邛崃山脉优质茶与地质背景关系研究

Study on Relation of Geological Background and High-Quality Tea Producing in Qionglai Mountains

邛崃山脉优质茶产地的周围出露有中生界白垩系(K)、新生界下第三系名山群及大邑砾岩(E1-2mn、N)和第四系(Q)各地层,各地层的土壤重金属元素迁移到茶叶中的特征进行对比分析得出:各元素富集能力由强到弱次序为:Cu>Cd>Zn>Ni>Hg>As>Cr>Pb;土壤背景值与四川丘陵地区和成都经济区土壤基准值相比,Cd、Hg、Mo、Pb、Se富集,其余元素与对比区含量水平相近;pH值总体略显酸性,目前适合优质茶叶种植的推广发展。随着人类活动的加剧,邛崃山脉优质茶产区环境有恶化的趋势,要因地制宜,合理利用规划土地,要实时监控周边环境,杜绝环境污染引起优质茶种植区污染。

Many strata emerges in the high quality tea producing area in Qionglai mountains,which belonged to Mesozoic Cretaceous（K）,Cenozoic Tertiary Mingshan Group Dayi Team（E1-2mn,N）,Quaternary（Q）.By analyzing the migrating features of soil heavy meatal from each stratum to tea leaves,the result showed that the enrichment ability of each element was CuCdZnNiHgAsCrPb;compared the soil background value with the soil base value of Sichuan hilly area and Chengdu Economic Zone,Cd,Hg,Mo,Pb,Se enriches,and others were near to that of the comparing area;the pH was a little acidic,and high quality tea cultivation could be developed here at present.With the increase of human activities,the environment of study area tends to deteriorate.Therefore,land planning and use should be reasonable.The government should monitor the environment and prevent pollution.