现代温室光环境特征的研究
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上海市博士后科研项目 , 上海市重点实验室基金 , 安徽省自然科学基金 , 安徽省高校优秀人才项目


Characteristics of Light Environment in Modern Greenhouse
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    摘要:

    利用玻璃温室的气象资料和对温室内外PAR的测定,系统比较研究了温室内外光环境的特征.结果表明,上海地区冬春季节(11月~3月),温室外太阳辐射相对不足,PAR低,且经常出现连阴情况.温室内的PAR与温室外太阳辐射呈同步变化,且二者间呈极显著线性关系(r=0.972* *),晴天温室内外PAR较阴雨天高.实验温室的平均透光率为50.6%.还对温室覆盖材料透光率下降的主要原因与提高措施进行了讨论.

    Abstract:

    The characteristics of light environment were investigated systemically based on meteorologic data from December 2002 to April 2004 in modern greenhouse.The results indicated that PAR (photosynthetic active radiation) outside greenhouse in winter-spring (from November to next March) is insufficient and low with continuous cloudiness or rain.The change of PAR inside changed with PAR outside synchronously,and there was significantly linear correlation between PAR inside and PAR outside (r=0.972~(**)).PAR both inside and outside in clear day are higher than that in cloudy or rain day. Average transparent rate of experiment glasshouse is 50.6%. The main causes led to decline of transparency of glasshouse covering materials and how to improve it were also discussed in this paper.

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  • 最后修改日期:2004-06-14
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