摘要: |
A study just published in the journal Nature shows how carbon is stored and transported through the intricacy of inland and coastal waterways-and how important those waterways are to global carbon budgets. They could carry up to 50 percent more carbon than was previously thought. The study, titled "The Land-To-Ocean Loops of The Global Carbon Cycle" by Pierre Regnier, Laure Resplandy, Raymond G. Najjar and Philippe Ciais appears in the March 17 issue. Most global carbon-budgeting efforts assume a linear flow of water from the land to the sea, which, according to the article, ignores the complex interplay between streams, rivers, lakes, groundwater, estuaries, mangroves and more. Resplandy, an assistant professor of geo-sciences at the High Meadows Environmental Institute at Princeton University, and her collaborators show how terrestrial and marine ecosystems have a powerful influence on climate by regulating the level of atmospheric carbon dioxide. These ecosystems are often viewed as disconnected from each other, which ignores the transfer of carbon from land to the open ocean through a complex network of water bodies-the continuum of streams, rivers, estuaries and other bodies carrying water from land to the sea. |