Changes in dissolved inorganic carbon recorded by carbon isotopes of the living Anularya mansuyi shells in Lake Qilu

被引：0

作者：

Jiang, Geping ^{[1
,2
]}

Lei, Guoliang ^{[1
,2
,3
]}

Zhu, Yun ^{[1
,2
,3
]}

Zhang, Wenxiang ^{[4
]}

Yu, Yuan ^{[1
,2
]}

Xu, Lihong ^{[1
,2
]}

Du, Yao-Hua ^{[1
,2
]}

Li, Quancong ^{[1
,2
]}

Sun, Wanting ^{[1
,2
]}

机构：

[1] Key Laboratory of Humid Subtropical Eco-geographical Processes, The Ministry of Education, Fujian Normal University, Fuzhou

[2] School of Geographical Science, School of Carbon Neutrality Future Technology, Fujian Normal University, Fuzhou

[3] Stable Isotope Center, Fujian Normal University, Fuzhou

[4] Yunnan Provincial Key Laboratory of Geographical Process and Environmental Change on the Plateau, Yunnan Normal University, Kunming

来源：

Hupo Kexue/Journal of Lake Sciences | 2024年 / 36卷 / 05期

关键词：

Anularya mansuyi; carbon isotope; dissolved inorganic carbon; Lake Qilu;

D O I：

10.18307/2024.0524

中图分类号：

学科分类号：

摘要：

Carbon isotope of gastropod shell carbonates in lakes is directly correlated with dissolved inorganic carbon (DIC) in lake water, providing vital signals for the regional carbon cycle in lakes. Lakes are widely distributed in the central Yunnan region, and little is known about the DIC characteristics of these lakes. Anularya mansuyi shells are a unique genus of the lakes in central Yunnan Province. Here, two living Anularya mansuyi shells (QLH-A and QLH-B) were collected from Lake Qiiu and their carbon isotope composition of shell carbonate (8 Cshell), longitudinally along their growth span were studied to reveal possible dissolved inorganic carbon shifts in Lake Qilu's waters. Results showed that; (1) The 8 Cs]l(.u values could be used to identify the two Anularya mansuyi shells' growth in the mother's internal environment, the average values of 8 Cs,e\ were -3.78%o and -5.55%o, with ranges of variation of 2.07%o and 3.03%o, respectively. In lake water environment, the average 8 Csh).|j values of the two shells were -2.90%o and -3.28%o, with ranges of variation of 1.81%<> and 1.74%o, respectively. (2) During the period when Anularya mansuyi grows in the lake water, the 8 Csh(,u recorded the 8 CDic characteristics of lake water DIC, indicating that the DIC of the Lake Qilu water body was mainly affected by atmospheric exchange and the biological system. The 8 CDIC values of DIC showed no significant seasonal variation in Lake Qilu. (3) Followed algal bloom, the organic matter decomposition caused by the death of a-quatic algae in lake system would lead to negative 8 CD]C. Basing 8 CDIC records of 2012-2013, the negative 8 C^u during the second half of 2013 was consistent with the Yunnan Drought Event in 2013 and revealed the 8 Csh,4| of the Anularya mansuyi had the potential to record significant changes in the lake ecosystem. The fossil shells of Anularya mansuyi are widely distributed around lakes in central Yunnan, and these fossil shells can be used as potential documents to identify the DIC characteristics of water bodies and changes in lake ecosystems (lining geological historical periods. © 2024 by Journal of Lake Sciences.

引用

页码：1436 / 1446

页数：10

共 60 条

[1]

Chen |G, Yang HQ, Zeng Y, Et al., Combined use of radiocarbon and stable carbon isotope to constrain the sources and cycling of particulate organic carbon in a large freshwater lake, China, Science of the Total Environment, 625, pp. 27-38, (2018)

[2]

Li YH, Ge G, Hu CH., Sources, transportations and variation characteristics of dissolved inorganic carbon in Lake Poyang, China, J Lake Sci, 34, 2, pp. 528-537, (2022)

[3]

Yan H, Dettman DL, Chen J, Et al., 8 C in Corbicula fluminea shells: Implication for dissolved inorganic carbon reconstruction, Geochemical Journal, 54, 2, pp. 71-79, (2020)

[4]

Lei YB, Yao TD, Sheng YW, Et al., Characteristics of 8 ^DIC m lakes on the Tibetan Plateau and its implications for the carbon cycle, Hydrological Processes, 26, 4, pp. 535-543, (2012)

[5]

Schwalb A, Dean W, Glide H, Et al., Benthic ostracode 5 C as sensor for earlv Holocene establishment oi modern circulation patterns in Central Europe, Quaternary Science Reviews, 66, pp. 112-122, (2013)

[6]

Pelechaty M, Apolinarska K, Pukacz A, Et al., Stable isotope composition of Chara rudis incrustation in Lake Jasne, Poland, Hydrobiologia, 656, 1, pp. 29-42, (2010)

[7]

Yan H, Li XQ, Zhou H., Problems and research progress in the analysis oi biological shell placement, Earth and Environment, 3, pp. 207-214, (2007)

[8]

Tall L, Vv iecliert U, Zhang HC, Et al., Oxygen and carbon isotope patterns archived in shells of the aquatic gastropod Radix

[9]

Hydrologic and climatic signals across the Tibetan Plateau in sub-monthly resolution, Quaternary International, 290, 291, pp. 282-298, (2013)

[10]

McConnaughey TA, Burdett J, Whelan JF, Et al., Carbon isotopes in biological carbonates

← 1 2 3 4 5 6 →