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Wyszukujesz frazę "Ecological Footprint" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Empirical Model for Estimating the Ecological Footprint in Ecuador Based on Demographic, Economic and Environmental Indicators
Autorzy:
Ilbay, Mercy
Ruiz, Joseline
Cueva, Evelyn
Ortiz, Vladimir
Morales, Diego
Powiązania:
https://bibliotekanauki.pl/articles/1838424.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ecological footprint
trends
environmental degradation
Ecuador
Opis:
In this study, the existence of long-term trends in ecological footprint (EF), biocapacity, GDP, population and CO2 emissions for the period of 1961–2016, and their effect on the demographic, economic and biocapacity indicators on Ecuador’s EF were identified. The long-term trend analysis was performed by means of a Mann-Kendall, nonparametric test. The development of a multiple linear regression model of the EF considers the population, GDP, biocapacity and its logarithmic transformations as returners. A backward removal method was used, in conjunction with the Akaike criterion (AIC) to validate the most suitable model in terms of adjusted-R2, NSE, BIAS and RMSE, respectively. The results show significant changes (p<0.01) of the annual EF increase (0.015 hag), total population (216.375 inhabitants), GDP ($1.2 billion) and CO2 emissions (718.6 kt). However, the biocapacity has been declining (0.086 hag) at a faster rate than the ecological footprint. In other words, in a few years, the country will be facing ecological deficits. As for the empirical model of EF, it can be observed that for every increase of inhabitant’s units, the natural logarithm of biocapacity and GDP will increase EF by 1.68x10-7, 4.84 and 0.905 gha, respectively. Moreover, EF will be decreased by 0.6 gha each time the biocapacity increases by one gha unit. Finally, this robust and easy-to-interpret model allows accurate EF predictions that can be a tool to better forecast the environmental trends, allowing the development of sustainable projects in Ecuador.
Źródło:
Journal of Ecological Engineering; 2021, 22, 5; 59-67
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of Phytoplankton Abundance and Chlorophyll-a Content in the Estuary of Banjar Kemuning River, Sidoarjo Regency, East Java
Autorzy:
Al Diana, Nabila Zahro
Sari, Luthfiana Aprilianita
Arsad, Sulastri
Pursetyo, Kustiawan Tri
Cahyoko, Yudi
Powiązania:
https://bibliotekanauki.pl/articles/1839560.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
marine
blue water
ecological footprint
pollution
water quality
Opis:
Estuaries are coastal areas that have a fairly high fertility rate. This region can be said to be fertile because it is influenced by such physical factors as temperature, turbidity, light, and current as well as such chemical factors as salinity, dissolved oxygen, pH, and nutrient content. The estuary of the Banjar Kemuning River is a coastal area with a lot of human activities, and it is close to the mainland, causing the change in the nutrient content in the waters. The nutrient content in the waters is closely related to the phytoplankton abundance, as the higher the nutrient content in the waters, the greater the phytoplankton abundance and the chlorophyll-a content. The level of chlorophyll-a content in the waters can indirectly be used as an indicator of the phytoplankton abundance, which can determine the level of fertility of these waters. The purpose of this study was to determine the relationship between the phytoplankton abundance and the chlorophyll-a content in the estuary of the Banjar Kemuning River. This study is observational research with data analysis using linear regression, simple correlation (Pearson), and ANOVA. In addition, the data collection was carried out by purposive random sampling at predetermined points of stations. The results of this study indicated that the phytoplankton abundance and the chlorophyll-a content at the estuary of Banjar Kemuning River during different months were significantly different (P < 0.05). The average phytoplankton abundance during the study was 19,256 cells/L, 19,044 cells/L, and 22,613 cells/L, while the average chlorophyll-a content during the study was 0.958 µg/L, 0.998 µg/L, and 1.167 µg/L. The conclusion was drawn that there is a difference between the phytoplankton abundance and the chlorophyll-a content each month and classified into high correlation.
Źródło:
Journal of Ecological Engineering; 2021, 22, 1; 29-35
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ecological Footprint Analysis of Canned Sweet Corn
Autorzy:
Usubharatana, P.
Phungrassami, H.
Powiązania:
https://bibliotekanauki.pl/articles/123689.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ecological footprint
life cycle assessment (LCA)
sweet corn
food industry
Opis:
There has been a notable increase in both consumer knowledge and awareness regarding the ecological benefits of green products and services. Manufacturers now pay more attention to green, environmentally friendly production processes. Two significant tools that can facilitate such a goal are life cycle assessment (LCA) and ecological footprint (EF). This study aimed to analyse and determine the damage to the environment, focusing on the canned fruit and vegetable processing. Canned sweet corn (340 g) was selected for the case study. All inputs and outputs associated with the product system boundary were collected through field surveys. The acquired inventory was then analysed and evaluated using both LCA and EF methodology. The results were converted into an area of biologically productive land and presented as global hectares (gha). The ecological footprint of one can of sweet corn was calculated as 6.51E-04 gha. The three factors with the highest impact on ecological footprint value were the corn kernels used in the process, the packaging and steam, equivalent to 2.93E-04 gha, 1.19E-04 gha and 1.17E-04 gha respectively. To promote the sustainable development, the company should develop new technology or utilize better management techniques to reduce the ecological footprint of canned food production.
Źródło:
Journal of Ecological Engineering; 2016, 17, 3; 22-29
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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