A Preliminary Analysis of the Relationship between Longan Canopy Temperature and Air Temperature during Overwintering Period  

龙眼越冬期间冠层温度与大气温度关系的初步分析(英文)

作　　者：蒙文交 谭宗琨[2] 刘春峰 

机构地区：[1]广西来宾市兴宾区水果局,广西来宾546100 [2]广西区气象减灾研究所,广西南宁530022 [3]广西来宾市气象局,广西来宾546100

出　　处：《Agricultural Science & Technology》2008年第4期82-86,136,共6页农业科学与技术（英文版）

基　　金：Supported by National Key Project of Scientific and Technical Support-ing Programs Funded by Ministry of Science & Technology of China during the11thFive-Year Plan Period"Study on Monitoring,Early Warning and Control Techniques of Major Agricultural Meteorological Disasters--Study on Monitoring and Early Warning Techniques of Chilling Injury in South China"(2006BAD04B03);Subject of National Key Project of Scientific and Technical Supporting Programs Funded by Ministry of Science & Tech-nology of China"Study on Chilling and Freezing Injuries Assessment,Mo-nitoring and Warning Techniques of Main Subtropical Crops"(2008BADB8B01)~~

摘　　要：[Objective] The study aimed to provide supports for developing chilling and freezing injury monitoring and disaster damage assessment of longan(Dimocarpus Longan Lour.).[Method] Based on field observation data,the relationships between longan canopy temperature and air temperature under different weather types(sunny,cloudy to sunny,cloudy,rainy,radiation chilling injury and advection chilling injury)in 2007-2008 winter were analyzed.[Result] Diurnal variations of longan canopy temperature under sunny and radiation chilling injury weather conditions were most dramatic,followed with those under cloudy to sunny condition,while variations under cloudy,rainy and advection chilling injury conditions were mild.Diurnal variations of orchard air temperature were also closely related to weather types.By using linear and curvilinear regression methods,the relationship models between longan canopy temperature and observation station air temperature were established.The models for cloudy,rainy and advection chilling injury had better effects than those for sunny,cloudy to sunny and radiation chilling injury;the models for night were better than those for daytime and the whole day.[Conclusion] To some extent,applying the relationship models between longan canopy temperature and observation station air temperature could make up the shortcoming of meteorological data which were higher than the real values.[Objective] The study aimed to provide supports for developing chilling and freezing injury monitoring and disaster damage assessment of longan(Dimocarpus Longan Lour.).[Method] Based on field observation data,the relationships between longan canopy temperature and air temperature under different weather types(sunny,cloudy to sunny,cloudy,rainy,radiation chilling injury and advection chilling injury)in 2007-2008 winter were analyzed.[Result] Diurnal variations of longan canopy temperature under sunny and radiation chilling injury weather conditions were most dramatic,followed with those under cloudy to sunny condition,while variations under cloudy,rainy and advection chilling injury conditions were mild.Diurnal variations of orchard air temperature were also closely related to weather types.By using linear and curvilinear regression methods,the relationship models between longan canopy temperature and observation station air temperature were established.The models for cloudy,rainy and advection chilling injury had better effects than those for sunny,cloudy to sunny and radiation chilling injury;the models for night were better than those for daytime and the whole day.[Conclusion] To some extent,applying the relationship models between longan canopy temperature and observation station air temperature could make up the shortcoming of meteorological data which were higher than the real values.

关 键 词：Longan(Dimocarpus LONGAN Lour.) CANOPY TEMPERATURE Air TEMPERATURE FREEZING INJURY Model 

分 类 号：S667.2[农业科学—果树学]