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題 名 | 水稻對臭氧之生理反應(1):水稻田臭氧濃度變化及不同品種幼苗對臭氧濃度吸收能力之變異=The Physiological Responses of Rice (Oryza sativa L.) to Ozone (Ⅰ)--Changes of Ozone Level in Rice Field and Genotype Variation in Ozone Absorption for Rice Seedlings |
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作 者 | 楊振國; 盧虎生; 朱鈞; | 書刊名 | 中華農學會報 |
卷 期 | 1:2 2000.04[民89.04] |
頁 次 | 頁159-170 |
分類號 | 434.111 |
關鍵詞 | 臭氧; 水稻; Ozone; Rice; |
語 文 | 中文(Chinese) |
中文摘要 | 在全球環境變遷和空氣污染中,臭氧是目前被公認較嚴重的空氣污染項目之一。而水稻是本省最重要的糧食作物,其種植面積約佔全省耕作面積42%,就實用性的觀點來看,若水稻具有臭氧減量能力,則可以緩和空氣中的臭氧污染。本研究的目的為探討水稻生長與空氣中臭氧的關係,一方面可了解空氣中的臭氧對水稻的危害性,一方面可評估水稻栽培時對地表層空氣中之臭氧是否有減量效果。本試驗也進一步評估稉、秈稻品種間對臭氧的吸收能力。 田間臭氧濃度測定結果顯示,利用臭氧攜帶型偵測儀所測得的台灣大學農業試驗場基隆路旁臭氧濃度和環保署古亭測站的濃度數值並無顯著差異,顯示此類儀器可應用於田間的臭氧變化分析,田間的臭氧濃度在一期作時與對照無明顯差異,第二期作則在水稻栽培期間較對照之無水稻區約減少1-3 ppb左右,吸收最多的時期如開花期,可減少臭氧濃度約9%左右,可能對大氣中的臭氧有減量效果。在水稻各品種的吸收速率方面,秈稻各品種其吸收速率較稉稻各品種高,同時其總通導度亦較稉稻各品種大,此特性可能影響栽培品種對臭氧的耐性與減量能力。 |
英文摘要 | Several crop plants have been found to have the ability to absorb ozone, and have the potential on mitigating ozone pollution. The objective of this study was to explore the relationships between rice growth and ozone mitigation in troposphere; and investigate the absorbing ability among rice cultivars. There was no difference between the ozone concentration detected by a portable analyzer at Kee-Long Road along the Experimental Farm Station of National Taiwan University and the concentration of ozone measured at Ku-Ting Station of Environment Protection Administation. The result suggests that portable ozone analysis system can be utilized for related rice field experiments. During the second crop, ozone concentration in rice-growing field was reduced by 1 to 3 ppb along the seedling stage to the maturing stage. A high reduction by 9% in ozone concentration was found at the flowering stage, suggesting that ozone in the atmosphere could be reduced by rice field. Absorption ability of tested indica varieties may be in general higher than that of japonica varieties. |
本系統中英文摘要資訊取自各篇刊載內容。