Informatics Publishing Limited

Cheng-Zhi Li ¹, Yan Zhang ², Zhi-Hui Liu ¹, Xianyong Meng ³, Jing Du ⁴

Affiliations
1 Key Laboratory of Oasis Ecology Ministry of Education, Xinjiang University, Urumqi 830046, CN
2 School of Educational Science, Xinjiang Normal University, Urumqi, Xinjiang, 830054, CN
3 School of Resources and Environment Science, Xinjiang University, Urumqi 830046, CN
4 School of Computer Science and Technology, Xinjiang Normal University, Urumqi, 830054, CN

Abstract

With development of economy and modern socialization, the daily yield of household solid waste becomes a serious problem nowadays. To dispose of these solid wastes, people should collect the wastes and transport to municipal solid waste treatment plant to handle it. Usually, municipal solid waste (MSW) collection can account for more than 70% costs in the total MSW management system, and most of these costs are fuel costs. As we know, the emissions from vehicles contribute acid rain and global warming a lot in recent years. Therefore, it is necessary and urgent to find an optimal solution to reduce the emission and minimize the fuel consumption. By applying systems engineering methods, some models can be designed and modified to simulate the routes for collecting and transporting the MSW in the major urban area, in order to get an optimal solution which can achieve the goal of reducing fuel consumption from transportation and emission. In this study, an optimization for MSW collection routing using 3D GIS modeling is reviewed to get some new knowledge and idea. The main purpose of this study is to introduce a successful example and methodology which is used to optimize the MSW collection routing system, and design a model to find an optimal solution to minimize the fuel consumption and reduce the emissions in one area of St. John's, Newfoundland, by applying systems engineering methods.

Keywords

Municipal Solid Waste, MSW Collection Routing, 3D GIS Model, Systems Engineering.

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Lingyun He ¹, Xianyong Meng ², Jing Du ³, Yuejian Wang ¹, Yongge Cai ⁴, Xiangling Tang ¹

Affiliations
1 College of Science Geography Department, Shihezi University, Shihezi, 832000, CN
2 School of Resources and Environment Science, Xinjiang University, Urumqi 830046, CN
3 School of Computer Science and Technology, Xinjiang Normal University, Xinjiang 830054, CN
4 College of Agriculture, Shihezi University, Shihezi, 832000,, CN

Abstract

The SPOTVGT NDVI data of 1998 to 2008 were selected to analyse the ecological pattern and variation characteristics of Junggar basin in China. Conclusions are as follows: The overall ecological pattern of the basin is that, an apparent and continuous oasis belt was formed in the north, a small oasis area was distributed in the northern basin, and the ecological condition in the centre of the basin is poor but stable. The most flourishing period of the natural vegetation in the basin is in August, while in the central part of the basin, it lasts from late May to early June; vegetation also apparently appears flourishing during this period with subsequent downfall of ephemeral plants. While the ephemeral plants are distributed in the whole basin except the artificial farmland, flourished in the oasis edge, rare in the central part of the basin, but a slightly prosperous area was formed in the middle of the basin (North of Hutubi). The biomass in the basin has increased within basin in recent years mainly due to the agricultural expansion. The development activities of human mainly affect the edge of the oasis with the range of 50 km, and the greatest impact area is near the edge of the oasis with 5-10 km.

Keywords

Junggar Basin, Ecological Characteristics, Ephemeral Vegetation, SPOTVGT NDVI, Change Analysis.

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