scholarly journals Carbon Sequestration Potential of Forest Invasive Species: A Case Study with Acacia dealbata Link

Resources ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 51
Author(s):  
Leonel Nunes ◽  
Mauro Raposo ◽  
Catarina Meireles ◽  
Carlos Gomes ◽  
Nuno Ribeiro
Keyword(s):  
Economic Implications ◽  
Acacia Dealbata ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Production Forests ◽  
Negative Impacts ◽  
Mitigate Climate Change ◽  
Control And Eradication

Biological invasions are of complex solution, consuming resources for their control and eradication. However, in many of the documented processes that are available, this is an attempt with no solution in sight. The possibility of increasing the pressure over these species while creating value chains has been presented as a method for ensuring the sustainability of their control and eradication processes. In the case of invasive forest species in Portugal, such as Acacia dealbata Link, this control is becoming increasingly important. In addition to the negative impacts on biodiversity, the proliferation of this species has economic implications due to its competition with forest production species such as Pinus pinaster Aiton and Eucalyptus globulus Labill. Another critical aspect to be considered is the increase of the risk of rural fires, which is enhanced by the accumulation of low-value biomass around production forests. In this work, the possibility of using this species as a vehicle for the capture and sequestration of carbon in the medium and long-term was evaluated from a perspective of providing ecosystem services as a measure to mitigate climate change. However, due to its highly heliophilous character, it was found that the growth capacity of this species is rapidly conditioned by the position of each tree within a stand, not being able to maintain that capacity in the medium and long term.

Testing the impact of community composition on the productivity of a cool temperate eucalypt forest: the Australian Forest Evenness Experiment (AFEX)

2020 ◽  
Vol 68 (4) ◽  
pp. 310
Author(s):  
Melissa R. Gerwin ◽  
Rose Brinkhoff ◽  
Travis Britton ◽  
Meagan Porter ◽  
Ruth K. Mallett ◽  
...  
Keyword(s):  
Community Composition ◽  
Field Experiments ◽  
Forest Growth ◽  
Plant Community Composition ◽  
Ecological Processes ◽  
Acacia Dealbata ◽  
Carbon Sequestration Potential ◽  
Eucalypt Forest ◽  
Sequestration Potential ◽  
The Impact

Understanding the factors controlling productivity is crucial for modelling current and predicting future forest growth and carbon sequestration potential. Although abiotic conditions exert a strong influence on productivity, it is becoming increasingly evident that plant community composition can dramatically influence ecosystem processes. However, much of our understanding of these processes in forests comes from correlative studies or field experiments in short-statured, short-lived vegetation. Here, we present the background, design and implementation success of the Australian Forest Evenness Experiment (AFEX), which was designed to investigate the influence of community composition on the processes that contribute to forest productivity. Eighty 25 × 25-m plots, covering 5 ha in a logged, burnt forest coupe in south-eastern Tasmania were sown with four tree species, namely Eucalyptus delegatensis R.T.Baker, E. regnans F.Muell., Acacia dealbata Link and Pomaderris apetala Labill., in varying combinations to provide a range of evenness levels with each of the four species as target dominant. Despite some differences between sown composition and realised composition 1year after sowing, a substantial range of community evenness and local neighbourhood densities and compositions existed in the experiment. Thus, this site provides a unique opportunity to determine the influence of local neighbourhood composition on a range of ecological processes.

scholarly journals Vibration Analysis and Empirical Law Definition for Different Equipment in a Civil Construction

2020 ◽  
Vol 10 (14) ◽  
pp. 4689 ◽  
Author(s):  
Rafael Rodríguez ◽  
Marc Bascompta
Keyword(s):  
Maximum Velocity ◽  
Poor Quality ◽  
International Standards ◽  
Economic Implications ◽  
Standard Values ◽  
Historical Sites ◽  
The Impact ◽  
Term Maintenance

The potential affection of any construction, and especially historical sites, is of great concern for their long-term maintenance and stability. This study has determined the vibration behavior in poor-quality rock mass conditions generated by some of the most typical equipment used in construction: excavator, ripper, ripper vibrator, hydraulic hammer, bulldozer and vibrating roller. Several empirical expressions are proposed to know the maximum velocity at different distances for each type of equipment, taking into account the intensity of the vibration generated and its pattern. A general equation has also been defined to determine the vibration propagation along the distance at a construction site, based on the impact generated by all the possible vibration elements, exogenous and endogenous, including machinery working individually or in any possible combination and number. On the other hand, the maximum allowable velocity in the case study is also discussed and compared to international standards, stating some recommendations. It would be very important to have a clear legislation in this regard due to the high density of sensitive constructions in Spain and the economic implications of applying too high or too low standard values.

Geochemical behavior of ultramafic waste rocks with carbon sequestration potential: a case study of the Dumont Nickel Project, Amos, Québec

2017 ◽  
Vol 24 (12) ◽  
pp. 11734-11751 ◽  
Author(s):  
El Hadji Babacar Kandji ◽  
Benoit Plante ◽  
Bruno Bussière ◽  
Georges Beaudoin ◽  
Pierre-Philippe Dupont
Keyword(s):  
Carbon Sequestration ◽  
Geochemical Behavior ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Waste Rocks

scholarly journals Carbon Sequestration in Support of the “4 per 1000” Initiative Using Compost and Stable Biochar from Hazelnut Shells and Sunflower Husks

Processes ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 764
Author(s):  
Klaus Mikula ◽  
Gerhard Soja ◽  
Cristina Segura ◽  
Alex Berg ◽  
Christoph Pfeifer
Keyword(s):  
Carbon Sequestration ◽  
Management Strategies ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Carbon Sequestration Potential ◽  
Carbon Neutrality ◽  
Sequestration Potential ◽  
Corylus Avellana L ◽  
Hazelnut Shells

The achievement of carbon neutrality till 2050 will require the deployment of negative carbon emission technologies like the production and soil incorporation of biochar, produced from pyrolyzed plant-based residues. The carbon sequestration potential of biochar (BC) from hazelnut (Corylus avellana L.) shells (HNS) and sunflower (Helianthus annuus L.) husks (SFH) was evaluated when the biomass was carbonized in a fixed bed reactor, in a rotary kiln and in a screw reactor. In all tested reactors, higher temperatures (>500 °C) and longer retention times increased the C concentration and stability of the biochar, with negligible effects of the reactor type and feedstock. A national case study was developed for Austria concerning the potential use of SFH- and HNS-BC in combination with compost for reaching the “4 per mille” objective. An annual soil organic carbon increase of 2.5 Mt C would be needed, requiring amendment rates of 2.2 Mt C a−1 for all annual crop areas and 0.3 Mt C a−1 for all vineyards and orchards. If compost only were used, the annual cost would be about 200 EUR ha−1 but short-term re-mineralization would have to be considered. If the more recalcitrant biochar were used only, about 2.3 t BC ha−1 would be needed at a cost of 1400–1870 EUR ha−1. The study shows in principle the feasibility of applying compost–biochar mixtures for achieving the “4 per mille” objective but in practice, supplemental soil management strategies for sequestering C will be required.

Modelling of soil carbon sequestration by use of rice-straw mulching in two citrus orchards in Valencia (Spain)

2021 ◽  
Author(s):  
Simone Pesce ◽  
Enrico Balugani ◽  
Josè Miguel De Paz ◽  
Fernado Visconti ◽  
Carlotta Carlini ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Soil Carbon ◽  
Soil Water ◽  
Rice Straw ◽  
Agricultural Practices ◽  
Soil Carbon Sequestration ◽  
Carbon Sequestration Potential ◽  
Straw Mulch ◽  
Sequestration Potential

<p>In the context of sustainable development, agriculture holds a promising potential for CO2 sequestration and, accordingly, for the mitigation of climate change. This potential capacity can be developed through the adoption of less conventional farming techniques, such as the mulching of the topsoil with agricultural by-products where they are available, e.g., rice straw in the semiarid Valencia province (Eastern Spain). In general, the use of straw as mulching material has been found beneficial for soil quality as it reduces temperature excursions both daily and yearly, increases soil water content overall, and increases the activity of microbes. Moreover, it encourages the binding of organic matter and mineral particles into macro and micro aggregates, leading to: enhancement of the aggregate stability, restoration of stable C, and increase in the soil organic carbon (SOC) content and, thus, soil carbon sequestration. SOC dynamic models, like the widely used RothC, are useful to assess the soil carbon sequestration potential of different agricultural practices and to project their effects on the long term. However, there is a lack of studies focusing on the modelling of straw mulch effects on SOC dynamics.</p><p>Our work aimed at modelling the rice straw mulch degradation and its effects on the SOC dynamics in two citrus orchards, as observed during a short-term field experiment (2 years). In the orchards, the straw mulch was applied to the inter-rows once a year, and its effects on soil water content, temperature, respiration rate, and SOC contents (amidst other chemical and biological parameters) were compared with bare soil and natural grass formation</p><p>The RothC carbon dynamics model was modified by including the straw mulch effects on SOC dynamics as observed on the field and, additionally, by modelling the soil water dynamics with the HYDRUS1D model. The SOC pools for the RothC simulations were assessed following the fractionation of Zimmerman et al. (2007). The model parameters were calibrated with the soil respiration data.</p><p>The straw mulch model can be used for the estimation of the effects of the rice straw on the SOC in the short term. By changing the soil, climatic and agricultural practices inputs, the model can be applied to different fields in semiarid conditions, allowing the assessment of the soil carbon sequestration potential of different agricultural practices. However, the model still needs to be verified on long term field studies to deliver reliable long term sequestration projections.</p>

Assessing the carbon sequestration potential of managed forests: a case study from temperate Australia

2006 ◽  
Vol 43 (6) ◽  
pp. 1149-1159 ◽  
Author(s):  
S. H. ROXBURGH ◽  
S. W. WOOD ◽  
B. G. MACKEY ◽  
G. WOLDENDORP ◽  
P. GIBBONS
Keyword(s):  
Carbon Sequestration ◽  
Managed Forests ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential

scholarly journals ENVIRONMENTAL MANAGEMENT PROSPECTS OF INDUSTRIAL AREA: A CASE STUDY ON MCIE, INDONESIA

2018 ◽  
Vol 19 (0) ◽  
pp. 208-216 ◽  
Author(s):  
Sjaifuddin Sjaifuddin
Keyword(s):  
Economic Growth ◽  
Environmental Management ◽  
Industrial Area ◽  
Key Factors ◽  
Industrial Estate ◽  
Industrial Parks ◽  
The Future ◽  
Negative Impacts

In addition to promote economic growth, industrialization had caused negative impacts on the environment. It was required a lot of efforts to overcome negative impacts, although the results were still not as expected. Starting from this condition this research aimed to design an environmental management prospect of Modern Cikande Industrial Estate (MCIE) in Serang, Banten Province, Indonesia. Environmental management prospect designed using a prospective analysis. This technique used to explore various possibilities in the future in environmental management of MCIE based on eco-industrial parks (EIPs). The analysis showed that there were 5 (five) key factors determine the success of environmental management of MCIE: pollution control, investment security, availability of infrastructure, industrial tourism, and competitiveness of industry. The most implementable scenario in MCIE environmental management in the future was the new urbanism. This scenario oriented on the long term balance between economic growth and environmental protection.

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