A national-scale data set for dissolved carbon and its spatial pattern in lakes and reservoirs across China

Zhidan Wen; Kaishan Song; Lili Lyu; Chong Fang; Yingxin Shang; Ge Liu; Jia Du

doi:10.1038/s41597-020-0419-5

A national-scale data set for dissolved carbon and its spatial pattern in lakes and reservoirs across China

Sci Data. 2020 Mar 9;7(1):82. doi: 10.1038/s41597-020-0419-5.

Authors

Zhidan Wen¹, Kaishan Song^{2

3}, Lili Lyu¹, Chong Fang^{1

4}, Yingxin Shang^{1

4}, Ge Liu¹, Jia Du¹

Affiliations

¹ Northeast Institute of Geography and Agroecology, CAS, Changchun, 130102, China.
² Northeast Institute of Geography and Agroecology, CAS, Changchun, 130102, China. songks@neigae.ac.cn.
³ School of Environment and Planning, Liaocheng University, Liaocheng, 252000, China. songks@neigae.ac.cn.
⁴ University of Chinese Academy of Sciences, Beijing, 100049, China.

Abstract

A dissolved carbon (DC) data set, including dissolved organic carbon (DOC) and dissolved inorganic carbon (DIC), from 224 lakes (513 stations) and 141 large reservoirs (337 stations) across China is presented in this study. In addition to DC, the data set also includes results for electrical conductivity (EC), total phosphorus (TP), chlorophyll-a and transparency. The impact of trophic status and EC gradient on DC concentration in water bodies are discussed. Results from our investigation indicate that DC in saline (EC > 1000 μS cm^-1) water bodies (mean ± S.D, 297.13 ± 356.14 mg L^-1, n = 186) are much higher than those in fresh water bodies (79.55 ± 199.34 mg L^-1, n = 669). Similarly, eutrophic water bodies (n = 552) exhibited higher DC concentrations than mesotrophic (n = 215) and oligotrophic water bodies (n = 85); DC in lakes (158.445 ± 286.52 mg L^-1, n = 513) was significantly higher than DC in reservoirs (37.83 ± 37.53 mg L^-1, n = 337). All data used in this investigation is accessible online.

Publication types

Research Support, Non-U.S. Gov't

Abstract

Publication types

Grants and funding