... dry mass of several species that grow on landslides. To make regressions of biomass against height and ... ...
NBII National Biological Information Infrastructure
Figure 2. Above ground woody biomass across a gradient of forest degradation in Central Kalimantan whiskers Gradient of increasing degradation Methods: Above ground woody biomass was measured for 2355 trees this we calculated the above ...
E-print Network
Spatial Distribution of Above Ground Biomass in Amazon Basin. The amount and spatial distribution of forest biomass in the Amazon basin is a major source of ...
NASA Website
forest biomass for both pracutical forestry issues and scientific purposes. Biomass ... boreal forest and the atmosphere. Above ground forest biomass, ...
metric within biomass bin. 4. Discussion The results of the biomass mapping demonstrate the utility and spatial distribution of above-ground biomass across tropical Africa. Comparison with GLAS lidar energy.1088/1748-9326/3/4/045011 A first map of tropical Africa's above-ground biomass ...
... were measured from above ground plant and belowground stem biomass samples from experimental plots in moist acidic ... ...
Jun 16, 2011 ... Title: Developing above-ground woody biomass equations for open-grown, multiple- stemmed tree species: shelterbelt-grown Russian-olive ...
Treesearch
Above ground plant biomass and leaf area were measured in a tussock tundra experimental site. The plots were set up in 1981 and have been harvested in ... ...
Above ground plant and belowground stem biomass was measured in moist acidic and non-acidic tussock tundra experimental sites. Treatments sampled were control plots and plots amended ... ...
Above ground plant and below ground stem biomass was measured in the Arctic LTER acidic tussock tundra experimental plots. Treatments included control, nitrogen plus phosphorus amended plots for either ... ...
Sep 1, 2010 ... Terrestrial Biomass Pilot Product: Estimating Biomass and Carbon Storage by Combining Satellite and Ground Observations (internal project) ...
It is widely accepted that estimates of forest above-ground biomass are required as inputs to forest
NASA Technical Reports Server (NTRS)
There is a large uncertainty in carbon allocation and biomass accumulation in forest ecosystems. With the recent availability of remotely sensed biomass estimates, we now can test some of the hypotheses commonly implemented in various ecosystem models. We used biomass estimates derived by integrating MODIS, GLAS ...
NASA Astrophysics Data System (ADS)
Amazon Basin Above Ground Live Biomass (AGLB), 1990-2000. Summary: To determine the spatial distribution of forest biomass of the Amazon basin, ...
Jul 30, 2007 ... We use these measurements to measure biomass of the forest. The biomass is the weight of the woody parts of the tree that exist above ground ...
This data set includes the above ground biomass data from the harvest of the artificial communities experiment sampled in 2002. This harvest was conducted to calculate total plant and soil N ... ...
... relationship between tree species diversity and above-ground biomass in ... as productivity and stability - is still a matter of debate (Lehman & Tilman ... ...
The study reported used the Michigan Microwave Canopy Scattering model (MIMICS) and forest canopy biometric data from tropical and subtropical broadleaf forests to simulate a series of forest stands having equivalent above ground biomass while still exhibiting substantial structural differences. The potential effect that extreme ...
Forest fires exhibit considerable spatial heterogeneity with respect to fire severity with obvious implications for carbon losses to the atmosphere, and yet fire severity is poorly quantified at the landscape level. In this study we evaluate the impacts of including estimates of fire severity on carbon losses in north western Ontario, Canada. Field studies from 162 plots were used to characterize ...
Regional-scale above-ground biomass (AGB) estimates of tropical savannas and woodlands are highly uncertain, despite their global importance for ecosystems services and as carbon stores. In response, we collated field inventory data from 253 plots at four study sites in Cameroon, Uganda and Mozambique, and examined the relationships between field-measured ...
This dissertation assessed remotely sensed data and geospatial modeling technique(s) to map the spatial distribution of total above-ground biomass present on the surface of the Savannah River National Laboratory's (SRNL) Mixed Waste Management Facility (MWMF) hazardous waste landfill. Ordinary least squares (OLS) regression, regression kriging, and ...
A micropropagation protocol was recently developed for Eucalyptus polybractea R.T. Baker, a commercially important eucalypt grown in short-rotation coppice cultivation and harvested for its foliar 1,8-cineole oil. Micropropagation of elite E. polybractea trees has resulted in selection gains for foliar oil traits, but decreased above-ground biomass ...
PubMed
Observations from the moderate resolution imaging spectroradiometer (MODIS) were used in combination with a large data set of field measurements to map woody above-ground biomass (AGB) across tropical Africa. We generated a best-quality cloud-free mosaic of MODIS satellite reflectance observations for the period 2000-2003 and used a regression tree model ...
By using the principles and methods of fractal geometry theory, the relationship between above ground biomass and plant length or sheath height of Carex lasiocarpa population was studied. The results showed that there was a good static fractal relationship between them, and the resulted fractal dimension was an efficient description of ...
... within-crown foliage distribution and properties of individual leaves is related to its above-ground live biomass, and hence, the amount of carbon. ...
Abstract: The FIFE Standing Crop and Nitrogen Content Data Set contains biomass and nitrogen concentration data for live and dead above-ground plant ...
The goal of this research is to study the change in plant growth and species distribution during succession. Annual plant growth above ground is annually ... ...
The FIFE Standing Crop and Nitrogen Content Data Set contains biomass and nitrogen concentration data for live and dead above-ground plant material ...
The purpose of the Siberian Mapping Project is to improve forest cover maps and create above ground biomass maps of the Siberian boreal forest. ...
Jun 16, 2011 ... Keywords: tamarack biomass, Larix laricina [Du Roi] K., tamarack, equations, weight, component proportions, specific gravity trends, ...
... 31.) This file is the July 26-27, 1984 harvest of the controls and nitrogen + phosphorus treatments....
Estimation of Above Ground Biomass in the Everglades National Park using X-, C-, ... Carbon losses due to natural or human intervention affects global ...
Vegetation 3D structure measurements from active remote sensing (i.e. lidar and radar) are usually averaged and reported at the regional level. However, environmental gradients and disturbance can structure vegetation patterns at multiple scales. Thus, a critical challenge in designing global observation strategies is to obtain confidence intervals on vegetation parameters as a function of biome, ...
... measured from above ground plant and belowground stem biomass samples from experimental plots in moist acidic and moist non-acidic tundra. Biomass data are in 2000lgshttbm.dat....
Above ground plant biomass and leaf area were measured in a moist acidic tussock tundra experimental site. The plots were set up in ... 2004 431:440-443) This file contains the biomass numbers for each harvest...
Background and AimsBiomass is an important trait in functional ecology and growth analysis. The typical methods for measuring biomass are destructive. Thus, they do not allow the development of individual plants to be followed and they require many individuals to be cultivated for repeated measurements. Non-destructive methods do not have these ...
PubMed Central
The report presents total above-ground oven-dry biomass estimates by stratum and species for 13 plant community types located in northeastern Minnesota.
Energy Citations Database
Biomass prediction equations were developed for five species of tall shrubs from northeastern Minnesota, including mountain maple, green alder, juneberry, beaked hazel, and willow. The equations, based on individual plants, predict total above-ground biom...
National Technical Information Service (NTIS)
... were Agropyron repens, Sinapis arvensis, Arrhenatherum bulbosum and Picris echioides. As a general conclusion, biomass distribution among ... repens, Arrhenatherum bulbosum, Rumex crispus, Geranium dissec...
The application of special scanning technologies in plant population studies makes it now possible to offer reliable indirect estimations of Leaf Area Index (LAI). This has stimulated the adaptation of related biomass assessment methods and has provided a way to simplify tedious laboratory procedures whilst avoiding destructive sampling. Particularly, ...
Knowledge about forest above-ground biomass is of fundamental importance in quantifying the terrestrial carbon cycle, but is also crucial in assessing forest resources and the ecosystem services provided by forests, and is an essential element in assessing carbon fluxes under the United Nations Framework Convention on Climate Change. For most parts of the ...
Adequate management of forest plantation requires estimation of growth and biomass yield and consequently, the fitting of functions for estimating biomass. Growth, biomass yield and biomass functions for estimating biomass of Nauclea diderrichii plantations in Omo forest reserve, Nigeria are ...
Field investigations were conducted in Liudaogou small watershed in late September 2009 to study the differences of vegetation above-ground biomass, soil moisture content, and soil nutrient contents under different land use patterns, aimed to approach the vegetation above-ground biomass level and related affecting ...
My objective was to use a time series of landsat images of Yellowstone National Park to track changes in above ground biomass and foliar nitrogen following the 1988 fire that burned about 36% of the park. To do this, I used field studies to correlate aboveground net primary production (ANPP) to a Normalized Difference Vegetation Index ...
... 5 (C5) by C. komorovii. Quantitative methods, including geostatistics, were used to compare community composition, structure, and ... ...
... such as Polemonium eximium, robust Carex species, and Hulsea algida, have greater above-ground biomass than the HD ... species (e.g., Carex heteroneura, Polemonium eximium, and Hulsea algida) and few low-...
... brevifolium (67%), Jasione crispa subsp. centralis (57%), and Silene ciliata subsp. elegans (45%). Among the lichens the ... above-ground biomass, a rather different pattern emerges, Silene ciliata (5.1 g...
Sep 8, 2005 ... Stand biomass of the old stands was high for temperate deciduous forests (>300 Mg/ha above ground); however, ANPP was average (6-10 ...
Stand biomass of the old stands was high for temperate deciduous forests (>300 Mg/ha above ground); however, ANPP was average (6-10 Mg/ha/yr) and tended to ...
Jul 20, 2010 ... The new forest height map is a step toward a global map of all above-ground biomass. Sassan Saatchi, senior scientist at NASA's Jet ...
trifolia), Eriophorum vaginatum and Sphagnum magellanicum and Sphagnum angustifo- lium are dominant species in bog hollows and Carex oligosperma, Sphagnum magellanicum and S. papillosum, with some K. angustifolia above-ground biomass was 587 g m�2 in the bog, composed mainly of shrubs and Sphagnum capitula
) integration with other data sets (e.g. DMCii and ASAR). Results & Discussion: Above ground biomass predictably
Above-ground and below-ground biomass, percent dead shrubs by species, and percent of dead stems of living species were determined for a site in the northern Mojave Desert.
The accumulation of small diameter trees (SDTs) is becoming a nationwide concern. Forest management practices such as fire suppression and selective cutting ... ...
It is desirable to be able to predict above ground biomass production indirectly, without extensive sampling or destructive harvesting. Leaf area index (LAI) is the amount of leaf surface area per ground area and is an important parameter in ecophysiology. As LAI increases, the photosynthetically ...
Technology Transfer Automated Retrieval System (TEKTRAN)
Nutt., and Psoralea tenuiflora var. floribunda (Nutt.) Rydb. At this site, peak above-ground biomass, Cyperaceae (including Carex and Cyp- ems), and forbs. Immediately after separation of the samples, leaf area
... types (11.4-51.4%). The total emitted carbon ('presumed release') in each ecosystem ... for the burning of non-anthropic savannas. This suggests that the ... ...
. .....................................15 Figure 4. Non-metric multi-dimensional ordination of floristic data for ironbark/gum woodland..17 Figure 6. Mean above-ground plant biomass (gm/0.25m�) for low density ironbark/gum woodland (LU ...
The authors have derived an expression for the current induced by a high-altitude electromagnetic pulse (EMP) on a thin wire above ground. The assumption of a thin wire is the only approximation made. Calculations based on the expression are then compared...
In recent years, LiDAR (Light Intensity Detection Amplification and Ranging) is increasingly being used in estimating biophysical parameters related to forested environments. The main goal of the project is to estimate long-term biomass accumulation and carbon sequestration potential of the redwoods ecosystem. The project objectives are aimed at providing an assessment of ...
The objective of this study was to estimate the stem volume and biomass of individual trees using the crown geometric volume (CGV), which was extracted from small-footprint light detection and ranging (LiDAR) data. Attempts were made to analyze the stem volume and biomass of Korean Pine stands (Pinus koraiensis Sieb. et Zucc.) for three classes of tree ...
The purpose of this report is to describe the woody biomass resource within US Department of Energy's Pacific Northwest and Alaska Regional Biomass Program, comprised of southeast Alaska, Idaho, Montana, Oregon, and Washington. In addition to the regional forest biomass assessment, information will be presented for logging ...
DOE Information Bridge
Models are presented for estimating: individual tree green and oven dry bole biomass; individual tree green and oven dry above ground biomass; distribution of oven dry weight along the bole as a function of the attained inside bark diameter; oven dry weight of branches; total cubic foot volume of the bole; and bole ...
Radar and lidar remote sensing techniques have demonstrated the ability to estimate the above ground biomass within a reasonable (10%-35%) accuracy level over a wide range of forest types. The conventional local approaches are based on relationships of biomass to polarimetric radar backscatter and to vertical ...
Lidar remote sensing uses vegetation height to estimate large-scale above-ground biomass. However, lidar height and biomass relationships are empirical and thus often lead to large uncertainties in above-ground biomass estimates. This study uses vegetation structure measurements from field: an airborne lidar (Laser ...
The sensitivity of the microwave return recorded by the ERS-1 C band Synthetic Aperture Radar (SAR) to changes in above ground woody biomass in young loblolly pine forests (dry weight biomass less than 6 kg/sq m) was evaluated. Radar backscattering coeffi...
Models are presented for estimating: individual tree green and oven dry bole biomass; individual tree green and oven dry above ground biomass; distribution of oven dry weight along the bole as a function of the attained inside bark diameter; oven dry weig...
Long-term studies using the RAINFOR network of forest plots have generated significant insights into the spatial and temporal dynamics of forest carbon cycling in Amazonia. In this work, we map and explore the landscape context of several major RAINFOR plot clusters using Landsat ETM+ satellite data. In particular, we explore how representative the plots are of their landscape context, and test ...
In this study, we have been investigating an urban brownfield at Liberty State Park that has been abandoned approximately for 40 years. Natural colonization has taken place that allowed a pioneer forest to grow with primarily Betula populifera and Populus spec. Despite soil metal contamination this urban forest exhibits moderate annual productivity and serves as a carbon sink. Diameters at breast ...
The overall goal of this paper was to compare biomass estimates and forest structure metrics obtained by processing ICESat waveform data and spatially coincident discrete-return airborne lidar data over varied terrain conditions. For mostly flat-terrain conditions, we investigated lidar data over forests in east Texas, which are characteristics for most of the south-eastern ...
Central Africa contains the second largest block of tropical forest remaining in the world, and is one of the largest carbon reservoirs on Earth. The carbon dynamics of the region differ substantially from other tropical forests because most deforestation and land use is associated with selective logging and small-scale landholders practicing traditional "slash-and-burn" agriculture. Despite ...
A field experiment carried out during 2001--2002 under semi-arid conditions of Hyderabad, India investigated the effect of three different methods of harvesting at full bloom stage, on essential oil yield and quality of methyl eugenol rich sacred/holy basil (Ocimum tenuiflorum L.f.; Lamiaceae). The harvest methods were: harvesting of primary branches, secondary branches and shoot ...
Sensible, (H), and latent, (LE), heat fluxes and turbulence statistics in St. Louis, Missouri and the surrounding region are presented. The urban-scale analyses were derived from a series of aircraft transects at 150 m above ground across the metropolitan...
Sensible, (H), and latent, (LE), heat fluxes and turbulence statistics in St. Louis, Missouri and the surrounding region are presented. The urban-scale analyses were derived from a series of aircraft transects at 150 m above ground across the metropolitan area during the afternoo...
EPA Science Inventory
A digital elevation model (DEM) of the Yosemite Valley area of Yosemite National Park derived from LIDAR that was flown September 18-26, 2006. All above ground features such as vegetation, buildings, ... ...
The diffusive gradients in thin films (DGT) technique was evaluated in modelling wheat (Triticum aestivum) arsenic toxicity using a dataset of As-contaminated soil samples (n=28) collected from former sheep dip sites. Above ground wheat biomass from a 21-day early growth bioassay was adopted as the response variable and the ...
We have been able to successfully predict the atmospheric effects and concentrations of smoke downwind from Alaska wildfires. The so-called UAFSmoke system includes detection of wild fire location and area using data from the Alaska Interagency Coordination Center and thermal anomalies from the MODIS instrument. Fire emissions are derived from above ...
Previous forest research using time-of-flight lidar suggests that there exists some quantile of the distribution of laser canopy heights that could provide an estimate of various forest biophysical properties. The results presented here not only support this theory, but also extend it by suggesting that a quantile of the distribution of all laser heights could provide estimates of aboveground ...
Sawgrass biomass is measured for TS/Ph-1, 2, 3, & 6 since 1999,TS/Ph-4 & 5 since 1997; SRS-1b, 2, & 3 since 2000. Three 1 m2 plots are placed on each site. ... ...
Sawgrass biomass is measured for TS/Ph-1, 2, 3, & 6 since 1999; TS/Ph-4 & 5 since 1997 to 2006; SRS-1b, 2, & 3 since 2000; SRS1c for 2005 to 2006, and SRS1d ... ...
Sawgrass biomass is measured for TS/Ph-1, 2, 3, & 6 since 1999; TS/Ph-4 & 5 since 1997; SRS-1b, 2, & 3 since 2000; and SRS1c for 2005 only. Three 1 m2 plots ... ...
The initial results of an experiment to examine the dependence of radar image intensity on total above-ground biomass in a southern US pine forest ecosystem are presented. Two sets of data are discussed. First, we examine two L-band (VV-polarization) data...
The influence of plant density on growth, yield, and rates of nutrient accretion in above ground and belowground biomass were evaluated for /und Albizia/ /und lebbek/ (L.) Benth. plantations in Puerto Rico. The density treatments included in the study wer...
The oven-dry biomass and protein content of leaf, unlignified, bark and wood tissues of five hybrid poplar clones grown in Southern Ontario were analyzed at biweekly intervals between July and October 1974. Crude protein levels per gram of each tissue dec...
Ponderosa pine saplings and seedlings were continuously exposed to elevated CO sub 2 concentrations of ambient, and ambient +75, +150, and +300 ppm in open-top chambers for 27 months. Saplings responded by reducing above ground biomass production. Althoug...
At a site in Udine, Italy, a 0.7m layer of As, Co, Cu, Pb and Zn contaminated wastes derived from mineral roasting for sulphur extraction had been covered with an unpolluted 0.15m layer of gravelly soil. This study investigates whether woody biomass phytoremediation is a realistic management option. Comparing ploughing and subsoiling (0.35m depth), the ...
The productivity of the vegetation layer and its consumption by cattle, goats and sheep are important topics in characterizing the ecologic conditions in the North-western Namibian rangeland. Using a mesoscale biosphere model the calculation of above ground phytomass (= biomass) and their seasonal productivity based on satellite data ...
Climate change is expected to have a significant impact on high-latitude forests in terms of their ability to sequester carbon as expressed as pools of standing total biomass and soil organic matter. Above ground biomass is an important driver in ecosystem process models used to assess, predict, and understand ...
Airborne lidar and hyperspectral data can improve estimates of aboveground carbon stocks and fluxes through their complimentary responses to vegetation structure and biochemistry. While strong relationships have been demonstrated between lidar-estimated vegetation structural parameters and field data, research is needed to explore the portability of these methods across a range of topographic ...
Component biomass prediction equations are presented for young black spruce (Picea mariana B.S.P. (Mill.)) in northern Maine. A weighted least-squares model was used to construct the equations for small trees from 1 to 15 cm d.b.h., and an ordinary least-squares model for trees less than 2 m in height. A linearized allometric model was also tested but was not used. Equations ...
One of the main strengths of active microwave remote sensing, in relation to frequency, is its capacity to penetrate vegetation canopies, and reach the ground surface, so that information about the vegetation and hydrological properties of the surface can be drawn. All this infor-mation is gathered in the so called backscattering coefficient (? 0 ), and in a vegetated medium, this coefficient ...
that hyperaccumulates arsenic L. Q. Ma, K. M. Komar, Cong Tu, Weihua Zhang, Yong Cai, E. D. Kennelley Nature 409, 579 of these plants has been shown to hyperaccumulate arsenic -- that is, the concentration of arsenic above-ground biomass. This plant -- which, to our knowledge, is the first known arsenic hyperaccumulator
Grain yield was predicted using only information potentially obtainable from satellite imagery. Above-ground biomass at 20 day intervals, latitude, mean thermal time (above 0 C) from February till June and yield were abstracted from studies on barley. The...
at the fertilized stand and at the control stand. Respiration from the forest floor and above- ground biomass of photosynthetically active radiation (PAR) reaching deep in the canopy thereby reducing assimilation rates temperature and relative homidity, where z is the height above the forest floor. The vapour pressure deficit
Allometric equations were developed for orchard-grown pecan [Carya illinoinensis (Wangenh.) C. Koch] trees. Trees, ranging in size from 22 to 33 cm in trunk diameter 1.4 m above the ground, were destructively harvested from two sites. The entire above-ground portion of the trees was harvested and...
Above ground net primary production (ANPP) is a measure of the rate of photosynthesis in an ecosystem, and is indicative of its biomass productivity. Prior studies have reported a relationship between ANPP and annual precipitation which converged across biomes in dry years. This deserves further s...
The relative decomposability of corn (Zea mays L.) residues from insect (Bt)-protected hybrids and conventional hybrids cultivated under insect pressure was investigated in two studies. Above-ground biomass, residue macromolecular composition, and stalk physical strength were also measured. In the...
We measured carbon isotope discrimination ('13C) and tissue N concentration in above ground biomass over four years at the Prairie Heating and CO2 Enrichment (PHACE) experiment in southeastern Wyoming, USA. This factorial experiment combined FACE (ambient and elevated [600 ppm] CO2 concentration), e...
Switchgrass plants from two populations, C+3 developed by three breeding generations for high digestibility and C-1 developed by one generation of breeding for low digestibility, were used in this study Above ground biomass from 12 selected genotypes, 3 each with high or low digestibility within ea...
... 56.5% of pre-burn C) or as charcoal and ashes (1.4 Mg C ha-1 or 2.0%). Carbon stock in charcoal increased from 0.50 Mg C ha-1 ... above-ground carbon stock. The net gain of charcoal carbon was composed of...
of above- ground biomass increment (g m-2) and the amount of photosynthetically active radiation-beam radiation and maintenance respiration can also affect (Dewar, 1996; Bange et al., 1997b; Goetz and Prince. 106, 317�330. Dewar, R.C., 1996. The correlation between plant growth and intercepted radiation
A series of 84 biomass sampling plots were established in 2 to 10-year-old black locust stands in order to determine total energy content and usable energy content of the above ground biomass. Average whole-tree heats of combustion ranged from 8600 to 8539 Btu/lb for 2 and 10-year-old stands, respectively. Average ...
Humans have appropriated an estimated 20% of global net primary productivity (NPP) and 38% of this population is dependant on the $900 billion yr-1 in ecosystem services from drylands that cover 41% of the terrestrial surface. Commercial and subsistence livestock (cattle, sheep, and goats) grazing is embedded in this appropriation and has been implicated in dryland degradation. However, the ...
The frequencies of chromosomal aberrations induced by intraperitoneal injection of female CD-1 mice with shale-derived oils and oil shale process waters were investigated. Exposure to a crude shale oil from a vertical, above-ground retort process induced ...
Regular vegetation patterns have been observed in many arid zones around the word. This particular spontaneous arrangement of the vegetation optimizes the use of the scarce water resources and could be imitated to restore vulnerable ecosystems; at the same time, the patterns of vegetation act as an early warning signal of the fact that fragile ecosystems may suddenly undergo irreversible shifts, ...
