scholarly journals The Mapping of Quantitative Carrying Capacity Using Multi-Scale Grid System (Case Study: Water-Provisioning Ecosystem Services in Greater Bandung, West Java, Indonesia)

2018 ◽  
Vol 25 (1) ◽  
pp. 40
Author(s):  
Dini Aprilia Norvyani ◽  
Akhmad Riqqi ◽  
Agung Budi Harto ◽  
Sitarani Safitri
Keyword(s):  
Carrying Capacity ◽  
Water Demand ◽  
Spatial Modelling ◽  
Grid System ◽  
Multi Scale ◽  
Provisioning Ecosystem Services ◽  
Scale Grid ◽  
Provisioning Services

Spatial modelling using multi-scale grid system is adopted to determine the threshold and distribution pattern of regional carrying capacity. Water-provisioning service is used as a quantitative approach. Closed system was applied in which it was based solely on the potential of existing resources in the region without taking in to account the flow of material in or out of the system. Steps being taken include the distribution of water demand – of land and domestics – and supply; and the determination of carrying capacity status based on the threshold of water-provisioning services. A grid system with 5″×5″ resolution is used to accommodate the various sets and scale, of data. The result shows, 82.29% of Sumedang Regency; 68.43% of Cimahi City; 61.29% of Bandung City; 60.51% of Bandung Barat Regency; and 57.34% of Bandung Regency are still able to fulfil the demands of the population.

DAYA DUKUNG AIR DAN LAHAN PERTANIAN KAWASAN AEROCITY KOTA BANJARBARU

2021 ◽  
Vol 4 (2) ◽  
pp. 227
Author(s):  
Anggara Putra Yudha ◽  
Syarifuddin Kadir
Keyword(s):  
Spatial Pattern ◽  
Carrying Capacity ◽  
Water Demand ◽  
Agricultural Land ◽  
Supply And Demand ◽  
Land Area ◽  
Land Supply ◽  
Agriculture Land ◽  
Main Component

This study was purpose to analyze carrying capacity water and agricultural land in Aerocity region of Banjarbaru. The method used refers to the Ministry of Environment No. 17 of 2009 concerning Guidelines for Determination of Environmental Carriying Capacity. The main component in this study determines the supply and demand aspects of water and agricultural land. The results showed that the analyze of water carrying capacity in Aerocity region of Banjarbaru showed that the supply of water in 2017 was 104,453,637.9 m3 / Year while the water demand was 66,747,200 m3 / Year. The refore the water carrying capacity status in the Aerocity of Banjarbaru has a surplus because the supply of water greater than water demand, while the results of the Analyze Agricultural Land Capacity in the Aerocity of Banjarbaru show that based on the planned spatial pattern of agricultural land area of Aerocity region is 8.75 ha, while demand for agricultural land is 17,395,989 ha. Therefore, the carrying capacity of agricultural land in Aerocity of Banjarbaru has deficit (deficiency) because land supply less than demand of land.Keywords: Carrying capacity of water; Carrying capacity of agriculture land; Aerocity

scholarly journals Modelling of carrying capacity in National Park - Fruška Gora (Serbia) case study

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
Aleksandra Vujko ◽  
Jovan Plavša ◽  
Marko D. Petrović ◽  
Milan Radovanović ◽  
Tamara Gajić
Keyword(s):  
Carrying Capacity ◽  
National Park ◽  
High Concentration ◽  
Negative Effects ◽  
Main Hypothesis ◽  
Main Research ◽  
Research Goal ◽  
Local Residents

AbstractNegative effects of tourism development in a destination are usually the consequence of the high concentration of tourists, accommodation facilities and the activities that are practiced in a relatively restricted area. One of the most important measures to protect the areas is to calculate the maximum number of tourists that can simultaneously reside in a region, i.e. the determination of the carrying capacity. This paper outlines a method for determining carrying capacity based on zoning of environmental resources and zoning within a region. The paper argues for a return to the idea of identifying maximum appropriate number of users. The main hypothesis of the paper is based on the statement that the development of tourism in Fruška Gora (Mountain) National Park in Northern Serbia must be in accordance with the basic principles of sustainability, including the determination of carrying capacity. The main research goal was to show the opinion of local residents about the uncontrolled development of tourism, and to determine the carrying capacity in four sports and recreational zones of the mountain. The carrying capacity of the area is calculated by Lavery and Stanev formulas.

scholarly journals Reservoir-Induced Hydrological Alterations Using Ecologically Related Hydrologic Metrics: Case Study in the Beijiang River, China

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 2008 ◽  
Author(s):  
Jiakai Du ◽  
Xushu Wu ◽  
Zhaoli Wang ◽  
Jun Li ◽  
Xiaohong Chen
Keyword(s):  
Carrying Capacity ◽  
Water Demand ◽  
Anthropogenic Activities ◽  
Environmental Water ◽  
Main Stream ◽  
Beijiang River ◽  
Water Ecosystems ◽  
Operation Results ◽  
Environmental Water Demand

Anthropogenic activities have a tremendous impact on water ecosystems worldwide, especially in China. To quantitatively evaluate the hydrological alteration connected with aquatic lives and river ecological risks, we took the Beijiang River located in South China as the case study and used ecosurplus (defined as ecological carrying capacity exceeding ecological consumption)/ecodeficit (defined as ecological consumption exceeding carrying capacity) and Indicators of Hydrological Alterations to evaluate hydrological changes. The Ecologically Relevant Hydrologic Indicators were employed to select the key indices of Indicators of Hydrological Alterations, and the eco-environmental water demand calculation provide an effective way for the reservoir operation. Results showed that: (1) High flows contributed more to the ecodeficit, while low flows contributed more to the ecosurplus; (2) the ecodeficit in some parts of the river basin might exceed the ecosurplus after reservoir construction, especially along the main stream; and (3) the determination of eco-environmental water demand is a feasible way for improving the environment by controlling reservoirs. The current study can help guide the optimization of hydrological operation in the basin toward making the ecosystem healthier and has potential to further provide a reference for other basins in terms of hydrological alterations driven by anthropogenic activities.

A novel method for the determination of linting propensity of paper

TAPPI Journal ◽  
2012 ◽  
Vol 11 (10) ◽  
pp. 9-17
Author(s):  
ALESSANDRA GERLI ◽  
LEENDERT C. EIGENBROOD
Keyword(s):  
Ash Content ◽  
The Novel ◽  
Offset Printing ◽  
Excellent Correlation ◽  
End Conditions ◽  
Bottom Side ◽  
Novel Method ◽  
Total Fraction

A novel method was developed for the determination of linting propensity of paper based on printing with an IGT printability tester and image analysis of the printed strips. On average, the total fraction of the surface removed as lint during printing is 0.01%-0.1%. This value is lower than those reported in most laboratory printing tests, and more representative of commercial offset printing applications. Newsprint paper produced on a roll/blade former machine was evaluated for linting propensity using the novel method and also printed on a commercial coldset offset press. Laboratory and commercial printing results matched well, showing that linting was higher for the bottom side of paper than for the top side, and that linting could be reduced on both sides by application of a dry-strength additive. In a second case study, varying wet-end conditions were used on a hybrid former machine to produce four paper reels, with the goal of matching the low linting propensity of the paper produced on a machine with gap former configuration. We found that the retention program, by improving fiber fines retention, substantially reduced the linting propensity of the paper produced on the hybrid former machine. The papers were also printed on a commercial coldset offset press. An excellent correlation was found between the total lint area removed from the bottom side of the paper samples during laboratory printing and lint collected on halftone areas of the first upper printing unit after 45000 copies. Finally, the method was applied to determine the linting propensity of highly filled supercalendered paper produced on a hybrid former machine. In this case, the linting propensity of the bottom side of paper correlated with its ash content.

Techno-Economic Case Study of Micro-Grid System at Soccer Club of Skagerak Arena Norway

2020 ◽  
Author(s):  
Arvind Sharma ◽  
Mohan Kolhe ◽  
Stein Oluf Kristiansen ◽  
Stig Simonsen ◽  
Henrik Landsverk ◽  
...  
Keyword(s):  
Grid System ◽  
Micro Grid

The Calculation of Turbulent Diffusion Coefficients in Aquatic Ecosystems

2019 ◽  
Vol 70 (11) ◽  
pp. 3903-3907
Author(s):  
Galina Marusic ◽  
Valeriu Panaitescu
Keyword(s):  
Transport Equation ◽  
Turbulent Diffusion ◽  
Diffusion Coefficients ◽  
Aquatic Ecosystems ◽  
Specific Area ◽  
Left Bank ◽  
The Right ◽  
Prut River

The paper deals with the issues related to the pollution of aquatic ecosystems. The influence of turbulence on the transport and dispersion of pollutants in the mentioned systems, as well as the calculation of the turbulent diffusion coefficients are studied. A case study on the determination of turbulent diffusion coefficients for some sectors of the Prut River is presented. A new method is proposed for the determination of the turbulent diffusion coefficients in the pollutant transport equation for specific sectors of a river, according to the associated number of P�clet, calculated for each specific area: the left bank, the right bank and the middle of the river.

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