摘要
在茶园中种遮荫树,使光照强度下降30～40%,散射辐射量增加6～15%;冬春季气温提高0.5～2.0℃;夏季气温降低0.5～4.0℃;土壤绝对含水量增加17～41%;空气相对湿度提高2～20%。用塑料薄膜覆盖茶树,也有相似的生态效应。因此,遮荫或覆盖可以提前7～10天采茶。
Shading with planting trees in tea garden, light intensity was obviously reduced by 30～40%, scattering increased 6～15%; air temperature was enhanced 0.5～2℃ in winter and spring seasons, but decreased 0.5～4℃ in summen absolute content of soil water and reletive aci moistmre were 17～40% and 2～20% higher respectively. Tea bushes covered with plastic film produced the similar influence to shading, resulting in a benefit of 7～10 days ahead for teapicking.
关键词
遮荫
覆盖
茶园
生态
Tea garden
Shading
Ecological environment
