Bioelectric parameters of Pinus silvestris forest ecosystems

2021 ◽  
Vol 6 (2) ◽  
pp. 59-63
Author(s):  
Iryna Rusyn ◽  
◽  
Vasil Dyachok ◽  
Keyword(s):  
Renewable Energy ◽  
Forest Ecosystems ◽  
Moisture Level ◽  
Bioelectric Potential ◽  
Pinus Silvestris ◽  
Seasonal Fluctuations ◽  
Soil Humidity ◽  
Positive Effect

The article presents the study of the bioelectric potential of forest biotopes of Pinus silvestris to evaluate the possibility of their usage as a bioelectricity source. The increase of bioelectric potential in dry soils independent of moisture level was revealed. The positive effect of soil humidity on the generation of bioelectric potential was shown. Insignificant daily and seasonal fluctuations of bioelectric parameters of forest biotopes open their prospects as an important source of renewable energy.

scholarly journals PENGARUH KONSUMSI ENERGI DAN REZIM TERHADAP PERTUMBUHAN EKONOMI DI INDONESIA

2019 ◽  
Vol 1 (2) ◽  
pp. 401
Author(s):  
Zakiah Husna ◽  
Idris Idris
Keyword(s):  
Economic Growth ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Time Series Data ◽  
Secondary Data ◽  
Series Data ◽  
Renewable Energy Consumption ◽  
Energy Regime ◽  
Negative Effect ◽  
Positive Effect

This study aims to determine the effect of energy consumption and regime on economic growth in Indonesia. The data used is secondary data in the form of time series data from 1988-2017, with documentation and library study data collection techniques obtained from relevant institutions and agencies. the variables used are economic growth (GDP), non-renewable energy consumption, renewable energy consumption and regime, the research methods used are: (1) Multiple Regression Analysis (OLS), (2) Classical Assumption Test results of research stating that: ( 1) non-renewable energy consumption has a positive effect on economic growth in Indonesia. (2) consumption of renewable energy has a positive effect on economic growth in Indonesia. (3) the energy regime has a negative effect on economic growth in Indonesia. (4) non-renewable energy consumption, renewable energy consumption and energy regime have a significant effect on economic growth in Indonesia. so only the energy regime has a negative effect on economic growth in Indonesia.

(Un)fit for 55! Ohne eine verschärfte Governance-Verordnung sind die Klimaziele 2030 nicht zu erreichen

IG ◽  
2021 ◽  
Vol 44 (4) ◽  
pp. 287-300
Author(s):  
Michèle Knodt ◽  
Rainer Müller ◽  
Sabine Schlacke ◽  
Marc Ringel
Keyword(s):  
European Union ◽  
Energy Efficiency ◽  
Renewable Energy ◽  
Regulatory Action ◽  
The European Union ◽  
Soft Governance ◽  
Energy Efficiency Targets ◽  
Positive Effect ◽  
The Eu

The European Commission's “Fit for 55” package of July 2021 provides for a significant increase in renewable energy and energy efficiency targets in the European Union (EU). However, the EU’s competences in the energy sector are severely limited and subject to sovereignty. Already in 2018, the EU adopted a Governance Regulation that provides for a hardening of the otherwise only soft governance in the areas of renewable energies and energy efficiency due to the lack of European competences. It is intended to ensure that the Commission's recommendations for improving national energy and climate plans are implemented by the member states. An analysis of the quality of implementation of these recommendations now shows that this has a positive effect in areas with harder soft governance but still needs improvement. Increasing the targets of regulatory action cannot be successful without revising the Governance Regulation and hardening soft governance along with it. Otherwise, the EU is not fit for its 55 percent target in 2030.

scholarly journals The Impact of Purchasing Group on the Profitability of Companies Operating in the Renewable Energy Sector—The Case of Poland

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6588
Author(s):  
Grzegorz Zimon ◽  
Dominik Zimon
Keyword(s):  
Renewable Energy ◽  
Small And Medium Enterprises ◽  
Energy Sector ◽  
Financial Situation ◽  
Financial Liquidity ◽  
Medium Enterprises ◽  
Purchasing Group ◽  
The Impact ◽  
Research Period ◽  
Positive Effect

Purchasing groups are multi-entity organisations that operate in practically every sector. Their greatest role is to improve the financial situation of small and medium enterprises (SMEs). In the case of enterprises operating in the sectors that are just developing, especially those belonging to SMEs, it is particularly difficult to obtain favourable financial results. In Poland, such sectors include, among others, renewable energy, which is slowly developing, but has not yet reached the size set in climate policy. The purpose of the paper is to present how functioning under group purchasing organisations (GPOs) affects the profitability of companies related to the renewable energy sector. For the example of the largest industry purchasing groups, the analysis showed that high profitability results were achieved by enterprises operating in them compared to entities operating independently in the market. In total, 71 enterprises operating in the sector related to the renewable energy sector in Poland were analysed. The enterprises were divided into units operating in the purchasing groups of 46 enterprises, and those that operate independently in the market of 25 enterprises. The research period covered the years 2016–2019. The analysis showed that the scale effect allowed companies to increase profits and had a positive effect on their financial liquidity. The research proved that in the case of commercial enterprises operating in the sector related to renewable energy, functioning within the industry purchasing group allowed high profitability and financial liquidity. There is a dependency that the liquidity increases with a growth in profitability.

scholarly journals Effect of different drip irrigation regimes on tuber and starch yield of potatoes

2018 ◽  
Vol 64 (No. 11) ◽  
pp. 546-550
Author(s):  
Petr Elzner ◽  
Miroslav Jůzl ◽  
Pavel Kasal
Keyword(s):  
Drip Irrigation ◽  
Field Trials ◽  
Soil Humidity ◽  
Water Capacity ◽  
Irrigation Regimes ◽  
Available Water Capacity ◽  
Small Plot ◽  
The Subject ◽  
Starch Yield ◽  
Positive Effect

Small-plot field trials monitored the effect of drip irrigation of potatoes on tuber and starch yield. The trials were performed at two different localities in two trial years, 2016 and 2017. The subject of the evaluation included two cultivars with different vegetation periods (the very early cv. Monika and the semi-early cv. Jolana). Four repeated trials studied 4 irrigation treatments according to the available water capacity (AWC) of the soil, i.e. without irrigation, irrigation when soil humidity decreased below 60, 65 and below 70% AWC. All monitored parameters reflected a positive effect of irrigation in comparison to the non-irrigated control. The Žabčice locality showed the highest tuber and starch yields mostly after medium-intensity irrigation. The Valečov locality achieved the highest tuber and starch yields after the highest-intensity irrigation. Subject to the locality and the cultivar, the recommendation is to introduce automatic irrigation start when the soil humidity drops to 65% AWC for heavy soils and 70% AWC for medium heavy soils.

Local-level Nudging for Renewables in Slovenia: Organisational Aspects and Legal Limitations

2020 ◽  
Vol 18 (3) ◽  
pp. 523-556
Author(s):  
Luka Martin Tomazic
Keyword(s):  
Renewable Energy ◽  
Local Level ◽  
State Level ◽  
Legal Framework ◽  
Local Energy ◽  
The European Union ◽  
Policy Goals ◽  
National Legal System ◽  
The Republic ◽  
Positive Effect

Proliferation of renewable energy is high on the agenda of the European Union. In it, local government plays an important role. Besides traditional regulatory approaches such as legislation, nudging could have a positive effect on achieving the desired policy goals. This article analyses the legal framework within which the local-level practice of nudging is embedded in the Republic of Slovenia. Since EU-level legislation and ECHR aspects are analysed as well, the application of findings is broader than merely the national legal system. Nudging could be performed either by using the existing infrastructure or through the creation of local energy organisations. Three main groups of legal limitations are identified, namely state-level limitations, GDPR-related concerns and constitutional or human rights considerations. Defaults and individualised informing are emphasized as two of the most promising nudge-types in the field of renewable energy.

scholarly journals The relationship between renewable energy and sustainable development in Indonesia

2021 ◽  
Vol 922 (1) ◽  
pp. 012034
Author(s):  
G Syamni ◽  
Wardhiah ◽  
Zulkifli ◽  
M J A Siregar ◽  
Y A Sitepu
Keyword(s):  
Economic Growth ◽  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Secondary Data ◽  
Distributed Lag ◽  
Autoregressive Distributed Lag ◽  
Short And Long Term ◽  
The Relationship ◽  
Positive Effect

Abstract This paper is conducted to examine the relationship between the use of renewable energy and FDI in Indonesia. The data used in this study is secondary data that has been published by the World Bank and accessed in www.Data.worldbank.org. periode 2004-2019. The data analysis method used is the autoregressive distributed lag (ARDL) method. The results of the study found that the use of renewable energy in the short and long term has a positive effect on Indonesia’s economic growth. Meanwhile, the same thing is also shown from the FDI variable in the short term and long term which has a significant positive effect on economic growth and has a positive effect on economic growth. Finally, with this finding, it is concluded that both the short and long term the Indonesian government needs to make a breakthrough to explore renewable energy sources for economic growth.

scholarly journals Response of litter decomposition and the soil environment to one-year nitrogen addition in a Schrenk spruce forest in the Tianshan Mountains, China

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhaolong Ding ◽  
Xu Liu ◽  
Lu Gong ◽  
Xin Chen ◽  
Jingjing Zhao ◽  
...  
Keyword(s):  
Nitrogen Deposition ◽  
Litter Decomposition ◽  
Forest Ecosystems ◽  
N Deposition ◽  
Tianshan Mountains ◽  
Control Treatment ◽  
N Addition ◽  
Soil Environment ◽  
N Application ◽  
Positive Effect

AbstractHuman activities have increased the input of nitrogen (N) to forest ecosystems and have greatly affected litter decomposition and the soil environment. But differences in forests with different nitrogen deposition backgrounds. To better understand the response of litter decomposition and soil environment of N-limited forest to nitrogen deposition. We established an in situ experiment to simulate the effects of N deposition on soil and litter ecosystem processes in a Picea schrenkiana forest in the Tianshan Mountains, China. This study included four N treatments: control (no N addition), low N addition (LN: 5 kg N ha−1 a−1), medium N addition (MN: 10 kg N ha−1 a−1) and high N addition (HN: 20 kg N ha−1 a−1). Our results showed that N addition had a significant effect on litter decomposition and the soil environment. Litter mass loss in the LN treatment and in the MN treatment was significantly higher than that in the control treatment. In contrast, the amount of litter lost in the HN treatment was significantly lower than the other treatments. N application inhibited the degradation of lignin but promoted the breakdown of cellulose. The carbon (C), N, and phosphorus (P) contents of litter did not differ significantly among the treatments, but LN promoted the release of C and P. Our results also showed that soil pH decreased with increasing nitrogen application rates, while soil enzyme activity showed the opposite trend. In addition, the results of redundancy analysis (RDA) and correlation analyses showed that the soil environment was closely related to litter decomposition. Soil enzymes had a positive effect on litter decomposition rates, and N addition amplified these correlations. Our study confirmed that N application had effects on litter decomposition and the soil environment in a N-limited P. schrenkiana forest. LN had a strong positive effect on litter decomposition and the soil environment, while HN was significantly negative. Therefore, increased N deposition may have a negative effect on material cycling of similar forest ecosystems in the near future.

scholarly journals Renewable and Non-Renewable Energy Consumption in BRICS: Assessing the Dynamic Linkage between Foreign Capital Inflows and Energy Consumption

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2974
Author(s):  
Zhexuan Qin ◽  
Ilhan Ozturk
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Foreign Capital ◽  
Capital Inflows ◽  
Renewable Energy Consumption ◽  
Negative Change ◽  
Long Run ◽  
Non Linear ◽  
Foreign Capital Inflows ◽  
Positive Effect

This study attempt to fill the research gap by figuring out the dynamic effects of foreign capital inflows effect on renewable energy and non-renewable consumption by using the time series non-linear ARDL approach for BRICS from 1991 to 2019. Non-linear ARDL estimates show that positive change in foreign capital inflows has a positive effect on renewable consumption in Brazil, India, and South Africa in long run. Also, the negative change in foreign capital inflows exhibits negatively liked with renewable energy consumption in BRICS economies, except Russia in long run. We find that positive shock in foreign capital inflows tends to increase non-renewable energy consumption in BRICS except India in the long run. Finding suggests that negative change in foreign capital inflows has negative impacts on non-renewable energy consumption in India and Brazil, while the positive effect in only China in the long run.

Effect of Lemna minor population density on bioelectric parameters of electro-biosystems.

2021 ◽  
Vol 6 (4) ◽  
pp. 195-200
Author(s):  
Iryna Rusyn ◽  
◽  
Vasil Dyachok ◽  
Keyword(s):  
Population Density ◽  
Lemna Minor ◽  
Open Circuit ◽  
Bioelectric Potential ◽  
Minor Population ◽  
Positive Effect ◽  
Load Conditions

The article presents a study of the influence of Lemna minor population density on the bioelectric potential and current of model electro-biosystems in the laboratory сonditions using 500 and 1000 Ω resistors and in the open circuit. The positive effect of increasing the density of duckweed plants populations from 60 to 120 fronds/ml on the growth of bioelectric parameters of model electro-biosystems under load conditions and without resistors was revealed. Increasing the amount of duckweed biomass is a factor of enhancing the efficiency of electro-biosystems based on L. minor.

scholarly journals Compensation effect of winter snow on larch growth in Northeast China

2021 ◽  
Vol 164 (3-4) ◽  
Author(s):  
Yuanqiao Li ◽  
Xiuchen Wu ◽  
Yongmei Huang ◽  
Xiaoyan Li ◽  
Fangzhong Shi ◽  
...  
Keyword(s):  
Tree Growth ◽  
Crucial Role ◽  
Northeast China ◽  
Compensation Effect ◽  
Forest Ecosystems ◽  
Growing Season ◽  
Winter Snow ◽  
Positive Effect ◽  
Adaptation Ability ◽  
Tree Radial Growth

AbstractWinter snow plays a crucial role in regulating tree growth during the subsequent growing season in regions suffering seasonal or even annual drought stress, but the mechanisms of the potential compensation effect of winter snow on subsequent growing-season tree growth are not well understood. In this study, we establish tree-ring chronologies of six larch forest stands along a marked drought gradient across Northeast China. We identify the spatial pattern in the compensation effects of winter snow on subsequent growing-season tree radial growth and uncover a potentially enhanced compensation effect in drier climates. Our results indicate that in snow-rich sites, winter snow tends to exert a significantly positive effect on tree growth during the growing season, whereas this growth compensation effect is reduced in drier sites. More importantly, our findings identify a much higher compensation effect of winter snow on growing-season larch growth in drier years (24.4–48.0%) than in wetter years (6.1–8.1%) at snow-rich sites. Given the projected increase in both severity and duration of droughts in temperate regions, the potential compensation effect of winter snow could play a crucial role in mediating the adaptation ability of boreal/hemi-boreal forest ecosystems in response to a warmer and drier future climate in these regions.

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