恩施州茶园土壤镉含量及其对茶叶质量安全的影响

The Cadmium Contents in the Soil of Tea Garden and Its Effect on Quality and Safety of Tea in Enshi

根据恩施州茶园分布特点及母质状况,选择58个点同时采集土壤和茶叶样品,调查土壤总镉含量、有效态镉含量及茶叶含镉量。结果表明,恩施州茶园土壤总镉含量普遍较高,且受成土母质影响较大,与茶叶含镉量具有一定的相关性,但相关性不强;土壤有效态镉含量与茶叶含镉量具有明显的相关性。

According to the distribution of tea garden and soil parent material conditions, 58 points were selected and the samples of soil and tea leaves were collected.The contents of total cadmium content, the effective cadmium in soil and cadmium in tea leaves were tested.The results indicated that total Cd content in tea garden soil was relatively high and effected greatly by soil parent materials.The cadmium content of tea was effected by Cd content in tea garden soil in some degree , but the correlation was not significantly.The effective state of soil cadmium has obvious relevance with cadmium content of tea.