Meredith A. Holgerson, Nicholas E. Ray, Chelsea Russ
{"title":"High rates of carbon burial linked to autochthonous production in artificial ponds","authors":"Meredith A. Holgerson, Nicholas E. Ray, Chelsea Russ","doi":"10.1002/lol2.10351","DOIUrl":null,"url":null,"abstract":"<p>Ponds are globally abundant and important to the global carbon cycle. Although ponds have large greenhouse gas emissions, they also sequester carbon in their sediments. Here, we studied organic carbon (OC) burial rates in 22 temperate experimental ponds with negligible watersheds, where carbon sequestration derives solely from autochthonous primary production. The ponds were built identically in 1964 and have since experienced different management strategies, allowing us to test how management actions influence burial rates. On average, the ponds accumulated 67.1 g OC m<sup>−2</sup> yr<sup>−1</sup> (range 38.3–113.6 g OC m<sup>−2</sup> yr<sup>−1</sup>)—about double the global average burial rate for lakes and similar to global averages for wetlands. Carbon burial rates were higher in ponds with macrophytes, fish, and higher N : P loads. We contend that the global carbon sink for inland waters may be substantially underestimated due to the undervaluation of OC burial in natural and artificial ponds.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":null,"pages":null},"PeriodicalIF":5.1000,"publicationDate":"2023-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10351","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Limnology and Oceanography Letters","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/lol2.10351","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"LIMNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Ponds are globally abundant and important to the global carbon cycle. Although ponds have large greenhouse gas emissions, they also sequester carbon in their sediments. Here, we studied organic carbon (OC) burial rates in 22 temperate experimental ponds with negligible watersheds, where carbon sequestration derives solely from autochthonous primary production. The ponds were built identically in 1964 and have since experienced different management strategies, allowing us to test how management actions influence burial rates. On average, the ponds accumulated 67.1 g OC m−2 yr−1 (range 38.3–113.6 g OC m−2 yr−1)—about double the global average burial rate for lakes and similar to global averages for wetlands. Carbon burial rates were higher in ponds with macrophytes, fish, and higher N : P loads. We contend that the global carbon sink for inland waters may be substantially underestimated due to the undervaluation of OC burial in natural and artificial ponds.
期刊介绍:
Limnology and Oceanography Letters (LO-Letters) serves as a platform for communicating the latest innovative and trend-setting research in the aquatic sciences. Manuscripts submitted to LO-Letters are expected to present high-impact, cutting-edge results, discoveries, or conceptual developments across all areas of limnology and oceanography, including their integration. Selection criteria for manuscripts include their broad relevance to the field, strong empirical and conceptual foundations, succinct and elegant conclusions, and potential to advance knowledge in aquatic sciences.