کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4551851 1328326 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hypoxia in the East China Sea: One of the largest coastal low-oxygen areas in the world
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Hypoxia in the East China Sea: One of the largest coastal low-oxygen areas in the world
چکیده انگلیسی

Anoxia and hypoxia have been widely observed in estuarine and coastal regions over the past few decades; however, few reports have focused on the East China Sea (ECS). In June and August 2003, two cruises sampled at stations covering almost the entire shelf of the ECS to examine hypoxic events and their potential causes. In August, DO concentrations <2–3 mg l−1 covered an area estimated at greater than 12,000 km2 (or 432 km3 volume). In contrast, water column DO concentrations exceeded 4 mg l−1 throughout most of the shelf region. A sharp density gradient was observed under the mixed layer in August, restricting vertical re-aeration across this strong pycnocline. Oxygen depletion events, such as that described here for the ECS shelf, are fueled by decomposition of newly produced marine and river-borne biogenic substances (as well as older residual organic matter) deposited to the bottom waters.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Environmental Research - Volume 64, Issue 4, October 2007, Pages 399–408
نویسندگان
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