Carbon and nutrient sequestration in small impoundments: a regional study with global implications

IF 2.7 3区环境科学与生态学 Q1 LIMNOLOGY

Inland Waters Pub Date : 2023-10-11 DOI:10.1080/20442041.2023.2265799

John R. Jones, Kimberly Pope-Cole, Daniel V. Obrecht, J.D. Harlan, Lesley B. Knoll, John A. Downing

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Abstract

AbstractThe rate of sequestration of carbon, nitrogen and phosphorus by lentic ecosystems informs both the global carbon budget and the remediation of eutrophication. Here we estimate carbon, nitrogen and phosphorus burial in sediments of 34 lakes in Missouri, USA, and compare them to those found in other agricultural areas as well as to global estimates. Mean sediment accumulation rates varied by orders of magnitude among study regions, with the largest values (average 6 cm y-1) in impounded systems surrounded by intensive agriculture. Rates increased with the drainage ratio and decreased with the abundance of other surface water in the catchment (e.g., farm ponds). Average organic carbon burial differed by an order of magnitude among study regions (average 150-2100 g m-2 y-1) with differences related to the drainage ratio and eutrophication. Organic carbon burial was strongly correlated with burial rates of nitrogen and phosphorus. Comparisons with a diversity of global data show that many Midwestern USA impoundments have extremely high rates of biogeochemical burial likely due to the details of agricultural cropping systems, landscape configuration, and soil characteristics.Keywords: carbonlakesnitrogenphosphorussedimentsequestrationDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. AcknowledgementsFunding for the Missouri data was provided by the Missouri Department of Natural Resources and Missouri Agricultural Experiment Station and Food & Agriculture Research Institute. Specific appreciation is extended to Anthony Thorpe and Carol Pollard.

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小水库的碳和营养固存:具有全球意义的区域研究

摘要生态系统对碳、氮、磷的固存速率反映了全球碳收支和富营养化的修复。在这里，我们估计了美国密苏里州34个湖泊沉积物中碳、氮和磷的埋藏，并将它们与其他农业区以及全球估计值进行了比较。在研究区域之间，平均泥沙积累速率有数量级的差异，在集约化农业包围的蓄水系统中，其值最大(平均为6 cm -1)。发病率随排水比的增加而增加，随集水区其他地表水(如农场池塘)的丰富而减少。各研究区平均有机碳埋深存在一个数量级差异(平均150 ~ 2100 g m-2 y-1)，差异与排水比和富营养化有关。有机碳埋深与氮、磷埋深呈正相关。与全球数据多样性的比较表明，美国中西部的许多水库具有极高的生物地球化学埋藏率，这可能是由于农业种植系统、景观配置和土壤特征的细节。关键词:碳湖氮磷沉积封存免责声明作为对作者和研究人员的服务，我们提供此版本的已接受稿件(AM)。在最终出版版本记录(VoR)之前，将对该手稿进行编辑、排版和审查。在制作和印前，可能会发现可能影响内容的错误，所有适用于期刊的法律免责声明也与这些版本有关。密苏里州的数据由密苏里州自然资源部、密苏里州农业实验站和食品与农业研究所提供资金。特别赞赏的是安东尼·索普和卡罗尔·波拉德。

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来源期刊

Inland Waters LIMNOLOGY-MARINE & FRESHWATER BIOLOGY

CiteScore

6.10

自引率

9.70%

发文量

审稿时长

>12 weeks

期刊介绍： Inland Waters is the peer-reviewed, scholarly outlet for original papers that advance science within the framework of the International Society of Limnology (SIL). The journal promotes understanding of inland aquatic ecosystems and their management. Subject matter parallels the content of SIL Congresses, and submissions based on presentations are encouraged. All aspects of physical, chemical, and biological limnology are appropriate, as are papers on applied and regional limnology. The journal also aims to publish articles resulting from plenary lectures presented at SIL Congresses and occasional synthesis articles, as well as issues dedicated to a particular theme, specific water body, or aquatic ecosystem in a geographical area. Publication in the journal is not restricted to SIL members.