نتایج جستجو برای: peat and swamps

تعداد نتایج: 16828534  

Journal: :journal of ornamental plants 2015
m. basirat

in order to evaluate the possibility use of palm waste cellulose as a substitute substrate for growing pot plants, an experiment was conducted in completely randomized block design with 6 replication and six treatments on aglaonema sp. the treatments were 5 levels including 0, 25, 50, 75 and 100 palm celluloid wastes mixed with different rates of some amendments such as peat, coconut coir, perl...

Journal: :Nature Reviews Earth & Environment 2022

Tropical peatlands store around one-sixth of the global peatland carbon pool (105 gigatonnes), equivalent to 30% held in rainforest vegetation. Deforestation, drainage, fire and conversion agricultural land threaten these ecosystems their role sequestration. In this Review, we discuss biogeochemistry tropical impacts ongoing anthropogenic modifications. Extensive are found Southeast Asia, Congo...

2011

Tropical peatlands play an important role in the global carbon cycling but little is known about factors regulating carbon dioxide (CO2) and methane (CH4) fluxes from these ecosystems. Here, we test the hypotheses that (i) CO2 and CH4 are produced mainly from surface peat and (ii) that the contribution of subsurface peat to net C emissions is governed by substrate availability. To achieve this,...

Journal: :FEMS microbiology ecology 1999
Kirschner Parker Falkinham

Mycobacterium avium, an environmental, opportunistic pathogenic mycobacterium, has been isolated frequently and in high numbers from waters in Finland and from acid, brown water swamps of the southeastern coastal USA. M. avium has also been recovered in high numbers from Finnish drinking water and frequently isolated from Finnish AIDS patients. Boreal forests and brown water swamps are similar ...

2001
Jaya

During 1997 and 1998 intensive land irrigation and clearance activities in Indonesia, combined with a greatly extended ENSO-related dry season, created conditions for several months of forest fires. Fires were particularly intense in the lowland peatlands of Kalimantan and Sumatra where both forest and peat fires occurred. A 24,910 km (2.491 MHa) study area in Central Kalimantan has been used t...

Journal: :Austrian Journal of Earth Sciences 2021

Abstract In the course of field investigations and formalisation Quaternary deposits in Lake Neusiedl/Seewinkel Hanság area Osli Formation is designated as new formal lithostratigraphic unit. It covers an ~200 square kilometres and, historic times, wetlands such swamps peat bogs extended from Waasen south-eastern Seewinkel Plain to (Kisalföld). Due missing stratigraphic data this formation cann...

2013
Werner E. Holzinger Lydia Schlosser

The first overview on the Auchenorrhyncha fauna of peat bogs of the Austrian Bohemian Forest is presented. Seven oligotrophic peat bog sites were studied in 2011 by suction sampler ("G-Vac") and 93 Auchenorrhyncha species (with 7465 adult specimens) were recorded. Eleven species (about 18 % of the individuals) are tyrphobiontic or tyrphophilous. The relative species abundance plot is not very s...

2017
Kristen Cooksey-Stowers Marlene B. Schwartz Kelly D. Brownell

This paper investigates the effect of food environments, characterized as food swamps, on adult obesity rates. Food swamps have been described as areas with a high-density of establishments selling high-calorie fast food and junk food, relative to healthier food options. This study examines multiple ways of categorizing food environments as food swamps and food deserts, including alternate vers...

2009
CATALIN BALAN DOINA BILBA

Batch sorption experiments were performed for the removal of chromium(III) ions from aqueous solutions using Romanian Sphagnum moss peat (untreated and treated with NaCl solution) as sorbent. In order to establish the best conditions for the sorption of chromium(III), the influence of initial pH, contact time, peat dose and metal ion concentration was investigated. The Freundlich, Langmuir and ...

Journal: :FEMS microbiology letters 2004
Johan W H Weijers Stefan Schouten Marjolein van der Linden Bas van Geel Jaap S Sinninghe Damsté

The presence and distribution of isoprenoid glycerol dialkyl glycerol tetraethers (GDGTs), lipids that constitute the membranes of Archaea, have been investigated in a 50-cm long core from a Swedish peat bog. In the acrotelm, the periodically water saturated and thus oxic upper layer of the peat bog, only minor amounts of GDGTs were found. These amounts increase considerably in the catotelm, th...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید