Emergy ecological footprint method considering uncertainty and its application in evaluating marine ranching resources and environmental carrying capacity

2022 ◽  
pp. 130363
Author(s):  
Yuan-Wei Du ◽  
Ye-Cheng Wang ◽  
Wen-Sheng Li
2012 ◽  
Vol 610-613 ◽  
pp. 961-964
Author(s):  
Cheng Long He ◽  
Wen Li Liu ◽  
Xin Guo Wu ◽  
Wei Luo

Jiaxing is listed experiment city of the national ecological civilization construction in 2012. Correctly understand and evaluate the supply of resources and environmental carrying capacity is an important prerequisite of ecologically-civilized city construction. The article structures emergy ecological footprint model combination emergy analysis theory and ecological footprints model.It can quantitative analysis environmental carrying capacity of Jiaxing through comparing ecological carrying capacity and the ecological footprint occupancy. By empirical study, in the rapid development of Jiaxing economy at the same time, ecological deficit has happened in the regions of Jiaxing, total deficit is 3.15 times of the urban area. It shows that industrial structure adjusting of Jiaxing is in a very stressful situation. From ecological deficit proportion of five counties and two districts in Jiaxing to see, Pinghu constitutes 37.63% and Haiyan constitutes 24.65%,the sum up of two counties (city) is to 62.28%. They are the priority counties of the industry structure adjustment.


Author(s):  
Mr Febrianto ◽  
Kukuh Murtilaksono ◽  
Syaiful Anwar

Development and space are one entity because space is a medium in development. Good development, optimally regulating the space and natural resources contained in it to preserve the environment. In the future, Pattallassang Sub-District will be designated as the largest economic region in Eastern Indonesia. This plan is regulated in PP No. 55/2011. The plan has also set Pattallassang District as a New City with satellite city functions. However, after several years of development, the construction of the New City Pattallassang, which is based on economic growth, has produced built-up land that has converted the functioning of agricultural land, forests and other productive agriculture in the last five years. Therefore, a follow-up plan is needed for land use for the environmental carrying capacity that is expected to produce an independent and optimal spatial planning. The purpose of this study was to analyze the ecological footprint, and environmental carrying capacity in Pattallassang Subdistrict in 2019. The analytical tool used analysis of ecological trace values consisting of calculation of ecological footprint (demand) population and biocapacity (supply) land use, and analysis environmental carrying capacity. The results showed that the population ecological footprint was 0.6368 gha/capita and land use biocapacity was 0.6371 gha/capita. The total value produced was 1.15 or deeper than the surplus used by bioproductive of at 1,108.17 ha.


Resources ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 52 ◽  
Author(s):  
Małgorzata Świąder ◽  
Szymon Szewrański ◽  
Jan Kazak ◽  
Joost van Hoof ◽  
David Lin ◽  
...  

The increasing rate of urbanization along with its socio-environmental impact are major global challenges. Therefore, there is a need to assess the boundaries to growth for the future development of cities by the inclusion of the assessment of the environmental carrying capacity (ECC) into spatial management. The purpose is to assess the resource dependence of a given entity. ECC is usually assessed based on indicators such as the ecological footprint (EF) and biocapacity (BC). EF is a measure of the biologically productive areas demanded by human consumption and waste production. Such areas include the space needed for regenerating food and fibers as well as sequestering the generated pollution, particularly CO2 from the combustion of fossil fuels. BC reflects the biological regeneration potential of a given area to regenerate resources as well to absorb waste. The city level EF assessment has been applied to urban zones across the world, however, there is a noticeable lack of urban EF assessments in Central Eastern Europe. Therefore, the current research is a first estimate of the EF and BC for the city of Wrocław, Poland. This study estimates the Ecological Footprint of Food (EFF) through both a top-down assessment and a hybrid top-down/bottom-up assessment. Thus, this research verifies also if results from hybrid method could be comparable with top-down approach. The bottom-up component of the hybrid analysis calculated the carbon footprint of food using the life cycle assessment (LCA) method. The top-down result of Wrocław’s EFF were 1% greater than the hybrid EFF result, 0.974 and 0.963 gha per person respectively. The result indicated that the EFF exceeded the BC of the city of Wrocław 10-fold. Such assessment support efforts to increase resource efficiency and decrease the risk associated with resources—including food security. Therefore, there is a need to verify if a city is able to satisfy the resource needs of its inhabitants while maintaining the natural capital on which they depend intact.


2020 ◽  
pp. 1-12
Author(s):  
Zhou Jiang ◽  
Zhenwu Wei

Grassland resources are an important part of land resources. Moreover, it has the functions of regulating the climate, windproof and sand fixation, conserving water sources, maintaining water and soil, raising livestock, providing food, purifying the air, and beautifying the environment in terrestrial ecosystems. Grassland resource evaluation is of great significance to the sustainable development of grassland resources. Therefore, this paper improves the BP neural network, uses the comprehensive index method to calculate the weights in the analytic hierarchy process, and constructs a water resources carrying capacity research and analysis system based on the entropy weight extension decision theory. Meanwhile, this paper analyzes different levels of resource and environmental carrying capacity to achieve the purpose of comprehensive evaluation of resource and environmental carrying capacity. In addition, based on the theory of sustainable development, under the guidance of the principle of index system construction, this paper studies the actual situation of grassland resources and the availability and operability of data, and combines with the opinions given by experts to form an evaluation index system of grassland resources and environmental carrying capacity. Finally, through the actual case study analysis, it is concluded that the model constructed in this paper has a certain effect.


2018 ◽  
Vol 73 ◽  
pp. 02007
Author(s):  
Ari Wulandari ◽  
Maryono Maryono ◽  
Agus Setyawan

The development of nature tourism in conservation areas such as in Taman Hutan Raya (Tahura) should be able to minimize the negative impact for the ecosystem. Tourism activities on the utilization block of Tahura must be limited by applying ecotourism concept which is concerned with environmental conservation and not the concept of mass tourism that is oriented on the number of visitors. Tahura K.G.P.A.A. Mangkunagoro I, every year has increased the number of tourist arrivals, most occur in 2016 and 2017 that is equal to 62.8% and 63.5%. This condition harmful the environment if it is not managed in a sustainable way that considers the carrying capacity of its environment. Therefore, a study was conducted to calculate the environmental carrying capacity in the utilization blocks of Tahura K.G.P.A.A. Mangkunagoro I using the method of calculating the physical carrying capacity (PCC), real carrying capacity (RCC) and effective carrying capacity (ECC) with the formula developed by Cifuentes (1992). The results of the calculation of environmental carrying capacity can be used as recommendation of the types of tourist activities that can be done, the arrangement of tourist visits, the type of facility that can be built in accordance with the rules of conservation and the number of officers required.


Sign in / Sign up

Export Citation Format

Share Document