Fig 1 - available via license: Creative Commons Attribution 4.0 International
Content may be subject to copyright.
Context in source publication
Context 1
... reservoirs and forests. However, analysis of forest resources in Ukraine regions showed that those indexes deviate from optimum, mainly in soil-related and geographical areas of Ukraine. The Kyiv region is no exception, with forest areas in Polissya and the Forest-Steppe geographical zones with an average forest cover level from 21 to 30% ( Fig. 1) [Rehionalna dopovid, 2021]. The total area of the Kyiv region's forest fund to 01.01.2021 was 648.7 thousand ha, which was 22.2% of the territory [Regional Report, ...
Citations
... Forecasting the humus state as an integral indicator of soil fertility has recently received in-depth research (Beregniak et al., 2023). Under anthropogenic influence, the humus is transformed, primarily its labile part, which is removed by water and pyrophosphate extractors (Snakin & Pfisyazhnaya, 1997). ...
The relevance of research is determined by a complex of factors that shape the change in the humus system of gray forest soil dynamics (content, total reserves, values variability of labile and stable humus pools, humification processes direction) under the influence of mineral fertilizers and chemical reclamation in the long-term ecotope conditions. The purpose of the research was to assess the impact of systematic anthropogenic loading on changes in soil organic matter pools. Research methods included long-term stationary studies, laboratory determination of organic matter content and humus group composition, and statistical data analysis. It has been proven that liming practically did not contribute to the increase of the total humus content, however, due to the coagulating effect, certain changes in labile and more stable forms of humus substances occurred in its qualitative composition. It has been established that the cultivation of crops сultivation in crop rotation with a purely mineral fertilizer system did not lead to a significant organic matter accumulation in the soil, despite the increase in crop yield levels under appropriate conditions and the accumulation of a larger vegetative mass of root and post-harvest residues entering the soil, but its losses were significantly reduced. The use of organic components (green manure, by-products) in combination with moderate rates of mineral fertilizers on a liming background (humus content 1.63%), provided a clear tendency to expand humus reproduction by 0.16%, compared to the initial level, and by 15% and 12% more than in the version with no fertilizers and just mineral system. Under such a fertilizing system, there is a tendency to increase more stable humic acids. The increase in humification of organic matter was achieved through the application of fertilizers in limed backgrounds. In this case, the humus formation type exhibited characteristics of humate-fulvate, with a value of 0.9, which is characteristic of soils of forest origin in the northern Forest-Steppe region with the presence of soil-forming factors specific to that territory. The article materials are of practical value for agricultural producers in the development of an innovative strategy for preserving the environment safety, and soil fertility under the influence of elements of energy-saving technologies for crops.
... Forest security has become a major issue related to the survival and development of human societies; thus, it has greatly concerned all countries in the world. Scholars from Germany, the United States, Brazil, and other countries have studied and researched the integrity and composition of forests from the perspective of healthy development [4][5][6]. ...
The illegal logging trade (ILT) is considered one of the major causes of global deforestation and ecological unsustainability. To prevent the price-suppressing damage caused by ILT to the local wood market and global ecological environment, the Chinese government and non-governmental organizations have taken many actions to deal with it. This study used wood trade data to analyze the current status of ILT in China, summarized the efforts and shortcomings of ILT response actions taken by China, and discussed the possible strategies and sustainable development prospects for combating ILT in China’s future. After studying China’s situation in the field of ILT and analyzing the advantages and disadvantages of China’s measures to deal with ILT, this study found that the volume of ILT gradually increased in China from 2013 to 2020, which might also be one of the reasons for the slowdown in global ecological sustainability. The Chinese government and non-governmental organizations have taken many actions to deal with ILT through legislation, industry supervision, and international cooperation; to date, these response actions have achieved some positive results. Therefore, on this basis, this study proposed that China needs to further limit and manage ILT to achieve sustainable development of forest resources in the future. Strengthening the legislation, especially the restriction of ILT clauses, as a mandatory policy is the most important means to solve the ILT problem, which can provide the legal basis and a reference for other actions. Using economic means to encourage the import of legal wood is also a viable action to crowd out the trade of illegal wood. It is also necessary to promote an international certification system for wood and the standardization and systematization of logging is also a good way to mitigate ILT. Improving the management of wood being imported into China will fill a critical gap at the global scale in dealing with ILT and have positive impacts on combating global ILT.
The paper analyzes the effectiveness of the use of carbon sorbents based on sawdust of various tree species in decontamination of fuel and lubricants. The advantages of using the sorption method as an effective, widespread, simple and affordable method for cleaning oil products are substantiated. Attention is focused on the quality of the sorbent material for the use of carbon sorbents from sawdust of various tree species. The structural, physico-chemical, absorption and sorption characteristics of carbon sorbents from vegetable raw materials are given and the effectiveness of their use for cleaning water and soil environments is shown. The ecological and economic advantages of cleaning the water and soil environment from oil products with carbon sorbents from plant raw materials, compared to other methods and means of cleaning, are revealed.
