Examples of biomass

Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0
In these treatments slug numbers and biomass were as high as in plots lacking predators.
Traits like early seedling establishment, early growth vigour and ground coverage, high biomass, early flowering and maturity were taken into consideration to select drought-tolerant genotypes.
Robust sulphate reduction, substrate utilization, and target biomass production is currently being observed and reported.
Although significant differences were found in total biomass, the species composition remains mainly constant during the year.
Sampling times correspond to preplant = 1, 4, 7, and 10; peak biomass = 2, 5, 8, and 11; post-harvest = 3, 6, 9, and 12.
The more intensive cropping that results when the incidence of fallow is reduced increases biomass inputs to the system.
There are no published biomass estimates for liana forest per se, but they fall into the general category of non-dense forests.
Total liana basal area, and thus estimated biomass, remained relatively constant over stand age.
The size of the circles is proportional to the net change in above-ground biomass.
Unbranched species can potentially grow in height faster than highly branched species because lower biomass is required for unit height growth.
We estimated the total above-ground biomass to be 384 t ha-1.
Competition becomes more important as soon as the vegetation reaches the low-biomass grassland state, and competitive exclusion may occur.
Seeds are the major edible component of the fruit biomass constituting nearly 56% of the consumable biomass.
Despite their low densities, gorillas accounted for nearly a third of the primate biomass.
A regression model relating the biomass of a tree to its dbh (diameter at breast height) was deduced from previously published data.
Only data from fleshy fruits, expressed as per cent monthly biomass and as per cent of species fruiting per month, are presented here.
In terms of gross biomass, omnivores (7%) rival aerial insectivores but the remaining guilds account for only 8% in total.
In contrast, we determined the epiphytic biomass for trees.
We found that the biomass of epiphytes and their associated detrital matter in this plot was 3360 kg ha-1.
Consequently, we hypothesized that epiphytes may contribute to a relatively similar pattern of biomass and nutrient accumulation as their counterparts in tropical moist cloud forests.
Occurrence of epiphytic biomass was 16, 36, 24, 21 and 3% on the trunk foot, trunk, main branching point, lower canopy and outer canopy respectively.
The regression equation then was used to estimate the total epiphytic biomass and nutrient content of the plot.
The epiphytic biomass for the entire forest was estimated to be 3360 kg ha-1.
The density and biomass of groundfeeding birds were regressed on the number and biomass of litter invertebrates.
In both seasons, the ground-herbs layer had the lowest biomass, mainly due t o t he nearly complete absence of frugivores.
All structural and biomass data were calculated for the stand as a whole as well as for pioneer trees and later-successional trees.
In contrast, biomass allocation and leaf area ratios were only comparable for forest and shadehouse seedlings grown in the high-light treatment.
To account for this potential effect, we first looked for evidence of size-dependent biomass allocation by comparing linear and exponential regressions between two size components.
We observed no clear pattern between plasticity in biomass allocation patterns and growth capacity.
Consequences of competition are more severe for small seedlings than for tall seedlings due to the higher grass biomass encountered.
Aroids were most diverse (58 species) and represented 76% of the total recorded biomass.
Therefore, we have focused considerable attention o n t he relative abundance and estimated biomass of arthropods in the two trees.
In other words, the determinant o f p lot basal area, a nd thus biomass, is the size that co-occurring trees grow to.
The weighted abundance used as an indicator of population biomass, is the p roduct of the abundance with the mean body size of the species.
We calculate secondary regrowth to attain 75% of mature forest biomass after 175 y of regeneration.
Extrapolating our equation beyond this time span, biomass would theoretically accumulate to within 75% of the mature-forest level after 175 y of regeneration.
Despite significant effects on stand biomass, nutrient addition did not affect stand composition.
Significant seasonal fluctuations of biomass and necromass occurred at all three sites and in both horizons.
The remaining biomass compartments (plants < 2 mm dbh, leaf-palms, ferns and grasses) were quantified b y complete d estructive harvesting within the entire plots.
Rates of species and biomass accumulation, as well as the composition of successional communities vary.
The weight of the airdried biomass was determined for the fractions grasses, herbs and leaf litter.
Above-ground biomass of herbaceous plants was measured using the quadrat method.
Plants surviving in stressful habitats, such as mangroves, are probably more affected by loss of leaf biomass than those surviving in favourable environments.
Notwithstanding successional status, the slow-growing species registered minimum reduction in biomass due to water stress.
Thus, the smaller the depression in biomass due to water stress, the higher is the tolerance index.
Losses of 90% of amphibian biomass throughout highland tropical areas will affect nutrient cycling and energy flow, within and between habitats.
Antibiosis was estimated as the biomass accumulated by each aphid species on each accession during infestation.
The established linear relationship between above-ground biomass and maximum flood depth was not reached by coincidence.
We therefore conducted a seed bank study in fallow and forested areas in addition to measurements of its rate of height growth and biomass accumulation.
The most relevant cause of spatial variability in biomass is related to water retention and drainage capacity.
Based on data from this experiment, 4- and 6-week durations of solarization were optimal for increasing crop biomass.
In one mouse we found 392.2 mg of biomass from 17 worms representing 0.87% of the body weight of the host.
Estimates of worm burdens varied from 2 to 73,380 worms per fox, with a total parasitic biomass of 270,270 worms.
Results indicated that several common algorithms used to estimate biomass and leaf chlorophyll content were effective in predicting plant stress under all seven illumination sources.
In all cases, the healthy control plants exhibited larger canopies with higher overall biomass and chlorophyll concentrations, as compared with the nutritionally stressed plants.
The variables denote the total amount x of biomass per unit volume and the concentration s of remaining nutrient.
In this model, invasion success is quantified in terms of the biomass of the invader.
In each infected individual, the parasite burden is presented by number and by biomass.
There was no difference between males and females in prevalence or parasite burden (by number or by biomass).
Weeds, primarily green foxtail and witchgrass, were allowed to grow for 7 weeks in each crop, then harvested for biomass.
Seasonal effects on microbial biomass were few and inconsistent across locations.
Sampling times correspond to preplant = 1, 4, 7, and 10; peak biomass = 2, 5, 8, and 11; and post-harvest = 3, 6, 9, and 12.
Total biomass was measured to determine the productivity of each cropping system.
Except in special circumstances where one may be looking for specific microbes, the knowledge gained by viable counts is minimal for biomass estimations.
Superimposed on this patchy pattern was a trend of increasing biomass through late summer.
Controlling for soil quality with regional dummies, we regressed the biomass density on annual rainfall in the villages for which biomass density data were available.
As stated, the result of this biomass change will depend to some degree on local conditions.
Green biomass was reduced by grazing by 55% in relation to the biomass in the total exclosure plots.
Early sowing could increase biomass and competitiveness, but poor crop establishment sometimes overrode the effect.
At harvest, plants were sampled to quantify aboveground biomass, grain yield, grain number and average grain weight.
Selection for reduced carbon isotope discrimination increases aerial biomass and grain yield of rainfed bread wheat.
An approach to modelling the effect of environmental and physiological factors upon biomass accumulation in winter wheat.
Grain and biomass yield were determined as an average of the three randomly selected plants.
Sink-limitation to yield and biomass: a summary of some investigations in spring wheat.
Above-ground biomass produced in agricultural or natural ecosystems is either removed from the system or remains on the soil surface.
Application of fertilizers significantly increased the total above-ground biomass.
Changes in soil fungal:bacterial biomass ratios following reductions in the intensity of management of an upland grassland.
In addition to slug numbers and biomass, we analysed mean slug weights to see whether these varied between treatments at the end of the experiment.
The graphs are plotted only over the ranges of counts/biomass/cover observed for that relationship, with no extrapolation.
Biomass gained by larvae also increased with increasing temperatures but differences were only significant in 1997 (tables 1 and 2).
The initial biomasses of infested plants were estimated from their initial heights using the linear regression model derived from preexperimental plants.
The number of vessels removed could also be overstated to the extent that excess capacity can vary annually, especially in small pelagic species fisheries with their highly variable biomasses.
In this modeling the usual dynamic laws governing the growth of biomasses and the types of species competition need to be combined with dynamic laws describing population genetics.
An additional concern to scientists is that of biomass resilience in the face of environmental changes.
In addition, because there is such a lack of water, the total biomass is low.
Other places contain a huge variety of species and have a high biomass.
The study also shows that grasslands with a high above-ground biomass lose their standing crop more rapidly than those with a lower biomass.
The impact of aphids on wheat seedlings was estimated as the difference in biomass between infested plants and means for control plants (plant biomass lost).
The presence of inerts in biomass particles is represented by increasingly lighter colors.
If any of these nutrients are lacking, growth of the biomass will be inhibited.
Apart from the major cell constituents such as carbon, nitrogen, phosphorus and sulphur, bacterial biomass requires minerals and trace elements.
Other estimates (not reported here) were obtained using instrumental variables for the various terms involving the biomass variable.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.