微域环境对单枞茶新梢生长与品质的影响

在一定茶园面积上，用不同透光率的遮荫网四周建成茶园微域气候，观察在不同的4个微域气候条件下，单枞茶新梢在年周期的生长情况以及鲜叶内含物的变化规律，以探讨利于单枞茶生长及品质的最适微域气候。结果表明，微域气候特征在年周期中，与自然气候相比，季节性变化相对稳定；微域条件能降低夏季高温，强光，提高春，冬季低温，增大秋季的湿度，利于茶树生长；用80％，60％遮荫网处理的微域环境能增加新梢的生长量与生长速度，新梢持嫩性好，降低多酚类物质的含量，增加氨基酸物质，协调各种物质比例，提高单枞茶的品质。

Effects of Microclimate on Young Shoot Growth and Quality of Dancong Tea in Tea Garden

The young shoot growth and chemical substances of fresh leaves of Dancong tea which were planted under 4 different microclimate's tea gardens were studied. The results indicated that variation of microclimate in tea gardens was more steady than nature tea garden in annual growth cycle. The high temperarure and strong sun light in summer were lowered; The temperarure was increased in cooler spring and winter, the humidity in dry autumn was raised. The microclimates with 80% & 60% shade net were confirmed that it promoted growth of tea plants,had a good shoot tenderness keep ability,reduced the content of polyphenols, increased the content of amino acid of fresh leaves and benefited to yield and quality of Dancong tea.