江苏省典型茶园土壤酸化速率定位研究  

Localized Monitoring of Soil Acidification Rate of Tea Garden in Jiangsu Province

作　　者：曹丹[1] 张倩[1] 肖峻[1] 宗良纲[1] 

机构地区：[1]南京农业大学资源与环境科学学院,江苏南京210095

出　　处：《茶叶科学》2009年第6期443-448,共6页Journal of Tea Science

基　　金：江苏省科技厅攻关项目"江苏省无公害茶叶产业化生产技术体系研究"(编号:BE2002315)

摘　　要：通过定位研究的方法,监测了江苏典型茶场代表性茶园土壤pH值、土壤质地、土壤有机质及阳离子交换量等理化性质。结果表明,江苏茶园土壤酸化趋势严重,有67%的茶园0～20cm土壤酸化速率大于0.1个pH单位/年,其中33%的茶园土壤酸化速率大于0.2个pH单位/年,50%的茶园土壤pH低于4。茶园土壤酸化以表土最为严重,且酸化速率显著大于自然土壤。茶园土壤酸化速率的大小与土壤本身的基本理化性质有关。Through positioning research methods,the representative tea garden soil pH,soil texture,soil organic matter and soil cation exchange capacity of typical tea plantation in Jiangsu province were monitored.The results showed that the 0～20 cm soil acidification rate of 67 percent tea gardens was more than 0.1 pH per year,33 percent was more than 0.2 pH per year and 50 percent the tea gardens has a pH value much lower than 4.Soil acidification of upper layer is the most serious.The acidification rate of tea garden soil acidification rate had a direct relationship with the basic physical and chemical properties of soil itself.

关 键 词：茶园 土壤 酸化速率 趋势 定位监测 

分 类 号：S571.1[农业科学—茶叶生产加工] S153.4[农业科学—作物学]