查詢結果分析
相關文獻
- 以生命週期評估法評估臺灣盤固草(Digitaria decumbens)乾草製作之碳足跡排放係數及環境影響熱點
- 施用牛糞及豬糞對盤固草產量品質及土壤地力之影響
- 豬場處理水對盤固草土柱滲漏水質之影響(1)--總氮、氨態氮及硝酸態氮
- 磷鉀肥對多年生花生與盤固草混植的生長影響及芻料利用效率
- 從微氣象資料推測盤固草牧草地之蒸發散量
- 盤固草品系Survenola與A254之青貯品質比較
- 盤固草與百慕達草對荷蘭種泌乳牛飼養價值比較
- Detection of Somaclonal Variation in Tissue Culture Regenerants of Pangolagrass
- 不同季節及生育日數對盤固草及印度藍莖草植體酚酸含量之影響
- 盤固草地以部分更新方式混植熱帶豆科牧草之效果
頁籤選單縮合
題名 | 以生命週期評估法評估臺灣盤固草(Digitaria decumbens)乾草製作之碳足跡排放係數及環境影響熱點=Carbon Footprint Emission Factors and Environmental Impact Assessment of Pangolagrass (Digitaria decumbens) Hay Production in Taiwan |
---|---|
作者姓名(中文) | 施意敏; 葉瑞涵; 凃柏安; | 書刊名 | 中國畜牧學會會誌 |
卷期 | 52:1 2023.03[民112.03] |
頁次 | 頁23-36 |
分類號 | 434.14 |
關鍵詞 | 盤固草; 生命週期評估法; 碳足跡排放係數; Pangolagrass; Life cycle assessment; Carbon footprint emission factors; |
語文 | 中文(Chinese) |
DOI引用網址 | 10.30194/JCSAS.202303_52(1).0002 |
中文摘要 | 臺灣地區種植面積最廣的牧草品種為盤固草 A254(Digitaria decumbens),主要以乾草方式提供乳牛飼養所需。目前相關研究尚欠缺盤固草乾草製作的碳足跡排放係數及對環境影響的衝擊評估。本研究以 2018 ~ 2022 年畜產試驗所北區分所的 18 公頃牧草地之栽培管理資料為基礎,界定系統邊界(子系統1草地管理;子系統2收穫作業;子系統3打包載運作業) 及功能單位(1 ton 盤固乾草,含水量 16%),進行生命週期評估法分析。依 ISO 14040/44 標準及產品類別規則為指引,並使用歸因方法對盤固草乾草生產進行評估。分別進行目標和範疇界定、生命週期盤查、環境衝擊評估及結果闡釋。分析結果顯示,生產盤固草乾草的碳足跡排放約為 155 kg CO2 eq/ton,生產過程環境影響主要發生在子系統 1 草地管理,其中以化學肥料的施用影響溫室氣體排放占 78%。分析環境影響熱點發現,施用肥料是主要熱點,且單位面積乾草產量顯著影響各類環境衝擊項目。因此建議盤固草乾草之生產碳排放可由草地管理及肥料施用的改善著手,依據實際環境的資源,設計出適宜的生產體系,在提升產量及環境負擔之間取得良好平衡。 |
英文摘要 | As hay for domestic dairy cattle, pangola grass (Digitaria decumbens) A254 is the most widely planted forage in Taiwan. There are no carbon footprint emission factors or environmental impact assessments for pangolagrass hay production hotspots at present. This study was based on the management and cultivation data of 18 hectares of pasture at the Northern Region Branch of Livestock Research Institute between 2018 and 2022. An environmental impact assessment was conducted using the life cycle assessment (LCA) method. There were three subsystems within the system: (1) crop management, (2) harvesting, and (3) baling and transportation. Throughout the study, the functional unit of measurement was defined as one metric ton of Pangola grass hay (at 16% moisture). Based on ISO 14040/44 and product category rules (PCR), we evaluated the production of pangolagrass hay. The cradle-to-gate approach was used to define the goal and scope, inventory the lifecycle, assess the environmental impact, and interpret the results. Pangolagrass hay has a carbon emission coefficient of 155 kg CO2 eq/ton, of which more than 78% is attributed to the use of chemical fertilizers in crop management. Chemical fertilizer application was found to have the greatest impact based on the hotspot analysis. All impact categories were significantly affected by hay yield in the sensitivity analysis. To achieve the goal of reducing carbon emissions, it is recommended to maintain pangola grass hay yields while reducing chemical fertilizer applications to the appropriate levels. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。