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Changes in carbon storage of Masson Pine Forests along a latitudinal gradient with different stand structures in Southern China

Wu Qiang, Ma Hengyun, Peng Yuanying, Yan Wende, Pan Deng

Polish Journal of Ecology

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2021

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Vol. 69, nr 3-4

137--155

EN

The spatial patterns of carbon pool in landscape vary greatly with variation of forest structures and climate conditions. In this field study, the carbon storage in overstory, understory, litter layer of plants and soil carbon in forests was investigated in 26-28 year-old Masson pine (Pinus massoniana) pure and mixed forests along a latitudinal gradient (20–30 °N) crossing Hunan and Guangxi provinces of China, during the period of May 2015–August 2017. We found that the total carbon storage in Masson pine forests ranged 88.92–149.41 Mg/ha, of which 54.03% occurred in aboveground compound and 45.97% occurred belowground. The overall total carbon storage distribution was 34.62–68.72 Mg/ha, 3.82–10.19 Mg/ha, 2.37–3.96 Mg/ha, and 6.06–12.08 Mg/ha in stems, branches, leaves, and roots, respectively. The carbon storage in the overstory of forest stands and forest soils significantly decreased with increasing latitude, while the carbon storage in the understory and litter of the forest stands significantly increased as the latitude increased. The overall carbon storage significantly decreases by 8.26 Mg/ha in Masson pine forests as the latitude increased by one degree. The carbon storage increased by 8.43% in Masson pine mixed forests compared to the pure forest stands after the transformation from the pure forest stands into the mixed forest stands ∼ 15 years later. The results of changes in carbon storage in the studied forests with the latitudinal gradient could be attributed to variations in hydrothermal conditions with changing latitudes. The forest structure with different tree species composition was another important factor regulating carbon storage in forest ecosystems at the same latitude. The results provided a scientific basis for better understanding of latitudinal variation and spatial distribution of carbon storage in Masson pine forest stands with optimal forest stand structures in subtropical region of China.

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The ways of creating public perception of CCS-technologies in Russian Federation

Vasilev Yurii

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2020

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z. 145

559--567

EN

Purpose: to determine the ways of widening the public awareness of CCS technologies and, therefore, creating some level of public perception Design/methodology/approach: The method of achieving the goals and tasks of this article is the secondary research of articles of foreign researchers related to formation of public opinion on climate change mitigation in general and, in particular, development of CCS projects. Besides, it is necessary to review Russian school textbooks to find the information about climatic problems. Findings: It is necessary to review the experience of foreign countries to determine the ways of shaping public opinion on the climate change issues and decreasing the level of CO2 in the Russian Federation. Originality/value: The article shows the major results of the survey: awareness of high environmental risks lowers public acceptance, the government plays a key role in environmental management, traditional and electronic media information can lower the perceived risk and improve the public acceptance of CCUS.

3

Application of AHP method to assess the possibilities of using of geological structures located in the aquifers as underground storage sites

Lewandowska-Śmierzchalska J., Uliasz-Misiak B.

AGH Drilling, Oil, Gas

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2017

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Vol. 34, no. 2

361--374

EN

Decision-making problem with assessing of the suitability of geological structures located in aquifers in terms of their use for carbon storage, natural gas storage or waste injection is mainly connected with the necessity of taking into consideration a large number of criteria and analyze a lot of parameters. It also connected with making many independent decisions concerning geological, environmental, social, political, technical or legal issues. This article shows the possibility of using the AHP method, ie. multi-criteria hierarchical methods to analysis of decision problems in assessment the potential of aquifers. AHP method allows to take reasonable decision. The article was divided into three parts. The first one includes a characteristics of geological structures located in aquifers, special attention was paid to the criteria describing these structures. In the second part, the basis for decision-making system based on the method of AHP, which was used to carry out the hierarchical scoping assessment of potential structures. Validation of decision-making system was realized on selected geological structures located on the Polish Lowlands. An assessment of the possibilities to use the two anticline in the Mesozoic aquifers was made. As a result, received the criteria ranking, rankings of decision variants to all criteria and global ranking of variants. Based on the results obtained can be determine which decision represents a priority way of use structure.

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Badania stężenia C02 w powietrzu podgłebowym w rejonie Tarnowa pod kątem monitoringu składowania dwutlenku węgla

Tarkowski R., Uliasz-Misiak B., Wdowin M., Batkiewicz K.

Rocznik Ochrona Środowiska

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2010

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Tom 12

847-860

PL

Pomiary koncentracji dwutlenku węgla w powietrzu podglebowym, na obszarze pomiędzy Jastrząbka Stara i Różą, pozwoliły na opracowanie metodyki pomiarów oraz określenie stężeń CO2 w powietrzu podglebowym. Badania wykonano w 25 punktach pomiarowych wokół dwóch otworów produkujących ropę naftową oraz przy drodze pomiędzy nimi, w 12 seriach pomiarowych. Zaobserwowano zmienność stężenia tego gazu w zależności od pory roku oraz lokalizacji punktu pomiarowego. Najwyższe pomierzone stężeniaCO2 stwierdzono w miesiącach letnich na obszarze pól uprawnych przy drodze pomiędzy otworami produkcyjnymi oraz w ich bezpośrednim sąsiedztwie. Porównując wyniki uzyskane z poszczególnych lat zauważono ich powtarzalność. Podkreślić należy, że wyniki pomiarów stężeń CO2 w powietrzu glebowym przekraczają często 1%, a nawet dochodzą do 5%, co znacznie odbiega od tych z innych obszarów (poniżej 0,5%). Uzyskane wyniki prezentują obraz koncentracji CO2 w powietrzu glebowym i można traktować jako tło tego gazu na badanym obszarze.

EN

Geological carbon dioxide storage has different kinds of risks for people and environment in global as well as in local scale. That's why monitoring is so important for the whole process of carbon dioxide storage. The main purpose is to follow gas migration under ground, to control seal of injection wells during and after injection, verification of injected carbon dioxide quality and also control of parameters connected with injection. Preparation and carrying out of geological storage monitoring of carbon dioxide is required by Directive of European Parliament andCouncil 2009/31/WE in case of geological storage from 23 of April 2009 [18]. One of the basic research connected with carbon dioxide storage monitoring is establishing of the CO2 concentration (background) in the ground/soil air before starting the injection. Such a researches are done also during and after the end of injecting gas to underground reservoir. If the important differences in CO2 concentration are stated they can suggest that gas has escaped. Presented research results concern CO2 concentration measurements in soil air in the area of Jastrzabka Stara oil field near Tarnow. Carbon dioxide injection as an Enhanced Oil Recovery (EOR) can increase oil production from the reservoir which is in the last exploitation stage. Carbon dioxide concentration measurements in ground/soil air were made between 2005-2008 using Detector MultiReaPlus based on IR radiation absorbance. To select appropriate research methodics the measurements were preceded by researches. They were made each time in drilling wells, 80 cm under ground in the area and between production wells JSt-8 and JSt-12. There were defined 25 sampling points in which about 300 measurements were done in all seasons. Results of three years research showed that CO2 concentration values change seasonal in the sampling points. Concentration changes were connected also with weather conditions (air temperature changes and precipitation). Localization of the sampling points have an important influence on the findings. Through the three years research the repeatability of research results in sampling points during circle of the seasons was found. Thanks to this research the background for CO2 concentration in this area was established.

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Carbon storage of cycad and other gymnosperm ecosystems in China: implications to evolutionary trends

Ma Y., Jiang H., Wang B., Zhou G., Yu S., Peng S., Hao Y., Wei X., Liu J., Yu Z.

Polish Journal of Ecology

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2009

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Vol. 57, nr 4 (2

635-646

EN

Cycads are an ancient lineage of plants that originated in the Permian, which are vital to the interpretation of plant ecology. The evidence in the fossil records indicates that the morphological and anatomical features of cycads are remarkably similar to the extant taxa, which has been instrumental in our understanding the connections between the early origins of seed plants and their present-day counterparts. The cycad ecosystem is an important vegetation type throughout geological time. Research on the ecological function of the cycad plays a significant role in the study of evolutionary ecology. In this study, we investigated the biomass, productivity and total carbon storage (total of vegetation, litter, and soil carbon) of cycad (Cycas panzhihuaensis L. Zhou et S.Y. Yang) ecosystems in the National C. panzhihuaensis Reserve of China (latitude 26[degrees]37', longitude 101[degrees]35', at 1635 m altitude) by applying the site-standard tree sampling harvest. Cycads are considered to be rare and endangered species, and are in the list of key protected wild plants in the world. The National C. panzhihuaensis Reserve is in Southwestern China, which area approximately 1358 ha, growing approximately 20 000 C. panzhihuaensis individuals. 20 sample plots, each 5 x 5 m were established in the spring of 2006. The mean height of cycads within the stand was 0.44 m and the mean basal diameter was 23.2 cm. The biomass and productivity data for other communities was compiled from references published over the past 20 years throughout China. The biomass and productivity of cycad ecosystems (8.102 [plus or minus] 6.880 t C ha[^-1] and 1.183 [plus or minus] 0.975 t C ha[^-1] yr[^-1], respectively) are smaller than tree fern (Alsophila spinulosa (Wall. ex Hook.) R. M. Tryon) or gymnosperm (Pinaceae, Cupressaceae or Taxodiaceae for representative) ecosystems. The community biomass of Pinaceae-, Cupressaceae- or Taxodiaceae-dominated ecosystems are 6.8, 5.4, and 5.3 times larger than the cycad ecosystem, respectively. The productivity of each is 2.3, 2.8 and 3.8 times larger than the cycad ecosystem. Cycad is an ancient dioecious plant. However, the results show that the differences between the biomass of male and female cycads, as well as the productivity, are not significant.