山东大沽河溶解性碳的时空分布及影响因素

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	山东大沽河溶解性碳的时空分布及影响因素
	丁冰岚 1,3; 姜德娟 1; 李新举 3; 夏云 2
刊名	农业环境科学学报
	2022
卷号	41 期号:3 页码:670-680
关键词	溶解性无机碳(DIC) 溶解性有机碳(DOC) 时空分布 CO_(2)分压(pCO_(2)) 大沽河
ISSN号	1672-2043
其他题名	Tempo-spatial distribution and its influencing factors of dissolved carbon in the Dagu River, Shandong Province
文献子类	期刊论文
英文摘要	To understand the dynamic distribution and biogeochemical processes of carbon in rivers, seasonal and spatial characteristics of dissolved carbon(DIC and DOC)concentrations in the Dagu River, Shandong Peninsula, were investigated based on water samplings and analysis from 2018 to 2019. Distribution and its influencing factors of pCO_2 were evaluated. The results showed that:the DIC concentration in the Dagu River ranged from 2.55 mg·L~(-1) to 34.08 mg·L~(-1) with an average of(12.977.25)mg·L~(-1). The DIC concentration was affected by geological environment, climatic and hydrological conditions, and cascade damming, which significantly varied over time and space(P<0.05);DIC was highest during winter and increased towards the downstream. The DOC concentration ranged from 4.22 mg·L~(-1) to 62.62 mg·L~(-1) with an average of(15.3410.24)mg·L~(-1). The DOC concentration exceeded the DIC concentration, indicating that dissolved carbon was dominated by DOC rather than DIC in the Dagu River. Moreover, there was no obvious seasonal and spatial variation for DOC, mainly owing to intense human activities, such as land use type, sewage discharge, and river damming. Thirty-five percent of the samples indicated as a source of atmospheric CO_2. pCO_2 was higher in the upper reaches than in the middle and lower reaches, and higher in summer and autumn than in spring and winter(P<0.05). In general, strong photosynthesis in the Dagu River resulted in high DOC level but low pCO_2. Therefore, the Dagu River generally displayed atmospheric CO_2 sink.
语种	中文
CSCD记录号	CSCD:7189237
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/34179]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.中国科学院海岸带环境过程与生态修复重点实验室,中国科学院烟台海岸带研究所,山东烟台264003; 2.西北农林科技大学资源环境学院,陕西杨凌712100 3.山东农业大学资源与环境学院,山东泰安271018;
推荐引用方式 GB/T 7714	丁冰岚,姜德娟,李新举,等. 山东大沽河溶解性碳的时空分布及影响因素[J]. 农业环境科学学报,2022,41(3):670-680.
APA	丁冰岚,姜德娟,李新举,&夏云.(2022).山东大沽河溶解性碳的时空分布及影响因素.农业环境科学学报,41(3),670-680.
MLA	丁冰岚,et al."山东大沽河溶解性碳的时空分布及影响因素".农业环境科学学报 41.3(2022):670-680.