狼尾草的友善種植和環境永續利用

Environmental sustainability and friendly culitaviation of Napier grass (Pennisetum alopecuroides)

劉冠佑(Liu Kuan-yu)

指導教授 ： 趙浩然

國立屏東科技大學/工學院/環境工程與科學系所/碩士(2022年)

https://doi.org/10.6346/NPUST202200372

摘要

工業革命後，全球碳排放量急速上升，使全球暖化並造成溫度上升。隨著世界發起2050年要達到淨零排放，從而需要更早地絕對減少排放。各國紛紛開始制定嚴格的溫室氣體減量目標，並著重於產業升級、能源轉型方向執行，其為國內主要芻料作物之一。具有高產量、少病蟲害、對環境適應力高，並可做為畜牧、寵物及食品等高價值作物，以回應氣候變遷議題與減碳排放。狼尾草（Pennisetum purpureum Schumach）可視為永續農業產品之一。近年來許多研究顯示:由於纖維含量高，將狼尾草榨成汁經發酵後，可生產生質能源，為能源潛力物種；狼尾草廢棄物也可壓成草磚作為燃料。因此本研究將探討狼尾草對於環境永續使用潛勢，將監測在弱光環境下，從種植後到採收整體的固碳量。運用已普及化LED技術，藉由所得數據與之前種植方式相比較，計算增加光源可使狼尾草增加的土壤碳含量。研究發現該田地(面積4分)40天內可多消耗大氣中52.81 kg二氧化碳，引用兩者同為禾本科植物固碳量，合宜溫度下固碳量相差可高達10倍，藉此增加消耗大氣中的二氧化碳含量。以期發展低碳農業，建立狼尾草生態系統，並以精準農業為目標達成環境永續發展。

關鍵字

狼尾草

並列摘要

As the world initiates 2050 to reach net zero emissions, many countries have begun to set strict greenhouse gas reduction targets, focus on the implementation of industrial upgrading and energy transformation, to respond to climate change issues and reducing carbon emissions. Pennisetum（Pennisetum purpureum Schumach）can be regarded as one of the sustainable agricultural products and one of the main domestic crops with high yield, less pests and diseases, high adaptability to the environment, and can be used as high-value crops for animal husbandry, pets and food. In recent years, many studies have shown that Pennisetum with high fiber content can be squeezed into juice and fermented to produce biomass energy, and thus to be an energy potential species; Pennisetum residues are compressed into grass bricks that can be used for fuel. Therefore, this study will explore the potential of Pennisetum for environmental sustainable use, and will monitor the overall carbon sequestration from planting to post-harvest under low light conditions. By comparing the obtained data with the previous planting methods, the study with additional light source for Pennisetum to measure the increase of the carbon content in the soil, using the popularized LED technology. The results show that the experimental field with 3879 square meters can consume an extra 52.81KG of carbon dioxide in the atmosphere within 40 days, and find that the two are the same as the carbon sequestration of grass plants, and the difference in carbon sequestration under suitable temperature can be as high as 11 times, thereby increasing the consumption of carbon dioxide in the atmosphere. This may help to develop low-carbon agriculture, establish a pennisetum ecosystem, and achieve environmental sustainable development with the goal of precision agriculture.

並列關鍵字

Pennisetum alopecuroides

參考文獻

參考文獻

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