潮滩湿地N、P生物地球化学过程研究

<title>erview on Geochemistry Process of Nitrogen and Phosphor in Tidal Flat Wetland

潮滩湿地是一种特殊类型的海岸湿地,其生态系统表生环境生物地球化学过程以及特殊生态与生物多样性保护的基础研究已经日益成为海岸生态系统相关研究的热点问题之一。由于其独特的演化过程、地理位置、地理环境、和所受的动力条件,使N、P在其生态系统内的生物地球化学过程不同于其他湿地类型。通过对潮滩湿地N、P生物地球化学循环特点和循环过程、盐沼植物在N、P生物地球化学循环中的作用以及潮滩湿地生态系统N、P的输入和输出等几个问题进行了概述,分析了当前国内外潮滩湿地N、P生物地球化学过程的研究特点和存在问题,提出了今后相关问题的主要研究趋势。

<abstract>e tidal flat is a special type of coastal wetland, and their biogeochemistry process of N and P has become one of headline scientific problems in the study of coastal ecosystem. For the special evolution process, geographic position, geographic environment and dynamic condition, the biogeochemistry process of N and P in the tidal flat differ from that of other wetland. In this paper, the characteristics and processes of biogeochemistry N and P in tidal flat, the effect of salt marsh plant on biogeochemistry process of N and P, and the importing or exporting of N and P in the tidal flat ecosystem are discussed. Based on above discussion, the trait and existing problems of current study on the biogeochemistry of N and P in the tidal flat at home and abroad are analysized. Subsequently, main trends of the study lated to it for the future are also proposed: The absorption, exchange, transfer and transform of N and P between the interface of sediment-water-biology, as well as their ecological environment effect have been paid more attention; From the point of view of research methods, the study on the biogeochemistry process of N and P has changed from single factor analysis to multiple factor analysis; For the improvement of computer technology and observation method, the initial descriptive qualified study has gradually been converted to quantitative study based on mathematical model calculation and simulation; the simplex study of the biogeochemistry process of N and P within the tidal flat ecology system has extended to coupling mechanism of such process with adjoining ecology system, especially the ecological environment effect.