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Journal articles on the topic 'Individual biomass'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Namoua, Dilivia J., Adnan S. Wantasen, Khristin I. F. Kondoy, Rene Ch Kepel, Febry S. I. Menajang, and Wilmy Pelle. "Carbon Absorption in Seagrasses in Tongkaina Coastal Waters, Bunaken District, Manado City, North Sulawesi." Jurnal Ilmiah PLATAX 10, no. 2 (2022): 433. http://dx.doi.org/10.35800/jip.v10i2.43485.

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This study was conducted to determine the types of seagrasses and calculate biomass and calculate how much carbon absorption in seagrasses was found in the location of Tongkaina Beach, Bunaken District, Manado City, North Sulawesi. The sampling procedure in the field is the method of cruising surveys. A cruising survey is a sample collection method that is carried out by walking through the coastal area of all seagrasses found. After the sampling at the site is completed, the sample in the inventory is then photographed. The samples that have been obtained are analyzed in the laboratory using

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Kamurahan, Nuske, Nego E. Bataragoa, and Anneke V. Lohoo. "Fish Abundance In South Poigar Rivermouth South Minahasa." JURNAL PERIKANAN DAN KELAUTAN TROPIS 11, no. 1 (2020): 1. http://dx.doi.org/10.35800/jpkt.11.1.2020.27644.

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The objective of the study is to know the fish individual abundance and biomass in the mouth of Poigar River. The study employed swept area method, sampling was done at high tide and low tide of a new moon and full moon phase using a beach seine. The seine covered 2700 m2 at low tide and 900 m2 at high tide. The fish catches in both moon phases and tidal conditions consisted of 40 species of 25 families and 481 individuals. Total fish weight was 3,804 g. The individual abundance in the new moon was 0.0004/m2 – 0.1200/m2, and the biomass in the new moon was 0.0002 g/m2 – 0.5044 g/m2. The indivi

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My Huong, Nguyen Thi, Ngo Dac Chung, and Le Huy Ba. "Population density of the peanut worm Siphonosoma australe australe (Keferstein, 1865) (Sipunculus: Phascolosomatidae) in the mangrove forest of Gianh river, Quang Binh province." TAP CHI SINH HOC 40, no. 2 (2018): 138–44. http://dx.doi.org/10.15625/2615-9023/v40n2.8511.

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The peanut worm, Siphonosoma australe australe (Keferstein, 1865), is a non-segmented worm, with a coelom, most live in areas of shallow water, tidal areas or the sea. Currently, the number of individuals in Peanut worm populations are declining considerably due to over-exploitation and habitat degradation. However, information on individual density and biomass of Peanut worm populations in Vietnam is still lacking, as is information on environmental factors affecting them. This study was carried out at various sites in the lower reaches of mangrove forest of the Gianh river, Quang Binh provin

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Mognon, Francelo, Aurélio Lourenço Rodrigues, Carlos Roberto Sanquetta, Ana Paula Dalla Corte, Adalberto Brito De Novaes, and Christopher Thomas Blum. "ALOCAÇÃO E MODELAGEM DA BIOMASSA EM Dendrocalamus asper." FLORESTA 45, no. 1 (2014): 1. http://dx.doi.org/10.5380/rf.v45i1.35094.

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O objetivo deste trabalho foi quantificar a biomassa seca total individual de plantas de bambu da espécie Dendrocalamus asper (Schult. & Schult. f.) Backer ex K. Heyne, visando conhecer a sua distribuição nos diferentes compartimentos, bem como avaliar modelos de biomassa em função de variáveis biométricas das plantas. Foram avaliados 20 indivíduos, coletados em Bauru, SP. As plantas amostradas foram medidas, abatidas e pesadas. A maior fração da biomassa foi observada na parte aérea, com 86%, sendo 64% para o compartimento colmo, 16% para os galhos e 6% para as folhas. Os rizomas represen

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Barbosa, Miguel, Amy E. Deacon, Maria Joao Janeiro, Indar Ramnarine, Michael Blair Morrissey, and Anne E. Magurran. "Individual variation in reproductive behaviour is linked to temporal heterogeneity in predation risk." Proceedings of the Royal Society B: Biological Sciences 285, no. 1870 (2018): 20171499. http://dx.doi.org/10.1098/rspb.2017.1499.

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Variation in predation risk is a major driver of ecological and evolutionary change, and, in turn, of geographical variation in behaviour. While predation risk is rarely constant in natural populations, the extent to which variation in predation risk shapes individual behaviour in wild populations remains unclear. Here, we investigated individual differences in reproductive behaviour in 16 Trinidadian guppy populations and related it to the observed variation in predator biomass each population experienced. Our results show that high heterogeneity in predator biomass is linked to individual be

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Nicoletti, Marcos Felipe, Ezequiel Silva, and Mireli Moura Pitz Floriani. "METODOLOGIA NÃO DESTRUTIVA PARA QUANTIFICAÇÃO DO VOLUME E BIOMASSA DO FUSTE EM REMANESCENTE FLORESTAL." Nativa 3, no. 4 (2015): 287–91. http://dx.doi.org/10.31413/nativa.v3i4.3062.

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Nesse trabalho objetivou-se propor uma metodologia não destrutiva para quantificação de volume individual, biomassa e carbono do tronco em um remanescente florestal. O estudo foi feito em cinco parcelas de 600 m². As variáveis dendrométricas mensuradas foram diâmetro à altura do peito (DAP), altura total (h), diâmetro ao longo do fuste conforme o método de Smalian. Para cada árvore mensurou-se os diâmetros de forma indireta com o dendrômetro Criterion RD 1000 e comparou-se com a mensuração de forma direta com a suta. Determinou-se o volume, biomassa e carbono por parcela. O erro relativo médio

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Kacprzyk, Magdalena, Ewa Błońska, and Tadeusz Wojas. "Deadwood, Soil and Carabid Beetle-Based Interaction Networks—An Initial Case Study from Montane Coniferous Forests in Poland." Forests 12, no. 4 (2021): 382. http://dx.doi.org/10.3390/f12040382.

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In four study plots located in silver fir and Scots pine stands in Magura National Park (southeastern Poland), the relationships between the occurrence and biomass of epigeic carabids, the volume of deadwood and soil biochemical properties were investigated. Thirteen carabid beetle species from the genera Abax, Carabus, Molops and Pterostichus were captured. Rare epigeic carabid species in the fauna of Poland and Europe, such as Carabus glabratus (Paykull), Carabus sylvestris (Panzer) and Abax schueppeli (Germar), were recorded. The number of carabid individuals and species captured as well as

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8

Zeng, WeiSheng, LianJin Zhang, XinYun Chen, ZhiChu Cheng, KeXi Ma, and ZhiHua Li. "Construction of compatible and additive individual-tree biomass models for Pinus tabulaeformis in China." Canadian Journal of Forest Research 47, no. 4 (2017): 467–75. http://dx.doi.org/10.1139/cjfr-2016-0342.

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Current biomass models for Chinese pine (Pinus tabulaeformis Carr.) fail to accurately estimate biomass in large geographic regions because they were usually based on limited sample trees on local sites, incompatible with stem volume, and not additive among components and total biomass. This study was based on mensuration data of individual-tree biomass from large samples of Chinese pine. The purpose was to construct compatible and additive biomass models using the nonlinear error-in-variable simultaneous equations and dummy variable modeling approach. This approach could ensure compatibility

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9

Movellan, A., R. Schiebel, M. V. Zubkov, A. Smyth, and H. Howa. "Quantification of protein biomass of individual foraminifers using nano-spectrophotometry." Biogeosciences Discussions 9, no. 6 (2012): 6651–81. http://dx.doi.org/10.5194/bgd-9-6651-2012.

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Abstract. The ecological role of foraminifers has been largely unknown partly owing to difficulties in determining their individual biomass, although foraminifers are abundant in surface marine sediments. The present study provides a reliable and inexpensive method for the quantification of the protein content of hard-shelled foraminifers as a measure of biomass while preserving the tests for later analyses (e.g., morphometry, stable isotopes) using nano-spectrophotometry. The protein biomass, size, and shell weight of Ammonia tepida are significantly correlated (n = 102, p < 0.001, R2 = 0.

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Movellan, A., R. Schiebel, M. V. Zubkov, A. Smyth, and H. Howa. "Protein biomass quantification of unbroken individual foraminifers using nano-spectrophotometry." Biogeosciences 9, no. 9 (2012): 3613–23. http://dx.doi.org/10.5194/bg-9-3613-2012.

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Abstract. The ecological role of foraminifers has been largely unknown partly owing to difficulties in determining their individual biomass, although foraminifers are abundant in surface marine sediments. The present study provides a reliable and inexpensive method for the quantification of the protein content of hard-shelled foraminifers as a measure of biomass while preserving the tests for later analyses (e.g. morphometry, stable isotopes), using nano-spectrophotometry. The protein biomass, is significantly correlated with size, and shell weight of Ammonia tepida (n = 102, p < 0.00001, R

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Kankare, Ville, Markus Holopainen, Mikko Vastaranta, et al. "Individual tree biomass estimation using terrestrial laser scanning." ISPRS Journal of Photogrammetry and Remote Sensing 75 (January 2013): 64–75. http://dx.doi.org/10.1016/j.isprsjprs.2012.10.003.

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Wang, Kaige, Kwang Ho Kim, and Robert C. Brown. "Catalytic pyrolysis of individual components of lignocellulosic biomass." Green Chem. 16, no. 2 (2014): 727–35. http://dx.doi.org/10.1039/c3gc41288a.

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13

Navarro-Camacho, Richard, Edwin Esquivel-Segura, Elemer Briceño-Elizondo, and Dagoberto Arias-Aguilar. "Estimating aboveground biomass for Eucalyptus saligna Sm. and Eucalyptus camaldulensis Dehn in the center region of Costa Rica." Revista Forestal Mesoamericana Kurú 11, no. 27 (2014): 22. http://dx.doi.org/10.18845/rfmk.v11i27.1775.

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The contribution of forests as climate change mitigation sinks through growth production calls for the accurate determination of their biomass production, therefore it is necessary to to evaluate variables such as weight of dry leaves, diameter at breast height (DBH) , diameter at stump height (DSH) and total height and their effect on individual aboveground biomass. The analysis was conducted at theTechnological Institute of Costa Rica (TEC) located in the province of Cartago- Sampling consisted on 31 sampling of<em> Eucalyptus saligna</em> and <em>Eucalyptus camaldulensis&l

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Wang, Weiqian, Ya Wang, Xiaoxia Li, Yan Liu, and Qiaoqiao Huang. "Individual growth, competitive ability and stand-level biomass production of invasive Sorghum halepense populations on Hainan island, China." Journal of Plant Ecology 14, no. 5 (2021): 793–804. http://dx.doi.org/10.1093/jpe/rtab032.

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Abstract Aims Sorghum halepense is a perennial invasive weed causing great harm worldwide, including some regions on Hainan island. In this study, we compared the performance between plants from outbreaking (dense stands covering large areas) and those from non-outbreaking (less dense stands covering smaller areas) populations. We also tested the hypothesis that plants with greater intraspecific competitive ability will have a lower stand biomass when grown under high-density conditions. Methods We grew plants of S. halepense individually, with an intraspecific competitor, with two interspecif

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McDonald, C. K., and R. M. Jones. "Relationships between age and biomass of individual plants and seed production in two grazed tropical legumes. 1. Derivation of relationships." Australian Journal of Agricultural Research 53, no. 2 (2002): 91. http://dx.doi.org/10.1071/ar00174.

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The distributions of individual plant age and biomass of Chamaecrista rotundifolia cv. Wynn and a mix of Stylosanthes scabra cvv. Seca and Fitzroy in grazed grass–legume pastures were examined to determine their effect on seed production. The effects of enhanced soil water conditions and severe defoliation on seed production were assessed in ungrazed plots. These experiments were part of a larger study to develop a demographic model of perennial forage legumes. The distribution of individual plant age and biomass was highly skewed towards a large number of young/small plants, with fewer old/la

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16

Vaknin, Yiftach, and Leonid Korol. "Preliminary Results on the Effects of Initial Stand Density and Supplemental Irrigation on Biomass of Eucalyptus camaldulensis Dehn. Grown as a Short Rotation Woody Crop under Semi-Arid Conditions." Agronomy 13, no. 5 (2023): 1216. http://dx.doi.org/10.3390/agronomy13051216.

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Most short rotation coppice (SRC) plantations are grown in temperate, subtropical, and tropical areas where land availability is limited. Very little is known about the potential biomass yield of Eucalyptus camaldulensis grown as SRC under semi-arid conditions with supplemental irrigation. Our objective was to maximize biomass production of E. camaldulensis under semi-arid conditions as a feedstock for biofuels by optimizing initial stem density (ISD) and irrigation amount. We tested the effects of four densities of 2500, 10,000, 40,000, and 160,000 stems per hectare, and supplemental irrigati

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Xu, Dandan, Haobin Wang, Weixin Xu, Zhaoqing Luan, and Xia Xu. "LiDAR Applications to Estimate Forest Biomass at Individual Tree Scale: Opportunities, Challenges and Future Perspectives." Forests 12, no. 5 (2021): 550. http://dx.doi.org/10.3390/f12050550.

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Accurate forest biomass estimation at the individual tree scale is the foundation of timber industry and forest management. It plays an important role in explaining ecological issues and small-scale processes. Remotely sensed images, across a range of spatial and temporal resolutions, with their advantages of non-destructive monitoring, are widely applied in forest biomass monitoring at global, ecoregion or community scales. However, the development of remote sensing applications for forest biomass at the individual tree scale has been relatively slow due to the constraints of spatial resoluti

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18

Zheng, Yujie, Weiwei Jia, Qiang Wang, and Xu Huang. "Deriving Individual-Tree Biomass from Effective Crown Data Generated by Terrestrial Laser Scanning." Remote Sensing 11, no. 23 (2019): 2793. http://dx.doi.org/10.3390/rs11232793.

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Biomass reflects the state of forest management and is critical for assessing forest benefits and carbon storage. The effective crown is the region above the lower limit of the forest crown that includes the maximum vertical distribution density of branches and leaves; this component plays an important role in tree growth. Adding the effective crown to biomass equations can enhance the accuracy of the derived biomass. Six sample plots in a larch plantation (ranging in area from 0.06 ha to 0.12 ha and in number of trees from 63 to 96) at the Mengjiagang forest farm in Huanan County, Jiamusi Cit

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Nguyen, Quynh Anh, Jianming Yang, and Hyeun-Jong Bae. "Bioethanol production from individual and mixed agricultural biomass residues." Industrial Crops and Products 95 (January 2017): 718–25. http://dx.doi.org/10.1016/j.indcrop.2016.11.040.

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20

Popescu, Sorin C. "Estimating biomass of individual pine trees using airborne lidar." Biomass and Bioenergy 31, no. 9 (2007): 646–55. http://dx.doi.org/10.1016/j.biombioe.2007.06.022.

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Liu, Guohua, Cang Hui, Ming Chen, et al. "Variation in individual biomass decreases faster than mean biomass with increasing density of bamboo stands." Journal of Forestry Research 31, no. 3 (2018): 981–87. http://dx.doi.org/10.1007/s11676-018-0796-1.

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Lian, Xugang, Hailang Zhang, Wu Xiao, et al. "Biomass Calculations of Individual Trees Based on Unmanned Aerial Vehicle Multispectral Imagery and Laser Scanning Combined with Terrestrial Laser Scanning in Complex Stands." Remote Sensing 14, no. 19 (2022): 4715. http://dx.doi.org/10.3390/rs14194715.

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Biomass is important in monitoring global carbon storage and the carbon cycle, which quickly and accurately estimates forest biomass. Precision forestry and forest modeling place high requirements on obtaining the individual parameters of various tree species in complex stands, and studies have included both the overall stand and individual trees. Most of the existing literature focuses on calculating the individual tree species’ biomass in a single stand, and there is little research on calculating the individual tree biomass in complex stands. This paper calculates the individual tree biomas

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Ter-Mikaelian, Michael, and R. A. Lautenschlager. "Predictive equations for leaf area and biomass for sugar bushes in eastern Ontario." Forestry Chronicle 77, no. 4 (2001): 643–49. http://dx.doi.org/10.5558/tfc77643-4.

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In January 1998, an extensive ice storm caused severe damage to sugar bushes in Eastern Ontario. Foliage biomass and foliage area estimates were required to assess effects of the ice storm and remedial treatments on variables related to sugar maple production. Equations were developed to predict leaf biomass of undamaged individual sugar maple trees in the ice-damaged area. The data were collected in early to mid-August 2000 in eastern Ontario. Basal diameter of all third-order branches of 22 trees from two stands was measured, along with tree DBH, total height, and height to the base of live

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Petersson, Hans, Sören Holm, Göran Ståhl, et al. "Individual tree biomass equations or biomass expansion factors for assessment of carbon stock changes in living biomass – A comparative study." Forest Ecology and Management 270 (April 2012): 78–84. http://dx.doi.org/10.1016/j.foreco.2012.01.004.

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Pérez-Cruzado, César, Christoph Kleinn, Paul Magdon, et al. "The Horizontal Distribution of Branch Biomass in European Beech: A Model Based on Measurements and TLS Based Proxies." Remote Sensing 13, no. 5 (2021): 1041. http://dx.doi.org/10.3390/rs13051041.

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Forest biomass is currently among the most important and most researched target variables in forest monitoring. The common approach of observing individual tree biomass in forest inventory is to assign the total tree biomass to the dimensionless point of the tree position. However, the tree biomass, in particular in the crown, is horizontally distributed above the crown projection area. This horizontal distribution of individual tree biomass (HBD) has not attracted much attention—but if quantified, it can improve biomass estimation and help to better represent the spatial distribution of fores

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Li, Yuanchun, Huipeng Li, Wei Zhang, et al. "The Effects of Thinning on Tree Growth and Stand Biomass in a Chronosequence of Pinus tabulaeformis Plantations in the Loess Plateau of China." Forests 14, no. 8 (2023): 1620. http://dx.doi.org/10.3390/f14081620.

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Thinning plays a vital role in controlling stand density of plantation forests to get quality wood and more ecological function. However, the specific effects of thinning on forest biomass connected with forest age are usually overlooked especially in semi-arid regions. Here, we examined the effects of thinning on individual tree growth and stand biomass in a chronosequence of 20-, 30-, 40-, and 50-year-old Chinese pine (Pinus tabulaeformis) plantations on the Loess Plateau, China. We found that under different thinning managements, both mean diameter at breast height (DBH) and tree height fol

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SUBEKTI, NIKEN, Priyantini Widiyaningrum, Dodi Nandika, and Dedy Duryadi Solihin. "COLONY COMPOSITION AND BIOMASS OF MACROTERMES GILVUS HAGEN (BLATTODEA: TERMITIDAE) IN INDONESIA." IIUM Engineering Journal 20, no. 1 (2019): 24–28. http://dx.doi.org/10.31436/iiumej.v20i1.1032.

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ABSTRACT: There is no study conducted to investigate the composition and biomass of Macrotermes gilvus Hagen in natural forest ecosystem. This study aimed to analyze the colony composition and biomass of M. gilvus Hagen colony in natural forest and to evaluate the need of food of the species as well as factors affecting it. Research was conducted in Yanlappa Sanctuary, Bogor, West Java. Termites were surveyed by collecting individual M. gilvus Hagen from different colony at different size of mound, small (0 – 0.99 m), medium (1- 1.99 m), large (? 2 m) and then were measured the number of indiv

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Harding, R. B., and D. F. Grigal. "Individual tree biomass estimation equations for plantation-grown white spruce in northern Minnesota." Canadian Journal of Forest Research 15, no. 4 (1985): 738–39. http://dx.doi.org/10.1139/x85-122.

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Prediction equations for biomass of white spruce (Piceaglauca (Moench) Voss) were developed for 115 sample trees using the allometric models Y = ADB and Y = ADBHC, where Y is mass, D is diameter at breast height, and H is total height. The addition of height to the model reduced the Sy•x for all estimates except that for biomass of branches and needles. Comparison of results to other estimation equations developed in eastern Canada showed that biomass estimates were variable. Variations in stand structure and age between natural and plantation-grown trees are possible reasons for these differe

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Zheng, Congcong, Huimin Ma, Yingzhi Gao, Hao Sun, Haijun Yang, and Carol C. Baskin. "The clonal grass Leymus chinensis overcomes salt stress by over-compensatory growth of individual ramets." Crop and Pasture Science 70, no. 11 (2019): 1004. http://dx.doi.org/10.1071/cp18530.

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Soil salinisation and overgrazing are two important factors limiting plant growth in the Songnen Grassland, Northeast China. Leymus chinensis, a dominant rhizomatous grass, resists grazing and tolerates saline–alkali stress. However, its adaptive mechanisms to the dual effects of grazing and saline–alkali stress remain largely unknown. A two-factorial field experiment was conducted in two consecutive years in the natural L. chinensis community, combining the addition of mixed saline–alkali solution (NaCl:NaHCO3:Na2CO3 1:1:1, amount 559.13 g m–2 year–1) with clipping (removal of 60% of abovegro

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de Freitas, Thaise Ricardo, Eduardo Tadeu Bacalhau, and Sibelle Trevisan Disaró. "Biovolume Method for Foraminiferal Biomass Assessment: Evaluation of Geometric Models and Incorporation of Species Mean Cell Occupancy." Journal of Foraminiferal Research 51, no. 4 (2021): 249–66. http://dx.doi.org/10.2113/gsjfr.51.4.249.

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ABSTRACT Foraminifers are widespread, highly abundant protists and active participants in marine carbon cycling. Their biomass might represent almost half of the total meiobenthic biomass in the deep sea. Foraminiferal biomass is frequently assessed through geometric models and biovolume estimates due to its non-destructive nature, which allows estimates of individuals from palaeoecological, museum, and living samples. To increase the accuracy of foraminiferal biovolume and biomass assessment we evaluate and propose geometric models for 207 foraminiferal taxa and the species’ average cell occu

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Nan, Wang, Masato Katoh, Shinichi Yamamoto, Naoyuki Nishimura, and Daisuke Hoshino. "Applications of the new Remote Sensing Method to the Forest Biomass Estimation." International Journal of Sciences Volume 2, no. 2013-08 (2013): 1–13. https://doi.org/10.5281/zenodo.3348398.

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For accurate measurement of forest biomass in the Akazawa Forest Reserve, this study analyzed texture measures derived from GeoEye-1 satellite data using the individual tree crown (ITC) method. On this basis, canopy area, tree tops and tree species of individual trees were delineated. Canopy area was used to calculate the DBH of trees in canopy layer based on canopy-DBH curve in this stand. In this study, the estimation models, between DBH and height, and between canopy area and DBH were developed by linear regression using forest survey data. Then according to the results of satellite data in

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Culver, David A., Mary M. Boucherle, David J. Bean, and James W. Fletcher. "Biomass of Freshwater Crustacean Zooplankton from Length–Weight Regressions." Canadian Journal of Fisheries and Aquatic Sciences 42, no. 8 (1985): 1380–90. http://dx.doi.org/10.1139/f85-173.

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We present equations for calculating dry weight from body length for 14 common and widely distributed taxa of crustacean zooplankters; these were generated by regression from weights of individuals chosen from the range of lengths observed for each taxon, usually three replicate weights at each of five lengths. We include regressions for ovigerous and nonovigerous cladocerans, plus nauplii, early copepodites, and adult males and females for the copepods (30 length–weight relationships) and individual weights for given stages of copepods. We calculated the seasonal variation in crustacean bioma

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Gillespie, Andrew R., H. Lee Allen, and James M. Vose. "Amount and vertical distribution of foliage of young loblolly pine trees as affected by canopy position and silvicultural treatment." Canadian Journal of Forest Research 24, no. 7 (1994): 1337–44. http://dx.doi.org/10.1139/x94-174.

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Silvicultural practices such as thinning and fertilization can affect both canopy foliage quantity and distribution, altering stand growth. The objectives of this research were to quantify the effects of tree size and silvicultural treatment on the vertical distribution of foliage of individual trees of loblolly pine (Pinustaeda L.) and to estimate foliage quantity and distribution using easily measured tree data. In three stands sampled in North and South Carolina, fertilization and (or) thinning treatments had been applied 2 years prior to sampling. A fourth stand was untreated. Nonlinear an

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Ramos-Veintimilla, Raúl, Hernán J. Andrade, Roy Vera-Velez, et al. "Allometric Models to Estimate Aboveground Biomass of Individual Trees of Eucalyptus saligna Sm in Young Plantations in Ecuador." International Journal of Plant Biology 16, no. 2 (2025): 39. https://doi.org/10.3390/ijpb16020039.

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(1) Background: Nature-based solutions (NbS), particularly through forest biomass, are crucial in mitigating climate change. While forest plantations play a critical role in carbon capture, the absence of species-specific biomass estimation models presents a significant challenge. This research focuses on developing allometric models to accurately estimate the aboveground biomass of Eucalyptus saligna Sm in Ecuador’s Lower Montane thorny steppe. (2) Methods: Conducted at the Tunshi Experimental Station of ESPOCH in Chimborazo, Ecuador, the research involved 46 trees to formulate biomass predic

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Menéndez-Miguélez, María, Guillermo Madrigal, Hortensia Sixto, Nerea Oliveira, and Rafael Calama. "Terrestrial Laser Scanning for Non-Destructive Estimation of Aboveground Biomass in Short-Rotation Poplar Coppices." Remote Sensing 15, no. 7 (2023): 1942. http://dx.doi.org/10.3390/rs15071942.

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Poplar plantations in high-density and short-rotation coppices (SRC) are a suitable way for the fast production of wood that can be transformed into bioproducts or bioenergy. Optimal management of these coppices requires accurate assessment of the total standing biomass. However, traditional field inventory is a challenging task, given the existence of multiple shoots, the difficulty of identifying terminal shoots, and the extreme high density. As an alternative, in this work, we propose to develop individual stool and plot biomass models using metrics derived from terrestrial laser scanning (

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Schiebel, R., and A. Movellan. "First-order estimate of the planktic foraminifer biomass in the modern ocean." Earth System Science Data 4, no. 1 (2012): 75–89. http://dx.doi.org/10.5194/essd-4-75-2012.

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Abstract. Planktic foraminifera are heterotrophic mesozooplankton of global marine abundance. The position of planktic foraminifers in the marine food web is different compared to other protozoans and ranges above the base of heterotrophic consumers. Being secondary producers with an omnivorous diet, which ranges from algae to small metazoans, planktic foraminifers are not limited to a single food source, and are assumed to occur at a balanced abundance displaying the overall marine biological productivity at a regional scale. With a new non-destructive protocol developed from the bicinchonini

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Czarnecka, Bożena. "Biological properties of Majnnthemum bifolium (L.) F. W. Schm. polycormones under various ecological conditions." Acta Societatis Botanicorum Poloniae 55, no. 4 (2014): 659–78. http://dx.doi.org/10.5586/asbp.1986.055.

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<em>Majanthemum bifolium</em> (L.) F. W. Schm. populations exhibit a two-level organisation. Individuals in the biological sense (polycormones) consists of a number of basic units-above-ground shoots joined by durable rhizomes. The role of the individual in the population and plant community depends on its age, size and individual area which is the exponent of the number and biomass of the produced organs. It is considered that there exist both intra- and interpopulation differences in the number of above-ground shoots and length of rhizomes as well as in the structure of the devel

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Fu, Wei, Chaoyue Niu, Chuanjing Hu, Peiling Zhang, and Yingnan Chen. "Constructing and Validating Estimation Models for Individual-Tree Aboveground Biomass of Salix suchowensis in China." Forests 15, no. 8 (2024): 1371. http://dx.doi.org/10.3390/f15081371.

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Biomass serves as a crucial indicator of plant productivity, and the development of biomass models has become an efficient way for estimating tree biomass production rapidly and accurately. This study aimed to develop a rapid and accurate model to estimate the individual aboveground biomass of Salix suchowensis. Growth parameters, including plant height (PH), ground diameter (GD), number of first branches (NFB), number of second branches (NSB) and aboveground fresh biomass weight (FW), were measured from 892 destructive sample trees. Correlation analysis indicated that GD had higher positive c

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Lin, Yi, Anttoni Jaakkola, Juha Hyyppä, and Harri Kaartinen. "From TLS to VLS: Biomass Estimation at Individual Tree Level." Remote Sensing 2, no. 8 (2010): 1864–79. http://dx.doi.org/10.3390/rs2081864.

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Zhang, Yu, and Han Y. H. Chen. "Individual size inequality links forest diversity and above-ground biomass." Journal of Ecology 103, no. 5 (2015): 1245–52. http://dx.doi.org/10.1111/1365-2745.12425.

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Hoeffner, Kevin, Cécile Monard, Daniel Cluzeau, and Mathieu Santonja. "Response of temperate anecic earthworm individual biomass to species interactions." Applied Soil Ecology 144 (December 2019): 8–11. http://dx.doi.org/10.1016/j.apsoil.2019.06.017.

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Ozdemir, Emrah, Ender Makineci, Ersel Yilmaz, et al. "Biomass estimation of individual trees for coppice-originated oak forests." European Journal of Forest Research 138, no. 4 (2019): 623–37. http://dx.doi.org/10.1007/s10342-019-01194-2.

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Forrester, David I. "Does individual-tree biomass growth increase continuously with tree size?" Forest Ecology and Management 481 (February 2021): 118717. http://dx.doi.org/10.1016/j.foreco.2020.118717.

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Sione, Silvana M. J., Hernán J. Andrade-Castañeda, Silvia G. Ledesma, Leandro J. Rosenberger, José D. Oszust, and Marcelo G. Wilson. "Aerial biomass allometric models for Prosopis affinis Spreng. in native Espinal forests of Argentina." Revista Brasileira de Engenharia Agrícola e Ambiental 23, no. 6 (2019): 467–73. http://dx.doi.org/10.1590/1807-1929/agriambi.v23n6p467-473.

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ABSTRACT Estimation of carbon stored in forest ecosystems requires accurate biomass prediction tools. The objective of this study was to determine the individual aerial biomass of Prosopis affinis and its distribution by component, to develop allometric models for the estimation of biomass and to estimate biomass expansion factors (BEF) in native forests of Entre Ríos (Argentina). Dendrometric variables on 30 individuals of different diameter classes were measured. Values of total aerial biomass and component biomass (trunk, branches larger than 5 cm in diameter and branches smaller than 5 cm

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Song, H. T., and S. Cheng. "Various growth strategies of yellow birch seedlings in multiple-abiotic factor changing environments." Plant, Soil and Environment 56, No. 5 (2010): 235–43. http://dx.doi.org/10.17221/213/2009-pse.

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Elevated CO2 concentration, light intensity and soil-sterile conditions are thought as three of the most important factors to affect plant growth and development. However, their combined physiological effect on plants is unknown so far. In this study, we measured the possible individual and combined impacts of the three factors on the growth of yellow birch seedlings (Betula alleghaniensis Britton). Our results showed that from individual perspective, elevated CO2 can significantly increase biomass attributes (e.g., leaf, root, and stem) and root biomass ratio; light intensity can significantl

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Litton, Creighton M., Michael G. Ryan, Daniel B. Tinker, and Dennis H. Knight. "Belowground and aboveground biomass in young postfire lodgepole pine forests of contrasting tree density." Canadian Journal of Forest Research 33, no. 2 (2003): 351–63. http://dx.doi.org/10.1139/x02-181.

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As much as 40% of live biomass in coniferous forests is located belowground, yet the effect of tree density on biomass allocation is poorly understood. We developed allometric equations using traditional harvesting techniques to estimate coarse root biomass for [Formula: see text]13-year-old postfire lodgepole pine trees (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.). We then used these equations, plus estimates of fine root and aboveground biomass, to estimate total tree biomass and belowground to aboveground biomass ratios in young postfire lodgepole pine stands with a wide range of

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Zhou, Zhongsheng, Yan Tang, Huaixing Xu, Juzhong Wang, Lulu Hu, and Xiaojun Xu. "Dynamic Changes in Leaf Biomass and the Modeling of Individual Moso Bamboo (Phyllostachys edulis (Carrière) J. Houz) under Intensive Management." Forests 13, no. 5 (2022): 693. http://dx.doi.org/10.3390/f13050693.

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Accurate estimations of leaf biomass are required to quantify the amount of material and energy exchanged between vegetation and the atmosphere, to enhance the primary productivity of forest stands, and to assess the contributions of vegetation towards the mitigation of global climate change. The leaf biomass of Moso bamboo (Phyllostachys edulis (Carrière) J. Houz) changes dramatically during the year owing to changes in the leaves and the growth of new shoots. Furthermore, the relationship between the leaf biomass of Moso bamboo under cutting the top of the culm and the diameter at breast hei

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Carvalho, R. L., F. Frazão, R. S. Ferreira–Châline, J. Louzada, L. Cordeiro, and F. França. "Dung burial by roller dung beetles (Coleoptera: Scarabaeinae): An individual and specific-level study." International Journal of Tropical Insect Science 38, no. 04 (2018): 373–80. http://dx.doi.org/10.1017/s1742758418000206.

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AbstractDung beetles (Coleoptera: Scarabaeinae) mediate many ecological functions that are important to maintain the ecosystem functioning of terrestrial environments. Although a large amount of literature explores the dung beetle-mediated ecological processes, little is known about the individual contribution from distinct species. Here, we aimed to examine the intra and interspecific variations in dung burial rates performed by two roller dung beetle species (Canthon smaragdulus Fabricius, 1781 and Canthon sulcatus Castelnau, 1840). Furthermore, we evaluated the relationship between dung bee

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Markert, Alexandra. "How dense is dense? Toward a harmonized approach to characterizing reefs of non-native Pacific oysters – with consideration of native mussels." NeoBiota 57 (May 29, 2020): 7–52. http://dx.doi.org/10.3897/neobiota.57.49196.

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Pacific oysters Crassostrea (Magallana) gigas have been successfully invading ecosystems worldwide. As an ecosystem engineer, they have the potential to substantially impact on other species and on functional processes of invaded ecosystems. Engineering strength depends on oyster density in space and time. Density has not yet been studied on the extent of reef structural dynamics. This study assessed abundance of naturalized Pacific oysters by shell length (SL) of live individuals and post-mortem shells at six sites over six consecutive years during post-establishment. Individual biomass, i.e.

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Markert, Alexandra. "How dense is dense? Toward a harmonized approach to characterizing reefs of non-native Pacific oysters – with consideration of native mussels." NeoBiota 57 (May 29, 2020): 7–52. https://doi.org/10.3897/neobiota.57.49196.

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Pacific oysters Crassostrea (Magallana) gigas have been successfully invading ecosystems worldwide. As an ecosystem engineer, they have the potential to substantially impact on other species and on functional processes of invaded ecosystems. Engineering strength depends on oyster density in space and time. Density has not yet been studied on the extent of reef structural dynamics. This study assessed abundance of naturalized Pacific oysters by shell length (SL) of live individuals and post-mortem shells at six sites over six consecutive years during post-establishment. Individual biomass, i.e.

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