第二次青藏科考湖泊水质数据集（2020）

数据集中包含了2020年采集的羊卓雍错、珍错、空母错、普莫雍错、浪措、昂仁金错、打加错、帕茹错、嘎荣错、嘎仁错、蔡几错、齐格错、扎日南木措、达瓦错、塔若错、扎布耶茶卡、昂拉仁错、仁青休布措、别若则错、达绕错、吉多错、洞措、昂孜措、当穹错、当惹雍错、兹格塘错共计26个湖泊采样经纬度、盐度、水温、深度、透明度、总悬浮颗粒物、叶绿素a、总氮、总磷数据集。其中总氮总磷通过消解后通过Shimadzu UV-Vis 2550 PC分光光度计比色法完成测定，叶绿素a浓度则通过热乙醇法完成测定，通过分光光度法完成测定。总悬浮颗粒物通过高精度电子天平完成称量结合过滤体积完成计算、水温、盐度通过现场采用YSI EXO2完成测定，透明度则采用30 cm黑白赛克盘完成测定。透明度误差在0.05 m以内，悬浮颗粒物浓度误差在0.01 mg/L，总氮浓度误差在0.01 mg/L，总磷及叶绿素a浓度误差在0.001 mg/L，水温误差为0.1摄氏度。

This dataset contains sampling data (including longitude and latitude, salinity, water temperature, depth, transparency, total suspended solids, chlorophyll-a, total nitrogen, and total phosphorus) for a total of 26 lakes collected in 2020: Yangzhuoyong Co, Zhen Co, Kongmu Co, Pumoyum Co, Lang Co, Angrenjin Co, Dajia Co, Paru Co, Garong Co, Garen Co, Caiji Co, Qige Co, Zhari Namco, Dawa Co, Taro Co, Zabuye Caka, Anglarin Co, Renqinxoiub Co, Bioroze Co, Darao Co, Jiduo Co, Dong Co, Angzi Co, Dangra Yumco, Dangrei Co, and Zigetang Co. Total nitrogen and total phosphorus were determined via colorimetric analysis using a Shimadzu UV-Vis 2550 PC spectrophotometer after acid digestion. Chlorophyll-a concentration was measured using the hot ethanol extraction method followed by spectrophotometric determination. Total suspended solids were quantified by weighing the filtered residue with a high-precision electronic balance and combining the result with the measured filtered water volume. Water temperature and salinity were measured in-situ using a YSI EXO2 multi-parameter water quality meter. Transparency was assessed using a 30 cm black-and-white Secchi disk. The measurement errors are controlled within the following ranges: transparency ≤ 0.05 m, total suspended solids concentration ≤ 0.01 mg/L, total nitrogen concentration ≤ 0.01 mg/L, total phosphorus and chlorophyll-a concentrations ≤ 0.001 mg/L, and water temperature ≤ 0.1 °C.

搜集汇总

背景与挑战

背景概述

该数据集包含2020年青藏高原26个湖泊的水质数据，涵盖盐度、水温、深度、透明度、总悬浮颗粒物、叶绿素a、总氮、总磷等参数，测量方法严谨，数据精度高，适用于湖泊水质研究。