THE DISTRIBUTION AND STABLE CARBON ISOTOPIC COMPOSITION OF DISSOLVED ORGANIC-CARBON IN ESTUARIES

被引：135

作者：

PETERSON, B ^{[1
]}

FRY, B ^{[1
]}

HULLAR, M ^{[1
]}

SAUPE, S ^{[1
]}

WRIGHT, R ^{[1
]}

机构：

[1] GORDON COLL,DEPT BIOL,WENHAM,MA 01984

来源：

ESTUARIES | 1994年 / 17卷 / 1B期

关键词：

D O I：

10.2307/1352560

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The distributions of dissolved organic carbon (DOC) and the natural carbon isotope ratio of DOC (DOC)-C-13 in estuaries reflect the predominant sources and sinks of organic matter from both allochthonous and autochthonous origins. The traditional view is that DOC in land-margin ecosystems reflects mainly the mixing of land-derived and oceanic DOC. However, this view is not consistent with the bulk of our data from a survey of DOC and (DOC)-C-13 distributions in estuaries on the East and Gulf coasts of the USA. While it is accurate that the DOC in estuaries includes material derived from land and from the ocean, the distributions of DOC and (DOC)-C-13 in several estuaries reflect additional DOC inputs from estuarine phytoplankton and tidal marshes. Even when DOC concentrations were distributed conservatively, the isotopic composition of the DOC revealed the existence of a dynamic cycle of DOC input and removal in some systems.

引用

页码：111 / 121

页数：11

共 28 条

[1] FATE OF NATURAL AND ANTHROPOGENIC DISSOLVED ORGANIC-CARBON IN THE MACROTIDAL ELORN ESTUARY (FRANCE) [J].