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本文根据1987年3月至1988年12月九龙江口、厦门西海域调查资料,讨论表层沉积物中各种形态磷的分布特征以及在沉积与再悬浮过程中磷形态的转化。结果表明表层沉积物磷含量最高值处距悬浮颗粒物最大沉降速率处下游约5km。磷在悬浮颗粒物上主要以颗粒态有机磷存在,在表层沉积物中主要以无机结合态磷存在。缺氧的沉积环境中可溶性磷自表层沉积物上释放以及吸附在悬浮颗粒物上的磷的解吸作用,是该水域溶解态无机磷再生的两个主要来源。潮汐运动对磷的形态变化有影响。
Based on the survey data of Jiulongjiang estuary and Xiamen west sea area from March 1987 to December 1988, this paper discusses the distribution characteristics of various forms of phosphorus in surface sediments and the transformation of phosphorus forms during deposition and resuspension. The results show that the surface sediment maximum phosphorus content at a distance of about 5km downstream from the maximum sedimentation rate of particulate matter. Phosphorus mainly exists as particulate organic phosphorus on suspended particles, and mainly exists as inorganic bound phosphorus in surface sediments. The release of soluble phosphorus from surface sediments and the desorption of phosphorus adsorbed on suspended particles in the anoxic sedimentary environment are the two main sources of dissolved inorganic phosphorus regeneration in this area. Tidal movement has an impact on the morphological changes of phosphorus.