摘要
为了解杭州地区典型茶园土壤肥力及环境质量现状问题,对浙江杭州地区28个典型茶园进行实地调查取样和测定分析。结果表明,杭州茶园土壤p H适合茶树生长;有机质极为丰富;速效养分较丰富,但变幅较大;保肥能力中等偏上。土壤综合污染指数均小于0.7,环境质量总体良好,适合发展有机茶叶的种植;重金属元素在茶叶中的表现为Zn>Cu>Pb>Cr>Cd>Hg>As,其中铜、锌和镉在茶叶中的富集系数是其他重金属的10倍以上,但茶叶污染指数均小于1,质量总体较好。
In order to contents in typical tea suitable for tea tree understand soil fertility and the present situation of environment quality, the nutrients gardens were investigated in Hangzhou, Zhejiang. The results showed that soil pH was growth and the content of organic matter was also rich. In general, the contents of all available nutrients were rich, while there were great variations. Fertilizer retention capacity was above average. Moreover, complex pollution index of soil was less than 0.7, indicating the overall environment quality was good and suitable for the development of organic tea. Enrichment coefficient analysis showed that the content of heavy metal in tea was Zn〉Cu〉Pb〉Cr〉Cd〉Hg〉As. The concentration coefficient of copper, zinc and cadmium in tea was more than ten times compared with other heavy metals. However, tea pollution index was still below 1, indicating the overall quality was good.
作者
王京文
李丹
杨文叶
章林英
季淑枫
Wang Jingwen Li dan Yang Wenye Zhang Linying Ji Shufeng(Plant Protection and Soil Fertilizers Station of Hangzhou, Hangzhou 310020)
出处
《中国农学通报》
2017年第7期75-80,共6页
Chinese Agricultural Science Bulletin
基金
杭州市财政项目"杭州市农田环境监测"
关键词
茶园土壤
茶叶
土壤肥力
重金属
tea garden soil
tea-leaf
soil fertility
heavy metal
