| URN | etd-0104112-145432 | Statistics | This thesis had been viewed 643 times. Download 0 times. |
| Author | Po-Hsien Shen | ||
| Author's Email Address | muta-kid@yahoo.com.tw | ||
| Department | Institute of Industrial Management | ||
| Year | 2011 | Semester | 1 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 191 |
| Title | Study of Organic Tea Product Supply Chain Process Map and Carbon Footprint | ||
| Keyword | |||
| Abstract | Global warming problem has caused the European Union, Britain, Japanese government and many other organizations and enterprises to apply carbon management skill to cope with GHG reduction problem. Product carbon footprint (CFP) is one of many communicating tools for green consumption and green management. Generally, PAS2050 developed by the British Standards Institute (BSI) is used as a guideline to calculate product CFP. Many commercial calculating tools based on product life-cycle, SimaPro for example, are too huge and too tedious to be operated that small business enterprises become hesitate to use. The study establishes a pre-calculation procedure for CFP of organic tea product. The concise calculating procedure may help reducing a lot of effort in a following stage of carbon level application. The production process and activity in the Sanshui tea farm in Taoyuan county will be a case study. Firstly, organic tea production process should follow "organic tea cultivation guidelines" and "organic tea certification rule" issued by relevant governmental agency. Then, the popular PAS2050ĄG2008 guideline is reviewed in calculating CFP of organic tea product. A user-friendly calculating procedure, based on a five-stage supply chain and process map, will be developed. The five-stage green supply chain structure includes raw materials, manufacturing, distribution/retail, consumer use, and recycling/disposal. This five-stage procedure makes it easier and clearer to calculate carbon emission during a product life-cycle. Result of the case study shows that CFP is 12.37 kg CO2e per kilogram of dry organic tea product from Sanshui tea farm, and respectively in five-stage of supply chain are: raw materials 11.75 kg CO2e (94.98%), manufacture 0.56 kg CO2e (4.53%), distribution / retail 0.05 kg CO2e (0.41%), recycling/disposal 0.01 kg CO2e (0.08%). The higher ratio of carbon emissions in raw materials stage is mainly contributed from fertilizer and equipment used in crop cultivation. For comparison, CFP of many tea products used in local and foreign tea drinks described in seven product category rules (PCR) is between 11.54 kg CO2e and 21.38 kg CO2e. As distance of transportation is concerned, CFP of organic tea product per kilogram transported to 120 km and 260 km distance is respectively 18.32 kg CO2e and 25.32 kg CO2e, which are far exceeding raw materials and manufacture stages. CFP by 1000 km of marine transportation is 62.32 kg CO2e. In comparison to organic farming, CFP of tea produced in a conventional farm in northern Taiwan is 26.66 kg CO2e per kilogram of dry tea products. This reveals that tea from a conventional farm using chemical fertilizer may produce more carbon emission as compared with organic tea product. The results may also reveal that way of agriculture cultivation and distance of transportation are major causes of carbon emission of tea product, while manufacturing process and recycling/disposal contribute only a small portion in total CFP calculation in a product life cycle. |
||
| Advisor Committee | |||
| Files | indicate not accessible | ||
| Date of Defense | 2011-12-23 | Date of Submission | 2012-01-04 |