宜昌市夷陵区2018年茶树冻害调查报告

Investigation on the Freezing Injury of Tea Trees in Yiling District,Yichang in 2018

文章对2018年宜昌市夷陵区茶园发生的冻害进行了调查,从海拔、坡向、地形、品种等方面分析了冻害原因。整体而言,海拔越高冻害越严重,迎风阳坡的受冻程度比背风阴坡严重,平地茶园比坡地茶园冻害轻,槽田茶园比岗地茶园受冻轻,本地品种比外地品种受冻轻,壤土茶园比砂土茶园受冻程度轻,树势生长强壮的茶园冻害轻,提出了茶树冻后恢复措施,从良种、防护林、管理、覆盖、间作方面给出了防御冻害的建议,以期为减轻茶园冻害、减少茶叶经济损失提供参考。

The article investigated the freezing injury of tea gardens in Yiling district,Yichang in 2018,and analyzed the causes of freezing injury from the aspects of elevation,slope direction,topography and variety.On the whole,the higher the altitude is,the more severe the freezing injury would be;the tea gardens on upwind sunny slope undertake more freezing injury than those on the leeward overcast slope;the freezing injury in flat tea garden is lighter than the slope tea garden;the freezing injury in trough tea garden is lighter than the landscaping tea garden,and the freezing injury in local varieties are lighter than the foreign varieties;the freezing injury in loam tea garden is lighter than the sand tea garden;and the freezing injury in tea gardens with strongly-grown plantations is lighter than those with weakly-grown plantations.Also,the restoration measures of the tea tree after freezing were put forward and some suggestions were given to prevent the freezing damage from the aspects of improved species,shelter-forest,management,mulching and intercropping,with a view to provide references for alleviating the freezing injury and reducing the economic loss of tea.