中国农业气象 ›› 2010, Vol. 31 ›› Issue (S1): 48-52.

• 论文 • 上一篇    下一篇

温室作物生长对地面辐射的影响

刘洪;郭文利;孙忠富;高燕虎;权维俊;   

  1. 北京市气候中心;中国农业科学院农业环境与可持续发展研究所;
  • 出版日期:2010-12-20 发布日期:2010-12-20
  • 基金资助:

    北京市科委项目“保护地小气候数值模拟及其应用的研究”(H010710060119);; 科技部农业科技成果转化项目“日光温室气象灾害预警系统在京津冀地区的推广应用”(2006GB24160427)

Effects of Crop Growth on Radiation on Ground in Greenhouse

LIU Hong1,GUO Wen-li1,SUN Zhong-fu2,GAO Yan-hu1,QUAN Wei-jun1(1.Beijing Climate Center,Beijing 100089,China;2.Institute of Environment and Sustainable Development in Agriculture,CAAS,Beijing 100081)   

  • Online:2010-12-20 Published:2010-12-20

摘要: 针对北京地区常见日光温室,在建立辐射和作物生长模拟模型的基础上,分析叶面积指数变化对地面辐射的影响,并对模拟结果与实测值进行了比较验证。结果显示:叶面积指数达到3.5以上时,约90%辐射量被作物层吸收或反射;模拟值与实际值的平均绝对误差为22.17W.m-2,相关系数约为0.92;基于辐射模型和作物模型对地面辐射量动态变化进行模拟,具有较好的可行性。

关键词: 日光温室模型, 辐射分布, 作物生长

Abstract: Based on radiation simulation model and crop growth model,the author analyzed effects of leaf area index dynamics on ground radiation of typical solar greenhouses in Beijing area.And the simulated radiation and the actual radiation were analyzed and compared,it showed that when leaf area index was more than 3.5,90 percent of radiation was absorbed and reflected.The mean absolute difference between the simulated radiation and the actual radiation was 22.17W·m-2,and the relative coefficient was 0.92.The crop growth model and radiation model had a good performance in inflecting radiation on ground in greenhouse.

Key words: Greenhouse model, Radiation distribution, Crop growth