茶叶通讯2025，Vol.52Issue(2)：185-193,9.DOI:10.20178/j.cnki.ISSN1009-525X.2025.02.008
勐海县古茶树茶园土壤养分与质量评价
Evaluation of Soil Nutrients and Heavy Metal Pollution Status in Ancient Tea Gardens in Menghai County
摘要
Abstract
To elucidate the soil quality status of ancient tea gardens in the Pu'er tea tea production area of Menghai county,Yunnan province,and provide scientific basis for optimizing nutrient management measures in ancient tea gardens from the perspectives of high efficiency,high quality,ecology,and sustainable development,and also provide theoretical reference for the long-term safety of soil land use in ancient tea gardens.The soil samples were taken from 25 representative ancient tea plantations in 11 tea-producing towns in Menghai county to detect soil pH value,organic matter(OM),total nitrogen(TN),total phosphorus(TP),total kalium(TK),cracked nitrogen(AN),available phosphorus(AP),rapidly available kalium(RAK),available sulfur(AS),and available boron(AB),as well as the content of four heavy metals:lead(Pb),arsenic(As),chromium(Cr),and cadmium(Cd).The proportion of soil pH value of 25 ancient tea gardens that meet the standard of high-quality fertility tea gardens is 84.00%.The proportion of OM,TN and AN content that meet the standards of high-quality fertility tea gardens is 96.00%.The proportion of TP and AP contents fit the standards of high-quality fertility tea plantations was 20.00%.The proportion of TK content reaching the standard of high-quality fertility tea garden was 44.00%,and the proportion of RAK content reached the standard of high-quality fertility tea garden was 80.00%.The AS and AB contents did not fit the standards of high-quality tea gardens;The contents of heavy metals Pb,As,Cr and Cd did not reach the standards of Yunnan soil background value and NY/T853-2004《Environmental Technical Conditions for Tea Production Areas》.The enrichment of AP,RAK,AS,and Pb is easily affected by pH value.The five elements OM,TN,TP,AN,and AB are highly positively correlated with each other.As is negatively correlated with Cr and Pb,and positively correlated with Cd.Pb is also positively correlated with Cd.The soil of the ancient tea gardens in Menghai county is suitable for the growth of tea trees,and the overall soil nutrient status is above average.The 25 ancient tea garden soils surveyed in Menghai tea production areas all in a safe state.关键词
古树茶园/土壤养分/重金属/普洱茶/勐海县Key words
Ancient tea garden/Soil nutrients/Heavy metal/Pu'er tea/Menghai county分类
农业科技引用本文复制引用
张洪玲,毕玭(蘋),陈玫,何青元,李友勇,罗琼仙,杨毅坚,马玲,马玉青,汤松..勐海县古茶树茶园土壤养分与质量评价[J].茶叶通讯,2025,52(2):185-193,9.基金项目
世界大叶茶技术创新中心建设及成果产业化(202102AE090038),云南省"兴滇英才"支持项目(YNWR-SXJS-2020-054),云南省农业基础研究联合专项(202401BD070001-079),云南省职工创新补助资金项目(22-J07),云南省农业科学院人才引培项目(2024RCY-06) （202102AE090038）
