灾害学2017，Vol.32Issue(3)：18-22,56,6.DOI:10.3969/j.issn.1000-811X.2017.03.004
芒果寒(冻)害等级划分及低温指标确定
Determination of Cold (Freezing) Injury Classification and Indicator of Low Temperature on Mango
摘要
Abstract
In order to find out the relationship between the morphological damage grade and meteorological disaster grade of mango cold (frozen) crops,mango freezing damages are graded and the cold (freezing) and low temperature index are determined.Based on the historical climate data,mango cold (freezing) disaster data,data on winter geography test and parallel observation experiment of 2014/2015 and 2015/2016,the typical disaster investigation,mango cold (freezing) morphological classification standard,and meteorological disaster grading standards,using the methods of mathematical statistics and comparative verification,the investigation time of cold (frozen) damage of mango and the classification standard of disaster grade and the low temperature index are researched on.The study suggested that,the investigation of freezing and cold injury time is at the end of cold air or frost,and the temperature gradually rose after 7 ～ 14 days;the criterion of meteorological disaster grade correspond to morphological damage:mild disaster is mango leaves,early flower spike appear symptom,but does not affect the yield;moderate disaster is mango leaves and flowers of the year the majority of victims,even next year yield have affected seedlings and young trees grafted part was frozen to death;strong disaster is the seedlings and young trees of mango killed the adult tree scion above all or part of the victim;severely disaster is Mango adult trees froze;Indicator of low temperature were mild disaster 0.5 ～2.0℃,moderate disaster-1.0 ～0.5℃,strong disaster-2.5 ～-1.0℃,and severely disaster ＜-2.5℃.The research results can be used in the cold (freezing) damage monitoring and early warning and risk zoning of mango.关键词
芒果/寒(冻)害/灾害等级/低温指标Key words
mango/cold (freezing) injury/disaster levels/low temperature index分类
资源环境引用本文复制引用
李政,苏永秀,王莹,陈惠,陆虹..芒果寒(冻)害等级划分及低温指标确定[J].灾害学,2017,32(3):18-22,56,6.基金项目
公益性行业(气象)科研专项(GYHY201406027) （气象）
广西自然科学基金项目(2014GXNSFBA118212、2015GXNSFAA138243) （2014GXNSFBA118212、2015GXNSFAA138243）
广西科技计划项目(桂科AB16380260) （桂科AB16380260）
