تلفن: ۰۴۱۴۲۲۷۳۷۸۱
تلفن: ۰۹۲۱۶۴۲۶۳۸۴

دانلود رایگان مقاله انگلیسی مواد آلی در دریاچه های کوچک سیخوته آلین اندوخته زیستکره – نشریه الزویر

عنوان فارسی: مواد آلی در دریاچه های کوچک سیخوته آلین اندوخته زیستکره
عنوان انگلیسی: Organic Matter in the Small Lakes of the Sikhote-Alin Biosphere Reserve
تعداد صفحات مقاله انگلیسی : 5 تعداد صفحات ترجمه فارسی : ترجمه نشده
سال انتشار : 2015 نشریه : الزویر - Elsevier
فرمت مقاله انگلیسی : PDF کد محصول : E1009
محتوای فایل : PDF حجم فایل : 500 Kb
رشته های مرتبط با این مقاله: زیست شناسی و شیمی
گرایش های مرتبط با این مقاله: شیمی آلی، زیست فناوری دریا و شیمی محیط زیست
مجله: دستاوردها در علوم زندگی
دانشگاه: فدراسیون روسیه
کلمات کلیدی: دریاچه های کوچک، سیخوته آلین ذخیره گاه زیستکره، ماده آلی، مواد آلی حل شده، ذرات معلق آلی، SUVA 254، فلورسنس
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چکیده

Abstract

The carbon concentration and distribution in dissolved organic matter (DOM) and particulate organic matter (POM) in the lagoon lakes Blagodaty and Golubichnoe located in the Sikhote-Alin Nature Reserve and Lake Vaskovskoye оf the Dalnegorsk urban district of Primorsky Krai were analysed using data collected in July–August of 2011–2014. The content of DOM carbon ranged from 1.9 to 8.6 mg/l, representing 68–90% of the total organic carbon. Reductions in the POM carbon concentration and organic carbon percentage of the particulate matter in the sequence of the lakes Blagodaty–Golubichnoe–Vaskovskoye were determined. Analysis of the SUVA254 dynamics and the fluorescence intensity revealed a trend of simplification of the molecular structure of DOM from the surface to a depth of 1 to 1.5 m in lakes Golubichnoe and Vaskovskoye as well as at the northern station in the brackish Blagodaty Lake

نتیجه گیری

Results and Discussion

In 2011–2014, the hydrological situation in the area was quite dynamic (Weather report RP5). The spring and summer of 2012 followed the dry winter of 2011. However, there was abundant rainfall in Primorye in the autumn of 2012, and the soils were humid in the first half of 2013. Therefore, when a cyclone brought more than 670 mm of rain in many areas of the southern Far East in July, 2013, catastrophic floods followed. According to our estimates, the rise of the water level in Vaskovskoe Lake was approximately 2 m. Flooding was caused in part because large amounts of water were dropped during this time from the Dalnegorsk reservoirs into the Rudnaya River, where a creek flows from the lake. The concentration of total organic carbon varied between 2 and 12.2 mg/l. The highest content was found in the Blagodati and Golubichnoe Lakes due to the inflow of organic matter related to bog creation, and the lowest content was in the water of Vaskovskoe Lake (Table 2). The carbon content in DOM was 2.3–8.4 mg/l (average of 5.2 mg/l), and so 68–90% of the total carbon was found in the dissolved organic matter of the lakes.