頁籤選單縮合
題名 | 塑膠布溫室之微氣候研究 (1):溫室之光環境 |
---|---|
作者姓名(中文) | 徐森雄; | 書刊名 | 中華農學會報 |
卷期 | 157 1992.03[民81.03] |
頁次 | 頁34-43 |
分類號 | 435.16 |
關鍵詞 | 光環境; 塑膠布; 微氣候; 溫室; |
語文 | 中文(Chinese) |
中文摘要 | 本研究在高雄農業改良場內,針對長9m、寬6m、高3.2m,四周覆蓋每吋32目之塑膠網,前後上緣及屋頂覆蓋0.15 mmPVC塑膠布之東西向及南北向溫室,自78年8月25日至80年7月20日配合五期洋香瓜及二期蔬菜之栽植,進行室內微氣候觀測,其有關日射量與光度等光環境資料,經分析可獲下述結論: 1. 臺灣南部緯度較低,太陽高度角較高,因此溫室內陽光透過率未若溫帶有明顯之變化,其平均值約為55~65%,天氣晴朗時較低,陰雨時較高。 2. 溫室內直射光對日射量所佔比率較其在室外者明顯衰減,而溫室內散射光對日射量所佔比率較其室外者,衰減不多,甚至反大於室外所佔比率。 3. 溫室內日射量與水平面光度之比例關係,於作物矮小階段1 ly/min折71000~82000 lux,生長中期開花授粉階段約1 ly/min折68000 lux及至瓜葉繁茂果實成熟階段,約1 ly/min折22000~45000 lux。 |
英文摘要 | The Micro-climate of greenhouse had been studies in this paper. The greenhouse was orinted east-west and north-south, those had been coverd with plastic net (32 mesh per inch) in both long side and short and roof coverd with PVC film (0.15 mm thick). The micro-climate of greenhouse was measured from August 25, 1989 to July 20, 1991 that coordinate the cultivation of five terms musk melon and two terms vegetable. The results obtained about light environment were summarized as follows: 1. The transmissivity of solar radiation has not shown significant seasonal variance, its long term average was about 55~60%, the value in clear sky is lower than that in cloudy sky. 2. The ratio of direct radiation to solar radiation in greenhouse decreases obviously than that out of greenhouse. The ratio of diffuse radiation to solar radiation in greenhouse, direases only a little than that out of greenhouse, sometimes is larger than that out of greenhouse. 3. The illumination intensity in greenhouse can be express by solar radiation in greenhouse, during small vegetation period the ratio is 1 ly/min equal to 71000 lux in E-W house and 82000 lux in S-N house, then during musk melon in blooming period is 1 ly/min equal to 68000 lux in E-W and S-N house, and during musk melon in harvesting period is 1 ly/min equal to 22000 lux in E-W house and 45000 lux in S-N house. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。