نتایج جستجو برای: peat and swamps
تعداد نتایج: 16828534 فیلتر نتایج به سال:
in this study, we focused on detailed studies on micromorphological and mineralogical properties of three types of peat and swamp, to compare these different ecological area together. to achieve this goal, samples from a highland peat swamp (ghaleh-ghafeh ps), a peat swamp forest (suteh psf) and a costal swamp (galougah cs) in golestan province, north of iran have been considered. these studies...
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Abstract Swamps are a highly significant wetland type in North America both terms of areal extent and their role terrestrial carbon cycling. These wetlands, characterized by woody vegetation cover, encompass diverse suite ecosystems, including broad-leaved, needle-leaved, mixedwood or shrub/thicket swamps. Uncertainties the swamps uptake release continue to be substantial due insufficient data ...
Wetlands are the largest natural source of atmospheric methane. Here, we assess controls on methane flux using a database of approximately 19 000 instantaneous measurements from 71 wetland sites located across subtropical, temperate, and northern high latitude regions. Our analyses confirm general controls on wetland methane emissions from soil temperature, water table, and vegetation, but also...
Sydney Basin, New South Wales, Australia. Some of Temperate Highland Peat Swamps on Sandstone Basin overlie existing underground mining areas, which may impact the hydrological fluxes into and out swamps. Understanding predicting these potential impacts their consequences for swamps’ vegetation requires knowledge relevant physical properties soil, however such is almost completely absent from l...
The peat-forming wetland forests of Amazonia are characterized by high below-carbon stocks and supply fruit, fibres timber to local communities. Predicting the future these ecosystem services requires understanding how hydrological conditions related tree species composition presence, or absence, peat. Here, we use continuous measurements water table depth over 2.5 years manual pore-water pH el...
Peat soil is widely distributed in more than 500 countries around the world, covering an area of over 4 million square kilometers, among which distribution China about 40000 and most swamps forests. with high content organic matter, poor engineering properties low bearing capacity, very unfavorable to safety functionality infrastructure construction. The Belt Road, other two parts peat are stud...
Peat and muck soils have unique biological, physical, and chemical properties, and on them the common drainage and management practices that are used on mineral soils are not suitable. Biologically the organic soils support hosts of micro-organisms, mostly bacteria, which are largely responsible for the formation and alteration of the peat. The action of the anaerobic micro-organisms builds up ...
In Australia little direct information about past human activity has been obtained from wetlands, but they are a valuable archive of change through time against which the archaeological record from middens and rock shelters can be compared. The constant movement of small bands of hunter-gatherers has meant that there is little sign of intensive occupation, and the use of wetlands lay in their a...
Please cite this article in press as: Watts, A.C. Or Forest Ecol. Manage. (2012), http://dx.doi.org/1 Swamps, peatlands, and other wetland ecosystems can store vast amounts of carbon in organicallyderived peat soils. Wildfires during severe droughts can produce smoldering combustion in these soils, releasing large quantities of carbon to the atmosphere and causing dramatic changes at the local ...
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