The Empirical Analysis Of The Influence Of Extreme Climate On Tea Production

Taking Longyang District,Baoshan,Yunnan Province as a case study,this paper studies the present situation of tea production,the growth mode of tea production,the change and development trend of tea structure,and further verifies the statistical relationship of the influence of extreme weather events on the economic indexes of Longyang District tea production by combining the characteristics of Longyang District extreme climate change.Based on this,the countermeasures and suggestions for tea production in Longyang are put forward.The main conclusions are as follows:(1)Longyang Tea production mode has entered the good seed construction,the promotion of pollution-free tea production technology,high-excellent tea garden construction,standard tea garden construction,organic tea garden construction and other stages.Black tea and green tea are the main products of Longyang District,of which green tea has a more obvious growth advantage and comparative advantage.Gross output,total production and other representative tea industry development scale of the total index and picking area,tea yield,tea-related population and other explanatory variables there are mutual influence,mutual restriction of the relationship,when the picking area increased 1%,tea production increased 1.31%.(2)The extreme high temperature index of Longyang District showed a consistent upward trend,and in the extreme hypothermia index,the number of Frost days FD,Cold day days TX10 p showed a decreasing trend,the cold day threshold TXq10,The extreme temperature extremum of the month showed a consistent upward trend,and in the extreme precipitation Index,the number of moderate rain days pn10 mm and the maximum number of continuous Wet days CWD showed a decreasing trend,and the longest Continuous dry days of CDD showed an upward trend.(3)1986-2017 years Longyang Tea prices are mainly affected by the warm day threshold TXq90,the warm days and days TX90 p and the tea price of the previous year.The increase of warm days and days in summer and autumn is beneficial to the synthesis and accumulation of effective materials of tea,which is beneficial to the increase of tea price.(4)1986-2017 year Longyang Winter Spring cold day threshold rise,prompting spring tea early germination,so that it becomes Mingqian tea,is conducive to raising tea price,cold day threshold TXq10 and tea price Positive response relationship,while the number of frost days increased,will directly frostbite tea tea tips,buds,not conducive to the formation of effective substances,tea price reduction,frost Days FD and tea price negative response relationship.