5/30/2023 0 Comments Daymap nmhs![]() ![]() By using complex (satellite, forest and climate) data, many sophisticated (machine learning) algorithms and some widely applied (the Mann-Kendall test and Sen's slope estimator) statistical procedures, this study investigates, for the first time, recent forest NPP trends (1987-2018) that occurred in Romania, in relation to climate change that affected the country over the past decades. While the analysis of spatio-temporal changes in the net primary productivity (NPP) of forests can provide critical information on carbon cycle and climate change, these ecological trends have remained unclear in many countries worldwide, including Romania. At the same time, further research is needed on the system of baseline parameters for administrative-territorial units for which there are insufficient official statistics, as well as the feasibility of applying weights, provided they are properly justified. The improved methodology, in contrast to existing ones, is different due to its simplicity, versatility and suitability for assessing the sustainable development of any comparable administrative-territorial units. The calculations confirmed the comparability of the results with the results of other authors in previous studies. Approbation of the improved methodology was carried out on the example of Poltava, Sumy and Kharkiv regions, which are part of the North-Eastern economic region of Ukraine. For the same reason, it was proposed to abandon the use of weights when calculating the values of indicators and policy categories. Instead, it was suggested not to use the original data obtained by experts, due to the impossibility of verifying their reliability. Improving the existing methodology was to simplify it by developing a single system of parameters based on official statistics. The methodology is based on metrics for measuring sustainable development processes, developed by the Institute for Applied System Analysis of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine. Based on the analysis, a method of assessing the sustainable development of administrative-territorial units has been proposed. The problem of lack of a unified methodology for assessing the sustainable development of administrative-territorial units has been identified, which prompted its development. The article considers the existing approaches to understanding the term “sustainable development” and the methodology for assessing sustainable development processes. The results from this study can provide useful information to decision-makers in formulating the policy of renewable resources exploitation while ensuring minimal disturbance to the ecosystem. Most of the regions projecting a decrease in renewable resources (critical regions as the empower density is expected to decrease) have a moderate empower density/NPP ratio and therefore, climate change is expected to cause a moderate effect on the ecosystem of these regions. Our results suggest that the Himalayan region and highland areas of South America, European Russia and Eastern Europe are rich in overall renewable resources, GCM projections suggest that a major part of the globe is expected to observe an increment in renewable resources. Moreover, the distribution of Net Primary Productivity (NPP) was related to emergy to understand the interactions between energy and the environment. We also used 24 different General Circulation Models (GCMs) to examine the impact of climate change on distribution of global resources. We identified the regions with abundant renewable emergy and compared these regions based on different renewable resources. The entire world was classified based on land cover types, United Nations (UN) geoscheme regions, major river basins, and climate types. ![]() ![]() Unprecedented global maps depicting the emergy distribution of renewable natural resources (e.g., solar radiation, wind, rainfall, and geothermal heat flow) are presented in this work, and a composite empower density (Em sej/km²/year) map was generated. Emergy assessment coupled with Geographic Information System (GIS) has supported the creation of an effective framework needed towards sustainable development. Renewable natural resources and ecosystem services constitute the fundamental support needed for the sustainable development of human beings. ![]()
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