change in soil [carbon] stocks.»
«There's been growing concern by many different groups of the potential for catastrophic forest fires to sweep through this part of the world and redistribute the radioactive contamination that is in the trees and
the plant biomass,» Mousseau says.
They showed a smaller effect for small invertebrates, such as termites, that also contribute to decomposition of
plant biomass.
«For example, this could help us develop bacterial strains that are more efficient at converting
plant biomass into liquid fuels.»
They found that the enzymes easily broke down the cellulose in
plant biomass into glucose at temperatures up to 80 degrees Celsius.
In the future, the range of bioproducts produced from
plant biomass will be immense.
In contrast to conventional biofuels derived from
plant biomass, the resultant... Read more →
He has been a member of various federal research panels, served on several editorial boards and advisory committees in microbiology, and helped author reports for DOE on solar energy generation and the conversion of
plant biomass into biofuels.
JBEI, based in Emeryville, Cal., is a multi-institutional research partnership led by Lawrence Berkeley National Laboratory (Berkeley Lab) dedicated to developing advanced drop - in biofuels — liquid fuels derived from the solar energy stored in
plant biomass that can replace gasoline, diesel and jet fuels.
His research is focused in two principal areas: The bio-production of commodity chemicals from
plant biomass and the bio-production of high value pharmaceuticals.
Tropical forest restoration: fast resilience of
plant biomass contrasts with slow recovery of stable soil C stocks.
Through sequencing of ninety - nine moose stomach microbiomes, a study led by Anders Andersson (KTH / SciLifeLab) and Henrik Aspeborg (KTH) has provided new insights into microbial
plant biomass degradation.
Supplementing with Non-Glycoside Hydrolase Proteins Enhances Enzymatic Deconstruction of
Plant Biomass, Xiaoyun Su, Jing Zhang, Roderick I. Mackie, and Isaac K. O. Cann, PLos One, http://dx.doi.org/10.1371/journal.pone.0043828, Sept. 7, 2012.
The carbon deposits accumulated within these systems are stored aboveground in the biomass of plants (tree trunks, stems and leaves), below ground in
the plant biomass (root systems and rhizomes), and in the carbon - rich organic soils typical to these ecosystems.
For 20 Million Years, the Diversity of Large Terrestrial Mammals Depended on Plant Growth (15/09/2016) For more than 20 million years, the ups and downs of diversity in terrestrial large mammals were determined by primary production, i.e. net production of
plant biomass.
Above - Ground
Plant Biomass, Carbon, Nitrogen Dynamics Before and After Burning in a Seminatural Grassland of Miscanthus sinensis in Kumamoto, Japan, Yo Toma, Fabian Fernandez, Aya Nishiwaki, Toshihiko Yamada, German Bollero, J. Ryan Stewart, Global Change Biology - Bioenergy, 2 (2): pp. 52 - 62, April 28, 2010.
«Kirk routinely assumes the responsibility of liaison between cooperating programs and is responsible for data collections that range from soil sampling to
plant biomass sampling to taking physiological measurements with delicate instrumentation,» Xue said.
However, it is clear that in the world dominated by humans certain ecological «rules,» such as the correlation between large mammal diversity and
plant biomass, no longer apply in the same way as they used to do for millions of years.
For more than 20 million years, the ups and downs of diversity in terrestrial large mammals were determined by primary production, i.e. net production of
plant biomass.
This has significance and potential impact for agriculture and the national economy in the form of developing potential biofuels feedstocks, understanding host - pathogen interactions, and improving crop
plant biomass.
Ordinarily, it is wasted when
plant biomass, including cellulose, is converted into biofuels like ethanol.
Soils hold more carbon than all of the earth's
plant biomass and atmosphere combined.
Cellulase denotes a family of enzymes primarily produced by bacteria, fungi, and protozoans that hydrolyze cellulose, a polysaccharide of -(1g4) linked glucose molecules that constitutes the principal structural molecule of plants and is the most abundant component of
plant biomass.
Here's how it works: Grass plants convert solar energy (and atmospheric carbon dioxide) into
plant biomass, and the cow synthesizes that plant material into her own energy via the cellulose - digesting microbes in her rumen.
So if we have 100 pounds of
plant biomass above ground, and an additional 100 pounds below ground, this still represents only 30 to 40 percent of this plant's total energy production.
... A healthy plant will have at least as much root biomass below ground as there is
plant biomass above ground.
Such connections would be much harder to detect from space for terrestrial
plant biomass.»
Such a phenomenon would require an enormous, non-anthropogenic, long term net reduction in total
plant biomass on the planet, because without such a reduction, CO2 would merely be cycling rather than accumulating.
«Decade - Long Soil Nitrogen Constraint on the CO2 Fertilization of
Plant Biomass.»
Providing policy and financial incentives to use
plant biomass for energy runs counter to the goal of protecting and regenerating ecosystems and thus threatens to greatly exacerbate global warming rather than mitigate it.