重庆市晚熟柑橘冻害指标的初步研究  

Preliminary Study on Frozen Damage Index of Late Maturing Citrus in Chongqing

作　　者：唐余学 佘静平 石姣姣 Tang Yuxue;She Jinping;Shi Jiaojiao(Chongqing Meteorological Science Institute,Chongqing 401147;Qijiang Meteorological Bureau,Qijiang 401420;Wanzhou Meteorological Bureau,Wanzhou 404100)

机构地区：[1]重庆市气象科学研究所,重庆401147 [2]重庆市綦江区气象局,綦江401420 [3]重庆市万州区气象局,万州404100

出　　处：《气象科技进展》2021年第2期108-111,147,共5页Advances in Meteorological Science and Technology

基　　金：重庆市气象局科技攻关项目。

摘　　要：近年来重庆市晚熟柑橘冻害的发生不仅与低温强度及其持续时间有关,同时与立地条件有较大相关。针对此情况,基于冻害个例,应用信息扩散理论,建立了冻害临界温度、低温持续时间和坡度三要素构成的晚熟柑橘冻害指标。检验结果表明:利用该指标对冻害程度的评价等级与实际情形较为吻合,相较于目前采用较多的以最低温度判断冻害等级更符合重庆实际情况。该指标可应用于重庆市晚熟柑橘在越冬期的冻害监测和评估等工作,具有一定的推广应用价值。In view of the fact that the freezing damage to late maturing citrus in Chongqing in recent years is not only related to the low temperature and its duration,but also to the site conditions.Based on some examples of freezing damage,the index of freezing damage to late maturing citrus is established by using information diffusion theory.The result shows that the evaluation grade of freezing damage degree by using this index is more consistent with the actual situation,and it is more in line with the actual situation of Chongqing than the lowest temperature judgment grade.This index can be applied to the monitoring and evaluation of freezing damage to late-maturing citrus in overwintering stage in Chongqing,and has certain popularization value.

关 键 词：晚熟柑橘 冻害指标 

分 类 号：S666[农业科学—果树学] S426[农业科学—园艺学]