生物质炭对茶园土壤改良及茶叶品质的影响

发布时间：2019-04-22 21:49

【摘要】：近年来,茶树种植过程中化肥的超量施用造成茶园土壤酸化加剧和有机质含量降低等一系列问题,进而影响到茶叶的产量和品质。生物质炭一般呈碱性,具有含碳量高、比表面积大、高度生物化学稳定性和较强的吸附性能等特性,能够增加土壤碳储量,提高土壤pH值和养分有效性,对于茶园土壤固碳、土壤改良和抑制土壤氮磷流失、改善农产品品质等方面有较大作用。针对我国茶园土壤存在的主要问题,以生物质炭的特性及生物质炭改良土壤的作用机理为研究对象,重点阐述了生物质炭在茶园酸化土壤改良、土壤氮素淋失阻控、土壤固碳增汇等方面的效应,以及生物质炭提高茶叶产量和提升茶叶品质方面的作用机理。基于以上研究,展望了生物质炭在茶园管理方面的理论研究方向,为生物质炭在农业生产中的应用和推广提供科学依据。
[Abstract]:In recent years, the excessive application of chemical fertilizer in tea plantation resulted in a series of problems, such as the aggravation of soil acidification and the decrease of organic matter content in tea plantation, which further affected the yield and quality of tea. Biomass carbon is generally alkaline, has high carbon content, large specific surface area, high biochemical stability and strong adsorption properties, can increase soil carbon storage, improve soil pH value and nutrient availability, for tea plantation soil carbon sequestration, Soil improvement and control the loss of soil nitrogen and phosphorus, improve the quality of agricultural products and other aspects have a great effect. In view of the main problems existing in tea plantation soil in China, the characteristics of biomass carbon and the action mechanism of biomass carbon in improving soil were studied, and the improvement of acidified soil with biomass carbon in tea garden and the control of nitrogen leaching resistance in soil were discussed in detail. The effects of soil carbon sequestration and carbon sequestration, as well as the action mechanism of biomass carbon in improving tea yield and tea quality. Based on the above research, the theoretical research direction of biomass charcoal in tea plantation management is prospected, which provides scientific basis for the application and popularization of biomass carbon in agricultural production.
【作者单位】：华中农业大学资源与环境学院/农业部长江中下游耕地保育重点实验室;河南省农业科学院植物营养与资源环境研究所;
【基金】：国家自然科学基金项目(41201255,41561068) 中央高校基本科研基金(2662016PY098) 国家重点研发计划(2016YFD0300809) 河南省科技攻关(162102110010)
【分类号】：S156;S571.1

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