Sentences with phrase «grow on biomass»

Genome - resolved metagenomics has enabled a detailed view of microbial communities adapted to grow on biomass substrates.

Not exact matches

«Together, these biomass consumption and behavior data indicate that deer selectivity likely depends more on species and growing season than on native or invasive introduced plant status,» she said.

The microbe Clostridium thermocellum (stained green), seen growing on a piece of poplar biomass, is among several microorganisms recently evaluated in a BioEnergy Science Center comparative study.

This Bioenergy Technologies Office helps solve this equation by supporting research on which bioenergy crops to grow and how to grow them; technologies designed to convert biomass to fuels and other products; and analysis methods for determining how well the production processes achieve their economic and environmental goals.

Don't even think of trying to keep yourself warm on the amount of biomass you can grow on 0.025 acres of land.

However, strong population growth in developing countries, especially sub-Saharan Africa, has meant that the number of people relying on biomass for cooking has grown by 400 million people, despite growing awareness of the associated health risks and decades of programmes targeting access to modern cooking.

They exclude it based on the assumption that this release of carbon dioxide is matched and implicitly offset by the carbon dioxide absorbed by the plants growing the biomass.

They exclude it based on the theory that this release of carbon dioxide is matched and implicitly «offset» by the carbon dioxide absorbed by the plants growing the biomass feedstock.

On the other hand, this option would also exclude the sequestration benefits provided by plant photosynthesis in growing biofuel and biomass crops.

They see small - scale cellulosic refineries located near switchgrass grown on empty fields, beside pulp paper mill plants, or linked to municipal landfills, producing ethanol and using leftover biomass for co-generation of heat.

«Every year, indoor air pollution is responsible for the death of 1.6 million people — that's one death every 20 seconds... In sub-Saharan Africa, the reliance on biomass fuels appears to be growing as a result of population growth and the unavailability of, or increases in the price of, alternatives such as kerosene and liquid petroleum gas.»

Building on earlier research showing the carbon payback time of biofuel crops grown on certain types of land, the new study uses «a new, geographically detailed database of crop locations and yields, along with updated vegetation and soil biomass estimates, to provide carbon payback estimates that are more regionally specific than those in previous studies,» write the authors.

But when pressed, Lovelock said he does believe there's potential in «biochar» — that is, converting some of the world's biomass (e.g. forest slash, agricultural residues, fast - growing grasses grown on depleted soils, farmed algae) into charcoal and sequestering the black mass in soil or under the ocean.

«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.

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

The major advantage of forests and trees as a source of biomass is their lower energy inputs and their ability to grow on sites with lower fertility than those required for agriculture.

grow on degraded land: Mehmood, M.A., et al. «Biomass Production for Bioenergy Using Marginal Lands.»

With growing concerns about the greenhouse gas balance of many types of biomass and bioenergy — as well as effects on biodiversity, land use, and competition with food production — the EU needs to get policies right by capping the contribution of bioenergy to renewables targets at sustainable levels, and promoting only bioenergy that is both sustainable and delivers real carbon benefits.

Environmentally, growing such volumes of biomass would have profound effects on biodiversity.

Eastman et al. (2001b), for example, found that with doubled CO2 the grasslands of the central United States were more water efficient on an individual stoma level (biophysical forcing), but grew more biomass (biogeochemical forcing).

On the other hand, wood and other types of biomass can be grown in a matter of years, and are available almost anywhere.

«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.»

As the plant stock on land grows larger, it reduces atmospheric carbon concentrations by shifting the balance of carbon stored in biomass versus carbon stored in the air.

Depending on variety and growing conditions, hemp is a very effective producer of biomass.

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:

From sourcing waste biomass through sterilizing the substrate to inoculating it with mycelium, the process of growing shrooms on this scale is not a million miles different from the process that DIYers would follow.

Tilman and his colleagues found that, in addition to producing more than twice the biomass than single - species planting (not less than 238 % more than switchgrass), multiple - species plantations restored biodiversity, grew on degraded land and — perhaps most importantly — could be carbon negative.

This can happen naturally, as growing trees and plants turn CO2 into biomass (wood, leaves, and so on).

Some time ago I posted on hugelkultur raised bed gardening — an initially labor intensive method of growing that involves burying massive amounts of woody biomass underneath your growing bed, providing a long - term release of nutrients and a greatly increased water - storage capacity as the materials slowly rot down.

But there is a bright spot on the biofuels landscape; it involves using biomass waste and growing feedstocks on land that stores very little carbon.

What distinguishes this book from others on the topic is MacKay's insistence on using numbers rather than adjectives to delineate the problem, leading to conclusions such as: «To provide one quarter of [the U.K.] current energy consumption by growing energy crops, for example, would require 75 % of Britain to be covered with biomass plantations.»