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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (20): 244-248.doi: 10.11924/j.issn.1000-6850.2013-2500

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

典型草原的光合有效辐射特征

贺俊杰   

  • 收稿日期:2013-09-21 修回日期:2013-10-22 出版日期:2014-07-15 发布日期:2014-07-15
  • 基金资助:
    锡林郭勒盟气象局服务型业务自选项目(201303)。

Photosynthetically Active Radiation Characteristics of the Typical Steppe

  • Received:2013-09-21 Revised:2013-10-22 Online:2014-07-15 Published:2014-07-15

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摘要： 为了合理利用太阳能和调整农牧业产业结构提供依据，利用2010年平均光合有效辐射(PAR)和太阳总辐射(Rs)资料，采用线性关系进行最小二乘拟合，分析该区的光合有效辐射特征。结果表明：典型晴天日和阴天日的PAR和Rs曲线变化趋势基本一致，且前者的值明显大于后者；PAR的月平均总量为8.15 MJ/m2，年总量为2983.1 MJ/m2，春、夏、秋、冬四季的平均日总量季节变化较明显，夏季最大，冬季最小；PAR/Rs晴天日的值明显小于阴天日，全年平均值为0.497，月平均值在0.422~0.544之间，最大值出现在夏末的8月，为0.544，最小值出现在冬季的1月，为0.42。PAR/Rs的变化幅度和当地的天气气候有关，受天空云、大气气溶胶、大气中水汽含量等因素的影响。

关键词: 净化效果, 净化效果

Abstract: In order to use solar energy, provide a basis for agricultural industrial structure adjustment by use of 2010 average photosynthetically active radiation (PAR) and global solar radiation (Rs) data, using the least squares linear fit of photosynthetically active radiation area characteristics. The results showed that: a typical sunny day and cloudy day PAR and Rs curve consistent trends, and the former was significantly greater than the value of the latter; PAR average monthly total of 8.15 MJ/m2, the annual total of 2983.1 MJ/m2, spring, summer, autumn and winter seasons, the average daily total seasonal variation was obvious, summer maximum and winter minimum; PAR/Rs sunny day cloudy day was significantly less than the value of the annual average of 0.497, the monthly average at 0.422-0.544 between the maximum in late summer in August to 0.544, minimum in winter in January was 0.42. PAR/Rs changes in the magnitude and the local weather and climate related, by the sky clouds, atmospheric aerosols, water vapor content in the atmosphere and other factors.