نتایج جستجو برای: north peat c2

تعداد نتایج: 183007  

Ghasemi Ghehsare, M., Norouzi Faradonbeh, S., Reezi, S.,

To evaluate the effect of different culture media on growth indices of Pelargonium ×hortorum “Maverick Star” in plug culture, a greenhouse experiment was carried out based on a completely randomized design with seven treatments and four replications. The treatments were seven different substrates including peat moss (100%), cocopeat (100%), peat moss + cocopeat (60%+40%), peat moss + cocopeat (...

Journal: :Applied and environmental microbiology 2001
S B Ranneklev E Bååth

The temperature-driven adaptation of the bacterial community in peat was studied, by altering temperature to simulate self-heating and a subsequent return to mesophilic conditions. The technique used consisted of extracting the bacterial community from peat using homogenization-centrifugation and measuring the rates of thymidine (TdR) or leucine (Leu) incorporation by the extracted bacterial co...

Journal: :Journal of environmental quality 2003
Shabnam Qureshi Brian K Richards Murray B McBride Philippe Baveye Tammo S Steenhuis

Due to geochemical processes, peat soils often have elevated concentrations of trace elements, which are gradually released following drainage for agriculture. Our objectives were to use incubation temperatures to vary microbial activity in two metalliferous peats (M7 acidic peat and M3 neutral peat) from the Elba, New York region, and to use periodic leaching to assess the extent of trace elem...

2015
David R. Elliott Simon J. M. Caporn Felix Nwaishi R. Henrik Nilsson Robin Sen

The UK hosts 15-19% of global upland ombrotrophic (rain fed) peatlands that are estimated to store 3.2 billion tonnes of carbon and represent a critical upland habitat with regard to biodiversity and ecosystem services provision. Net production is dependent on an imbalance between growth of peat-forming Sphagnum mosses and microbial decomposition by microorganisms that are limited by cold, acid...

2017
Siti Noor Shuhada Sabiha Salim Frisco Nobilly Akbar Zubaid Badrul Azhar

Intensive land expansion of commercial oil palm agricultural lands results in reducing the size of peat swamp forests, particularly in Southeast Asia. The effect of this land conversion on macrofungal biodiversity is, however, understudied. We quantified macrofungal biodiversity by identifying mushroom sporocarps throughout four different habitats; logged peat swamp forest, large-scale oil palm...

2001
Zicheng Yu Ian D. Campbell Dale H. Vitt Michael J. Apps

This article reviews the existing conceptual and simulation models for peatlands and develops a model framework for simulating peatland dynamics in boreal regions. Clymo’s peat bog growth model has been used as the conceptual foundation in published simulation models, but in these models the structural and functional layers of litter, acrotelm and catotelm are not dynamically integrated. Organi...

2004
C. Organo E. M. Lee G. Menezes

Annually, approximately 15% of Ireland’s electricity requirement is provided through the combustion of 3 × 10 tonnes of peat. While literature on the coal-fired power generation is quite abundant, studies on the peat-fired power generation industry from the radiological point of view are scarce. A study of the largest Irish peat-fired power plant was initiated to review the potential occupation...

Journal: :Proceedings. Biological sciences 2003
Pamela J Wilson Jim Provan

Peat bogs represent unique ecosystems that are under particular threat from fragmentation due to peat harvesting, with only 38% of the original peatland in Europe remaining intact and unaffected by peat cutting, drainage and silviculture. In this study, we have used microsatellite markers to determine levels and patterns of genetic diversity in both cut and uncut natural populations of the peat...

2010
E. M. Volkova

Deep karst depressions with a large volume of water due to a poor water drainage system (caused by a clay layer, etc.) and with steeply sloping sidewalls paludificate in a special way. Peat formation begins with dead vegetative material (leaves, etc.) floating on the water's surface in the center of the karst lake. The peat grows laterally from the center of the depression to its edges and the ...

2015
Francesco Giovanni Ceglie Maria Angeles Bustamante Mouna Ben Amara Fabio Tittarelli Andrew C Singer

Peat replacement is an increasing demand in containerized and transplant production, due to the environmental constraints associated to peat use. However, despite the wide information concerning the use of alternative materials as substrates, it is very complex to establish the best materials and mixtures. This work evaluates the use of mixture design and surface response methodology in a peat ...

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