中国第5次北极科学考察(2012年)海水总磷（TP）分析数据

氮、磷是海洋环境中重要的生源要素，控制海洋初级生产力，指示海洋环境演变过程。氮、磷作为海洋浮游植物生长的限制因子，可以控制生物种群的数量。在全球约70%的海区，氮（N）是真光层中浮游植物生长最主要的限制性营养盐，固氮生物通过固氮酶将氮气还原为氨，对输出生产力有重要的贡献。海水总氮是反应水质的重要指标之一。
本数据为中国第5次北极考察海水总氮分析数据，共包括12个站位，数据内容包括站位号、经度、纬度、调查日期、调查时间、采样深度和总磷。

Nitrogen (N) and phosphorus (P) are important biogenic elements in the marine environment, which control marine primary productivity and indicate the evolution of marine environments. As limiting factors for the growth of marine phytoplankton, nitrogen and phosphorus can regulate the population size of marine organisms. In approximately 70% of the global marine areas, nitrogen (N) is the primary limiting nutrient for phytoplankton growth in the euphotic zone. Nitrogen-fixing organisms reduce nitrogen gas to ammonia via nitrogenase, making significant contributions to marine export productivity. Total nitrogen in seawater is one of the important indicators reflecting water quality.

This dataset is the seawater total nitrogen analysis data from the 5th Chinese National Arctic Research Expedition, including a total of 12 stations. The dataset includes the following contents: station number, longitude, latitude, survey date, survey time, sampling depth, and total phosphorus (P).

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背景与挑战

背景概述

该数据集来自2012年中国第5次北极科学考察，专门分析海水总磷（TP）数据，包含12个站位的详细信息，如站位号、经纬度、调查日期、时间和采样深度，用于研究北极海洋环境中磷的分布及其对海洋初级生产力的影响。数据集具有明确的时空范围和结构化数据字段，有助于评估海洋水质和生态演变过程。