林芝市茶园土壤肥力综合评价  

Comprehensive Evaluation of Soil Fertility in Tea Plantation of Linzhi City

作　　者：叶童 付景博 吴金次仁[3] 刘少群[1] 孙彬妹 郑鹏[1] YE Tong;FU Jingbo;Wujin Ciren;LIU Shaoqun;SUN Binmei;ZHENG Peng(South China Agricultural University,Guangzhou Guangdong 510642;Linzhi Bureau of Agriculture and Rural Affairs,Linzhi Tibet 860013;Agricultural Technology Extension Service Centre of Tibet Autonomous Region,Lhasa Tibet 850000)

机构地区：[1]华南农业大学,广东广州510642 [2]林芝市农业农村局,西藏林芝860013 [3]西藏自治区农业技术推广服务中心,西藏拉萨850000

出　　处：《现代农业科技》2024年第10期92-96,共5页Modern Agricultural Science and Technology

基　　金：墨脱县茶叶标准化体系推广培训项目(H21417)。

摘　　要：为全面了解林芝市茶园土壤的肥力水平,本研究在波密县、察隅县、墨脱县、易贡茶场、察隅农场和鲁朗景区管理委员会6个茶叶主产区,从茶园及其附近农田、荒地取土91份,选取土壤有机质、pH值、全氮、有效磷、速效钾、缓效钾、有效铜、有效锌、有效铁、有效锰、有效硼、有效钼、有效硫、有效硅和水溶性盐总量15个评价指标,以农田土壤为对照,综合评价林芝市茶园土壤肥力。结果表明:茶园土壤有机质高于附近农田土壤,茶园土壤pH值低于附近农田土壤,茶园全氮、有效磷、速效钾等土壤养分与附近农田土壤整体差异不大。茶园科学合理管理可在一定程度上提高土壤的保肥能力和缓冲性能,但长期种植茶叶会造成土壤酸化,降低土壤某些养分的有效性。In order to comprehensively understand the fertility level of tea plantation soils in Linzhi City,this study took 91 soil samples from tea plantations and nearby farmland and wasteland in six main tea producing areas,including Bomi County,Chayu County,Motuo County,Yigong Tea Plantation,Chayu Farm and Lulang Scenic Zone Management Committee,and selected 15 evaluation indexes,including organic matter,pH,total nitrogen,available phosphorus,quickly available potassium,slowly available potassium,available copper,available zinc,available iron,available manganese,available boron,available molybdenum,available sulphur,available silica and total water-soluble salt of the soil in Linzhi City.Compared with farmland soil,the soil fertility of tea plantation in Linzhi City was evaluated comprehensively with 15 evaluation indexes.The results showed that the organic matter of the tea garden soil was higher than that of the nearby farmland soil,the pH of the tea garden soil was lower than that of the nearby farmland soil,and the soil nutrients of the tea garden such as total nitrogen,available phosphorus and quickly available potassium and so on did not differ much from those of the nearby farmland soil as a whole.The scientific and reasonable management of the tea garden can improve the soil′s ability to retain fertility and buffer performance to a certain extent,but tea planted for a long time will cause soil acidification and reduce the effectiveness of certain soil nutrients.

关 键 词：茶园 土壤肥力 综合评价 西藏林芝 

分 类 号：S158.2[农业科学—土壤学]