茶园土壤酸化国际研究概况和趋势  

Overview and trends of international research on soil acidification in tea plantations

作　　者：王贺新 盛曼曼 杨向德 赵强 焦纪伟 潘洪阳 叶新新[1] 陈晓辉 WANG Hexin;SHENG Manman;YANG Xiangde;ZHAO Qiang;JIAO Jiwei;PAN Hongyang;YE Xinxin;CHEN Xiaohui(Anhui Province Key Lab of Farmland Ecological Conservation and Nutrient Utilization/Anhui Province Engineering and Technology Research Center of Intelligent Manufacture and Efficient Utilization of Green Phosphorus Fertilizer/College of Resources and Environment,Anhui Agricultural University,Hefei 230036,China;Tea Research Institute,Chinese Academy of Agriculture Sciences/Key Laboratory of Tea Biology and Resources Utilization,Ministry of Agriculture and Rural Affairs,Hangzhou 310008,China;Lujiang County Supply and Marketing Cooperative Union,Lujiang 231500,China;Lujiang County Agricultural Technology Extension Center,Lujiang 231500,China)

机构地区：[1]农田生态保育与养分资源高效利用安徽省重点实验室/安徽省绿色磷肥智能制造与高效利用工程研究中心/安徽农业大学资源与环境学院,合肥230036 [2]中国农业科学院茶叶研究所/农业农村部茶树生物学与资源利用重点实验室,杭州310008 [3]庐江县供销合作社联合社,庐江231500 [4]庐江县农业技术推广中心,庐江231500

出　　处：《中国生态农业学报（中英文）》2024年第12期2107-2116,共10页Chinese Journal of Eco-Agriculture

基　　金：安徽省自然资源科技项目(2023-K-3);安徽农业大学高层次人才项目(rc522221)资助。

摘　　要：茶园土壤酸化是国际关注热点,已成为限制茶产业可持续发展的关键因素。为全面梳理茶园土壤酸化研究的国际发展动态,把握该领域研究的重心和前沿热点,本文对Web of Science(WoS)核心合集数据库(2000—2023年)发表的118篇相关文献进行分析。结果表明,自2018年开始,国际上关于茶园土壤酸化的研究呈明显增加态势;我国发文量最多且影响力最大。这些研究主要聚焦于茶园土壤酸化对土壤理化性质、碳氮磷循环、土壤微生物生态系统、茶叶产量与品质的影响,以及土壤铝毒与茶树耐铝机制、茶园土壤酸化改良等领域。酸化将导致土壤团聚体稳定性被破坏,缓冲性能降低,土壤通透性变差,进而造成土壤持水能力下降,根系生长受阻,同时还导致盐基离子大量淋失,盐基饱和度降低,土壤养分有效性下降,加剧了铝的活化与溶出,并增加茶叶重金属(如Cd、Pb和Cr等)含量。不仅如此,酸化能够加速土壤碳氮磷的损失,降低土壤微生物多样性,抑制某些有益微生物(如假单胞菌和慢生根瘤菌)的生长,损害微生物活性,从而影响茶树正常生长发育以及茶叶产量和品质。因此,不同程度的酸性茶园土壤需通过针对性措施进行防控,如施用有机肥或生物炭,有效缓解土壤酸度的同时提升土壤肥力。另外,铝的生物地球化学循环以及土壤酸化对茶园系统氮磷循环的影响分别为该领域研究焦点和持续性研究热点与前沿话题。本研究有助于全面了解国际茶园土壤酸化研究现状及进展,为茶园土壤酸化改良及应用提供重要参考。Acidification of tea garden soils has emerged as a global concern,posing a significant challenge to the sustainable develop-ment of the tea industry.This study analyzed 118 relevant publications retrieved from the Web of Science(WoS)core collection data-base spanning 2000 to 2023 to comprehensively trace the evolution of research on this topic and grasp its core areas and frontier trends.The results indicates that there has been a notable surge in international research on soil acidification in tea gardens since 2018.China has the highest number of publications and the greatest influence,with all five top global research teams regarding pub-lication output in this field originating from China.Research in this domain has primarily focused on the multifaceted impacts of soil acidification on tea garden ecosystems,encompassing alterations in soil physicochemical properties,disruptions to carbon,nitrogen,and phosphorus cycling,modifications to soil microbial ecosystems,and consequences for tea yield and quality.Additionally,studies have focused on soil aluminum toxicity,tea plant aluminum-tolerance mechanisms,and strategies for ameliorating soil acidification in tea gardens.Specifically,soil acidification undermines the stability of soil aggregates,diminishes the buffering capacity,and exacerbates soil compaction,thereby reducing the soil water-holding capacity and hindering root growth.This,in turn,leads to sub-stantial leaching of base cations,decreasing base saturation and nutrient availability,fostering the mobilization and dissolution of alu-minum,and increasing the risk of heavy metal(e.g.,Cd,Pb,and Cr)accumulation in the tea leaves.Moreover,soil acidification accelerates the loss of soil carbon,nitrogen,and phosphorus,reduces soil microbial diversity,inhibits the growth of certain beneficial microorganisms(such as Pseudomonas adaceae and Bradyrhizobium),and impairs microbial activity,thereby adversely affecting the normal growth and development of tea plants as well as the yield and quality of tea leaves.There

关 键 词：茶园 土壤酸化 土壤理化性质 碳氮磷循环 土壤微生物群落结构 土壤酸化改良 

分 类 号：S153[农业科学—土壤学] S156[农业科学—农业基础科学] S158