نتایج جستجو برای: south peat c3

تعداد نتایج: 229034  

2014
D Tetzlaff C Birkel J Dick J Geris C Soulsby

We examined the storage dynamics and isotopic composition of soil water over 12 months in three hydropedological units in order to understand runoff generation in a montane catchment. The units form classic catena sequences from freely draining podzols on steep upper hillslopes through peaty gleys in shallower lower slopes to deeper peats in the riparian zone. The peaty gleys and peats remained...

2014
François De Vleeschouwer Heleen Vanneste Dmitri Mauquoy Natalia Piotrowska Fernando Torrejón Thomas Roland Ariel Stein Gaël Le Roux

Metallurgical activities have been undertaken in northern South America (NSA) for millennia. However, it is still unknown how far atmospheric emissions from these activities have been transported. Since the timing of metallurgical activities is currently estimated from scarce archaeological discoveries, the availability of reliable and continuous records to refine the timing of past metal depos...

2000
Oliver Kracht Gerd Gleixner

Elemental analyses (H, N, C, O, S), bulk isotope analyses (C, N) and C content of pyrolysis products from Sphagnum moss, underlying peat from a bog and the bog water (Hohlohsee, Black Forest, Germany) were performed to identify humi®cation processes in the early diagenesis of peat formation and to determine the origin of dissolved organic matter (DOM) in the bog lake. Atomic ratios of bulk elem...

2006
TIIT HANG SIIM VESKI ATKO HEINSALU Hang

This article reports the first discovery of middle Holocene cryptotephra from a peat sequence in Estonia, eastern Baltic. Two sequences, Mustjärve and Parika (located 110 km apart), were chosen for a pilot study aimed at finding traces of tephra fallout during the middle Holocene. Peat accumulation at both sites started in the early Holocene (c. 9500 9000 C yr BP; c. 11 000 10 000 cal. yr BP) a...

2017
Balathandayuthabani Panneer Selvam Jean-François Lapierre Francois Guillemette Carolina Voigt Richard E. Lamprecht Christina Biasi Torben R. Christensen Pertti J. Martikainen Martin Berggren

Global warming can substantially affect the export of dissolved organic carbon (DOC) from peat-permafrost to aquatic systems. The direct degradability of such peat-derived DOC, however, is poorly constrained because previous permafrost thaw studies have mainly addressed mineral soil catchments or DOC pools that have already been processed in surface waters. We incubated peat cores from a palsa ...

2015
A. D. Sakti S. Tsuyuki

Indonesian peatland, one of the world’s largest tropical peatlands, is facing immense anthropogenic pressures such as illegal logging, degradation and also peat fires, especially in fertile peatlands. However, there still is a lack of appropriate tools to assess peatland land cover change. By taking Pelalawan district located in Sumatra Island, this study determines number of land cover endmemb...

2008
Joseph Modayil Richard Levinson Craig Harman David Halper Henry A. Kautz

We are investigating how sensors can improve a portable reminder system (PEAT) that helps individuals accomplish their daily routines. PEAT is designed for individuals who have difficulty remembering when to perform activities because of cognitive impairments from strokes or other brain injuries. These impairments can cause a significantly reduced quality of life for afflicted individuals and t...

محبوب خمامی, علی , محمدی ترکاشوند, علی , کرمی, عذرا ,

Dut to econemic and envaironmental limitiations of peat moss as a growth medium for ornamental plants, researchers seek an apporiate alternative in flower and plants industry. Zeolite, due to its high potential in water holding capcity and cation enchange capacity, has the ability to replace peat moss. To investigate the posibility of subtituting peat moss by zeolite as a proper medium for grow...

2001
John C. Bouwkamp Xianzhen Li

Peat moss is the most widely used source of organic matter for growing horticultural crops in the United States. The demand for peat as a substrate constituent for bedding and pot plants has remarkably increased in recent years, thus reducing the availability and increasing cost (Nappi and Barberis, 1993). Composts may serve as qualitatively and economically as competitive alternative sources o...

Journal: :Water research 2014
Yuliya Kalmykova Nashita Moona Ann-Margret Strömvall Karin Björklund

Landfill leachates are repeatedly found contaminated with organic pollutants, such as alkylphenols (APs), phthalates and polycyclic aromatic hydrocarbons (PAHs) at levels exceeding water quality standards. It has been shown that these pollutants may be present in the colloidal and truly dissolved phase in contaminated water, making particle separation an inefficient removal method. The aim of t...

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