Ground vegetation exceeds tree seedlings in early biomass production and carbon stock on an ash-fertilized cut-away peatland

2009 ◽  
Vol 33 (9) ◽  
pp. 1108-1115 ◽  
Author(s):  
Noora Huotari ◽  
Eila Tillman-Sutela ◽  
Eero Kubin
Keyword(s):  
Biomass Production ◽  
Carbon Stock ◽  
Ground Vegetation ◽  
Tree Seedlings

scholarly journals Effect of Harvesting and Non-Harvested Forest Management on Carbon Stocks

2018 ◽  
pp. 152-164
Author(s):  
Bhagat Suberi ◽  
Krishna R. Tiwari ◽  
D. B. Gurung ◽  
Roshan M. Bajracharya ◽  
Bishal K. Sitaula
Keyword(s):  
Forest Management ◽  
Carbon Stock ◽  
Carbon Stocks ◽  
Total Carbon ◽  
Ground Vegetation ◽  
Soil Core ◽  
C Stocks ◽  
Standing Trees ◽  
Below Ground ◽  
Carbon Determination

Forest management is an important strategy which can significantly contribute to climate change mitigation through appropriate care of forest resources. This study was carried out to evaluate two systems of carbon stock accumulation; a harvested forest verses a non-harvested forest. Both the above-ground and below-ground cabon stocks were assessed. Biomass of standing trees, poles and ground vegetation was measured for carbon determination in defined areas using an allometric relationship. Soil (core and composite) samples were collected from 0 –20, 20 – 40 cm and below 40 cm depths, assessed for density, carbon concentration, and profiles C-stocks were estimated. ANOVA and t-tests were performed to compare the effects of forest management on total carbon stocks. The results showed that the total above ground timber carbon (AGTC) was higher in non-harvested forest (220±154 t/ha–1) than in harvested forest (128.6±86.1 t/ha-1). The overall mean carbon stock was higher in the non-harvested forest (357±179) than in the harvested forest (257.4±93.1), which was statistically significant (p=0.031, >0.05). However, the soil organic carbon (SOC) pool was observed to be higher in the harvested forest (101.5±36.1) than in non-harvested forest (89.6±26.5).

scholarly journals Linking Forest Vegetation and Soil Carbon Stock in Northwestern Russia

Forests ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 979
Author(s):  
Natalia Lukina ◽  
Anastasia Kuznetsova ◽  
Elena Tikhonova ◽  
Vadim Smirnov ◽  
Maria Danilova ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Tree Species ◽  
Carbon Stock ◽  
Carbon Stocks ◽  
Ground Vegetation ◽  
Vegetation Composition ◽  
Soil Carbon Stock ◽  
Soil Carbon Stocks ◽  
Northwestern Russia ◽  
Birch Forests

Research Highlights: It was found that both tree species and ground vegetation affected soil carbon stock in boreal forests. Carbon stocks in the mineral layers were related negatively to the C/N ratio in the organic horizon and pine proportion in the growing stock volume, and positively to the share of herbaceous plants and the proportion of spruce. Background and Objectives: Existing research showed the effects of tree species on soil carbon stocks in organic horizons, but these effects were less clear in mineral horizons. Little is known about the effects of ground vegetation on soil carbon stock. This study aims to identify associations between the forest vegetation composition and soil carbon stocks in northwestern Russia. Materials and Methods: Research data from 109 pine, spruce and birch forests of different Cajander’s and Sukachev’s types with different functional compositions of ground vegetation at autonomous positions are discussed in this paper. The V-test was used to assess the impact of vegetation on soil carbon stocks. Results: Variations in Carbon stocks in the mineral layers were associated with the soil types and vegetation composition. Carbic Albic Podzols accumulated the least amount of carbon in the mineral profile. Carbon stock in the mineral layers in pine forests was considerably lower than in spruce and birch forests. Spruce forests with the highest share of herbaceous plants were characterised by the highest carbon stocks in the mineral layers, while pine forests with dwarf shrubs and green mosses accumulated more carbon in the organic layers, but carbon stocks in the mineral layers here were the lowest. Conclusions: Differences in soil carbon stocks between and within northern and middle taiga in northwestern Russia were associated not only with soil types but also with the proportions of forest types dominated by different tree species and ground vegetation functional groups.

scholarly journals Carbon stock in aboveground biomass of vegetation at the High Tatra Mts. twelve years after disturbance

2017 ◽  
Vol 63 (2-3) ◽  
pp. 142-151 ◽  
Author(s):  
Bohdan Konôpka ◽  
Jozef Pajtík ◽  
František Máliš ◽  
Vladimír Šebeň ◽  
Miriam Maľová
Keyword(s):  
Aboveground Biomass ◽  
Carbon Flux ◽  
Carbon Stock ◽  
Large Scale ◽  
Ground Vegetation ◽  
Biomass Estimation ◽  
Wind Disturbance ◽  
Plant Groups ◽  
Tatra Mts ◽  
Dynamic Growth

AbstractThe paper focused on the estimation of aboveground biomass and its carbon stock in the vegetation cover on the territory of the High Tatras twelve years after a large-scale wind disturbance. Besides biomass quantification of main plant groups (i.e. trees and ground vegetation) we considered plant components with special regard to carbon rotation rate. The measurements were performed on two transects each containing 25 plots sized 4 × 4 m. Height and stem diameter of all trees on the plots were measured and used for biomass estimation. To quantify the biomass of ground vegetation, six subplots sized 20 × 20 cm were systematically placed on each plot and the aboveground biomass was harvested. The plant material was subjected to chemical analyses to quantify its carbon concentration. The study showed that while the wind disturbance caused dramatic decrease of carbon stock, young post-disturbance stands with abundant ground vegetation, represented large carbon flux via litter fall. Twelve years after the wind disturbance, the trees contributed to carbon stock more than the ground vegetation. However, the opposite situation was recorded for the carbon flux to litter that was related to the dominance of annual plants in the above-ground biomass of ground vegetation. The carbon stock in the biomass of young trees and ground vegetation represented about 8,000 kg per ha. The young stands manifested a dynamic growth, specifically the aboveground biomass increased annually by one third. The results confirmed different carbon regimes in the former old (pre-disturbance) and sparse young (post-disturbance) stands.

scholarly journals Subirrigation of Quercus rubra Seedlings: Nursery Stock Quality, Media Chemistry, and Early Field Performance

HortScience ◽  
2008 ◽  
Vol 43 (7) ◽  
pp. 2179-2185 ◽  
Author(s):  
Mindy L. Bumgarner ◽  
K. Francis Salifu ◽  
Douglass F. Jacobs
Keyword(s):  
Biomass Production ◽  
Aboveground Biomass ◽  
Quercus Rubra ◽  
Field Performance ◽  
Dry Weight ◽  
Nutrient Content ◽  
Forest Tree ◽  
Red Oak ◽  
Tree Seedlings ◽  
Northern Red Oak

Container seedling production systems for forest tree nurseries are challenged by the need for judicious water consumption. Subirrigation systems may provide an alternative to overhead systems by mitigating water use, yet remain relatively untested for propagation of forest tree seedlings. We evaluated effects of overhead versus subirrigation under varying media (40:60, 60:40, and 80:20 peat:perlite) and fertilization (0 or 1.2 g nitrogen/plant) regimes on nursery development and first-year field performance of northern red oak (Quercus rubra L.) seedlings. Fertilization increased aboveground biomass production and nutrient content, but decreased root dry weight. Relative to overhead-irrigated seedlings, subirrigation increased red oak seedling aboveground biomass production as well as above- and belowground nitrogen content under fertilized conditions. Media had no effect on plant response. Subirrigation increased electrical conductivity (5 dS·m−1 greater) and decreased pH in the upper media zone (0 to 5 cm from top), whereas the opposite effect was found in the lower zone. Nursery fertilization was associated with reduced field survival and growth, which may have been the result of transplant stress resulting from higher shoot:root. Subirrigated seedlings had greater field diameter growth. Our results suggest that subirrigation could serve as a viable alternative to overhead systems in container propagation of hardwood seedlings.

Shifts in biomass and nitrogen allocation of tree seedlings in response to root-zone temperature

2014 ◽  
Vol 62 (3) ◽  
pp. 205 ◽  
Author(s):  
Suzy Y. Rogiers ◽  
Jason P. Smith ◽  
Bruno P. Holzapfel ◽  
Gurli L. Nielsen
Keyword(s):  
Biomass Production ◽  
Root Zone ◽  
Leaf Gas Exchange ◽  
Soluble Sugars ◽  
The Other ◽  
Tree Seedlings ◽  
Deciduous Species ◽  
Root Zone Temperature ◽  
N Partitioning ◽  
Warm Soil

Root-zone warming of trees can result in an increase in biomass production but the mechanisms for this increase may differ between evergreen and deciduous species. The leaf gas exchange, carbohydrate and nitrogen (N) partitioning of two Australian evergreens, Acacia saligna and Eucalyptus cladocalyx, were compared to the deciduous Populus deltoides and Acer negundo after exposure to cool or warm soil during spring. The warm treatment stimulated aboveground biomass production in all four species; however, the form of this increase was species dependent. Compared with the evergreens, soluble sugars were mobilised from the above- and belowground components to a greater extent in the deciduous species, especially during root-zone warming. Photosynthesis, stomatal conductance and transpiration were increased in the warm soil treatment for the two evergreens and P. deltoides only. In P. deltoides and A. saligna the new fine roots contained greater starch concentrations when grown in warm soil but only in A. negundo was new root growth greater. Compared with the other three species, the leguminous A. saligna contained the highest N and most of this was concentrated in the phyllodes of warmed plants with no apparent mobilisation from the existing biomass. In the other evergreen, E. cladocalyx, the existing leaves and stems were a N source for new growth, while in the two deciduous species N was derived from the woody components and structural roots. These data show that the carbohydrate movement and N partitioning patterns in response to soil warming differ between perennial and deciduous plants and are likely responsible for the different forms of biomass accumulation in each of these species.

scholarly journals EFFECT OF INCREASING THE FERTILIZER DOSE ON BIOMASS PRODUCTION OF Eucalyptus dunnii Maiden

FLORESTA ◽  
2020 ◽  
Vol 50 (2) ◽  
pp. 1353
Author(s):  
Grasiele Dick ◽  
Mauro Valdir Schumacher ◽  
Elias Frank de Araujo
Keyword(s):  
Biomass Production ◽  
Central Region ◽  
Carbon Stock ◽  
Rio Grande ◽  
Biomass Carbon ◽  
Dose Increase ◽  
Rio Grande Do Sul ◽  
Mineral Fertilization ◽  
Eucalyptus Dunnii ◽  
Reducing Costs

With the recent expansion of Eucalyptus dunnii Maiden cultivation in central region of Rio Grande do Sul state, recurrent questions arise from both research and operational silviculture, especially in relation to mineral fertilization. The objective of this study was to test the effect of fertilizer dose increase (150, 225 and 450 g plant-1 of N-P2O5-K2O, in 24:00:24 proportion) on the biomass production, carbon stock and nutrients in Eucalyptus dunnii trees cultivated in dystrophic Inceptisol, in central region of Rio Grande do Sul state, Brazil. This study revealed that there is no effect of the fertilizer dose increase on the accumulation of biomass, carbon and nutrients in components of Eucalyptus dunnii trees. The nutrients were more concentrated in leaves; in stemwood there was greater stock of carbon and potassium; in branches and stembark the calcium prevailed. Due to the significant biomass production, regardless of fertilizer dose, aiming at reducing costs and environmental impacts, it is recommended to apply mineral fertilization with 150 g plant-1 of N-P2O5-K2O, in 24:00:24 proportion, in Eucalyptus dunnii stand cultivated in dystrophic Inceptisol, in central region of Rio Grande do Sul state, Brazil.

scholarly journals Evaluation of Melia Dubia for its Biomass Production, Carbon Stock, Carbon Sequestration and Economic Returns in Agroforestry System

2021 ◽  
pp. 46-54
Author(s):  
V. Ishwarya Laxmi ◽  
A. Krishna ◽  
A. Madhavi Lata ◽  
A. Madhavi ◽  
Y. S. Parameswari
Keyword(s):  
Carbon Sequestration ◽  
Biomass Production ◽  
Carbon Stock ◽  
Carbon Dioxide Sequestration ◽  
Foxtail Millet ◽  
Agroforestry System ◽  
Economic Returns ◽  
Net Returns ◽  
Sole Crop ◽  
Melia Dubia

A field experiment was carried out to estimate biomass production, carbon stock, carbon sequestration and economic performance of Melia dubia under agri-silviculture system. This experiment was laid out in a Split design and replicated thrice, treatments comprised of two main plots (Clones) M I MTP-I M II MTP-II and seven subplots(Intercrops) T 1 Finger millet , T 2 Foxtail millet, T 3 Pearl millet, T 4 Greengram, T 5 Blackgram, T 6 Cowpea, T 7 Only trees. Sole crop without trees are maintained. Results showed that MTP-I clone recorded higher volume, biomass production, carbon stock, carbon dioxide sequestration in agri-silviculture system when compared to MTP-II and sole crop. In terms of income wise MTP-I recorded higher gross returns, net returns and B:C ratio than MTP-II. Incase of intercrops, blackgram registered higher net returns and B:C ratio than other intercrops.

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