Sentences with phrase «on high biomass»

On high biomass burning days, both biomass burning and human - based activities equally contributed to levels of secondary organic aerosol downwind of Mexico City.

Not exact matches

A researcher works on developing high quality crops for biomass conversion processes.

Based on measurements of 45,000 individual plants from 3,680 species, and using high - tech statistical mapping protocols, the team created global maps of plant traits including leaf nitrogen concentration, leaf phosphorus concentration, and specific leaf area (a measure of area displayed to intercept light per unit investment in leaf biomass).

The findings show that locations on the planet with high fossil fuel emissions and biomass burning emissions are rare, suggesting an inverse relationship in which an increase in one causes a decline in the other.

«On the one hand, biomass with a high water content which, for example, is a by - product of food production, serves as raw material.

City - sized maps of terrain and life on the sea - floor have revealed that drifts of «marine snow» on submarine hillsides act as a source of food to fuel a higher biomass of marine life on the hills than on the flatter plains surrounding hills.

The new analysis found that conventional crops such as corn had the highest yield of biomass that can be turned into biofuel on marginal lands, although their ability to reduce CO2 is harmed by tilling, fertilizing and other CO2 - producing activities necessary to turn them into fuel.

Posted on 18 June 2014 in Bio-hydrocarbons, Biodiesel, Biogasoline, Biomass, Electric (Battery), Ethanol, Europe, Fuels, High Octane Fuels Permalink Comments (0)

«An Investigation on the Economic Feasibility of Macroalgae as a Potential Feedstock for Biorefineries,» published in in 2015, is among the most downloaded, and «Assessment of Lignocellulosic Biomass Using Analytical Spectroscopy: an Evolution to High - Throughput Techniques,» published in 2014, is among the most cited.

``... since we knew that the impact of the study could be high when successful, we decided to invest our time and effort on this new research project at the interface of biomass conversion and solar energy conversion.»

«Its strategy for survival is based on a high reproductive rate, so [the Saiga] produce triplets and have the highest fetal biomass of any mammal.

His position: • No evidence of increasing lake clarity as a result of secchi measurements since 1946 • The interplay of stratification and plankton productivity are not «straightforward» • Challenges O'Reilly's assumption on the correlation of wind and productivity - the highest production is on the end of the lake with the lowest winds • A strong caution using diatoms as the productivity proxy (it is one of two different lake modes) • No ability to link climate change to productivity changes • More productivity from river than allowed for in Nature Geopscience article • Externally derived nutrients control productivity for a quarter of the year • Strong indications of overfishing • No evidence of a climate and fishery production link • The current productivity of the lake is within the expected range • Doesn't challenge recent temp increase but cites temperature records do not show a temperature rise in the last century • Phytoplankton chlorophylla seems to have not materially changed from the 1970s to 1990s • Disputes O'Reilly's and Verbug's claims of increased warming and decreased productivity • Rejects Verburgs contention that changes in phytoplankton biomass (biovolume), in dissolved silica and in transparency support the idea of declining productivity.

The ClearFuels proprietary thermochemical conversion process is based on its advanced High Efficiency Hydrothermal Reformation (HEHTR) technology for biomass - to - syngas conversion (BTG).

«They've proven that their proprietary strain can increase carbon sequestration and the ability of algae to utilize CO2 and grow higher biomass,» said Mr. Benning, who is compensated for his work on the Aurora advisory board.

UNEP Publications: This report explores how the management of land - based biomass production and consumption can be developed towards a higher degree of sustainability across different scales: from the sustainable management of soils on the field to the sustainable management of global land use as a whole.

Nitrogen could partially counterbalance O3effects on aboveground biomass when the levels of O3 were moderate, but at the same time O3 exposure reduced the fertilization effect of higher N availability.

Guest post by Indur M. Goklany In its October 14, 2010 issue, Nature magazine (p. 755) reports on a paper by JMG Hudson and G HR Henry, Increased plant biomass in a High Arctic heath community from 1981 to 2008, Ecology 90:2657 — 2663 (2009).

Low Income Countries in Sub-Saharan Africa have the highest energy intensity in the world at 10.3 MJ / 2011 PPP$ in 2014 due to their strong reliance on inefficient traditional biomass.

Increased weed and pest pressure associated with longer growing seasons and warmer winters will be an increasingly important challenge; there are already examples of earlier arrival and increased populations of some insect pests such as corn earworm.64 Furthermore, many of the most aggressive weeds, such as kudzu, benefit more than crop plants from higher atmospheric carbon dioxide, and become more resistant to herbicide control.72 Many weeds respond better than most cash crops to increasing carbon dioxide concentrations, particularly «invasive» weeds with the so - called C3 photosynthetic pathway, and with rapid and expansive growth patterns, including large allocations of below - ground biomass, such as roots.73 Research also suggests that glyphosate (for example, Roundup), the most widely - used herbicide in the United States, loses its efficacy on weeds grown at the increased carbon dioxide levels likely to occur in the coming decades.74 To date, all weed / crop competition studies where the photosynthetic pathway is the same for both species favor weed growth over crop growth as carbon dioxide is increased.72

We recently reported on a possible negative carbon feedback of forest soils in higher latitudes: when such soils warm, nutrient availability may increase, as would (therefore) biomass production and CO2 uptake.

On top of that there's the methane and the volatile organic compounds that are unavoidably released from relatively uncontrolled combustion of solid biomass fuels — small quantities but high global warming indexes.

«Urrutia - Jalabert et al. performed a series of analyses on tree ring cores they obtained from long - lived Fitzroya cupressoides stands, which they say «may be the slowest - growing and longest - lived high biomass forest stands in the world.»

If your answer is YES, then it just might be possible that a much larger reforestration (land reclaimed by high - density, fast - growing Neotropical biomass from that used by 50M people doing low - density agriculture) might have had an effect... One more time: the relevant - to - this - post interesting scientific question is whether or not a cooling that certainly happened would have had different * regional * fingerprints depending on the relative contributions of:

Worrying, the scientists note that remaining unprotected forests harbor still higher levels of biomass — an average 231 metric tons per hectare — suggesting that future clearing will have an increasingly significant impact on climate.

Radlein is on the board of directors at Dynamotive Energy Systems, an energy solutions provider based in Vancouver, British Columbia, that is one of several companies pioneering the use of pyrolysis, a process in which biomass is burned at a high temperature in the absence of oxygen.

Alongside policy support, drivers supporting the roll out of district heating include the decarboni - sation trend, as district heating can harness a range of renewable or low - carbon energy sources such as biomass and geothermal; energy security, as district heat - ing can improve the reliability of access to energy at both the user and national levels by re - ducing reliance on cen - tral energy networks; and energy efficiency, which is higher with district heating than traditional boilers.