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| Current Status of Solid Waste Disposal in Rural Areas of the Tibetan Plateau： A Case Study of Five Villages in the Sichuan-Tibet Region |
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| KeyWord:Tibetan Plateau; domestic waste; environmental management; rural area; disposal status |
| Author Name | Affiliation | | HAN Zhi-yong | State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China | | DAN Zeng | Science school of Tibet university，Lhasa 850002，China | | KONG Chui-xue | Biogas Institute of Ministry of Agriculture, Chengdu 610041, China |
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| Abstract: |
| Pollution from solid wastes becomes increasing environmental concerns in rural areas of China. An investigation was performed on the current status of solid waste disposal, characteristics of domestic wastes, and people′s environmental knowledge and willingness of participation in environmental management in randomly selected five villages in the Tibetan Plateau. Of households investigated, about 60.8% disposed domestic wastes by simply burning, 86.3% used human and animal excreta as fertilizers, 58.8% utilized cow dropping as fuel, about 84.3% applied crop straw to feed livestock, and about 92.2% returned ash to farmland. Generally, plastic materials were freely discarded or burned. In the investigated areas, the average generation of domestic wastes was 85 g·d-1 per capita, and it was mainly composed of plastics, dust, kitchen wastes, glass and paper, which accounted for 83.94% of the domestic wastes. The bulk density, moisture content, ash, combustible and low calorific value of the domestic wastes were 65 kg·m-3, 19.25%, 44.90%, 35.85% and 10520 kJ·kg-1 respectively. People in the investigated areas were seriously lack of environmental education and environmental knowledge, but they showed very strong willingness to pay for waste disposals and to participate in waste management. Therefore, it is feasible to develop management and treatment systems of solid wastes in the rural area of the Tibetan Plateau. |
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