摘要
利用气象学、天文学和农业气象学知识建立了用日总辐射量反演辐射日变化过程来推算玉米冠层光分布状况的农业气象模型。利用实测资料进行验证，模拟误差在２４％～８７％之间。对冠层分层研究的结果表明，模拟误差随分层数的增加呈指数递减。实际应用中冠层分为３～５层较为合适。
An agrometeorological model simulating the radiation change within canopy during a day based on agrometeorological knowledge was established in this paper. Validation of the model showed that the simulation error was only in the range 2.4% 8.7%. The simulation error decreased with increasing mumber of layers dividing the canopy according to an exponential relationship. It is suitable for the canopy to be divided into 3 5 layers in practical use.
出处
《南京农业大学学报》
CAS
CSCD
北大核心
1997年第3期13-19,共7页
Journal of Nanjing Agricultural University
基金
中国科学院禹城综合试验站开放课题
关键词
玉米
冠层
光分布
农业气象模式
maize
canopy
radiation distribution
agrometeorological simulation model
computer simulation
