نتایج جستجو برای: gypsiferous soils

تعداد نتایج: 48731  

2015
Caihuan Wang Zhenhong Gu Hang Cui Honghui Zhu Shenlei Fu Qing Yao Gotthard Kunze

Land use type is key factor in restoring the degraded soils due to its impact on soil chemical properties and microbial community. In this study, the influences of land use type on arbuscular mycorrhizal fungal (AMF) community and soil chemical properties were assessed in a long-run experimental station in subtropical hilly area of southern China. Soil samples were collected from forest land, o...

Journal: :FEMS microbiology ecology 2012
Andrew Bissett Guy C J Abell Levente Bodrossy Alan E Richardson Peter H Thrall

Despite their large areas and potential importance as methane sinks, the role of methane-oxidizing bacteria (MOB) in native woodland soils is poorly understood. These environments are increasingly being altered by anthropogenic disturbances, which potentially alter ecosystem service provision. Dryland salinity is one such disturbance and is becoming increasingly prevalent in Australian soils. W...

2012
Guo-Chun Ding Holger Heuer Kornelia Smalla

Considering their key role for ecosystem processes, it is important to understand the response of microbial communities in unpolluted soils to pollution with polycyclic aromatic hydrocarbons (PAH). Phenanthrene, a model compound for PAH, was spiked to a Cambisol and a Luvisol soil. Total community DNA from phenanthrene-spiked and control soils collected on days 0, 21, and 63 were analyzed based...

Journal: :Journal of agricultural and food chemistry 2004
Tomas Undabeytia Trinidad Sanchez-Verdejo Esmeralda Morillo Celia Maqueda

The influence of two organic amendments consisting of an urban waste compost (SUW) and a commercial amendment from olive mill wastes (OW) was assessed on the sorption properties and leaching of the ionizable herbicide imazaquin on four soils with different physicochemical characteristics. A loamy sand soil (CR), a loam soil (P44), a silt loam soil (AL), and a clay soil (TM), with low-medium org...

2011
P. Blaser

This article deals with the principles of soil formation and shows the problems to recognize and visualize the many effects of man made stress in soils. Soils are transformation products of minerals and organic matter with a defined organization, morphology and structure. They are closely related to site factors and for this, the soil properties vary considerably in time and space. Due to many ...

D. Bao D. Guo Sh. Huang Sh. Zhang Y. Ma,

Repeated application of manures to agricultural soils could cause the accumulation of phosphorus (P) in soils. However, it is unclear if manure P can behave similar to P in soluble fertilizers in accumulation Olsen-P (0.5 mol L-1 NaHCO3 at pH 8.5) in soils. A long-term wheat-maize rotation experiment was conducted to investigate the effects of repeated application of manures on P accumulation i...

2008
Ana Navas Jerónimo López-Martínez José Casas Javier Machín Juan José Durán Enrique Serrano José-Antonio Cuchi Sandra Mink

Soils in ice-free areas of Livingston Island have been forming since the last deglaciation in a maritime warmer climate that is more humid than in interior Antarctica. A soil survey was carried out on Byers and Hurd peninsulas to characterize the soils and investigate the processes. Soils were sampled on two different substrates, mudstones and volcanic rocks in Byers Peninsula

Journal: :Journal of environmental quality 2004
Jeremy C Hansen Barbara J Cade-Menun Daniel G Strawn

Two common manure storage practices are stockpiles and lagoons. The manure from stockpiles is applied to soils in solid form, while lagoon manure is applied as a liquid. Soil amendment with manure in any form introduces a significant amount of phosphorus (P) that exists in both organic and inorganic forms. However, little is known about P speciation in manure stored under different conditions, ...

2011

Site geology: The geology of the Oak Park site is one of limestone-drift materials overlying regional limestone-bedrock (over which two broad groups of soils occur: light-textured gravelly soils derived from limestone, and more heavy-textured soils derived from till). The soil underlying Miscanthus-plantations used in the experiments the former type, with a perched clay/subsoil layer under the ...

Journal: :Environmental science. Processes & impacts 2015
Gabriella K Macoustra Catherine K King Jane Wasley Sharon A Robinson Dianne F Jolley

Special Antarctic Blend (SAB) is a diesel fuel dominated by aliphatic hydrocarbons that is commonly used in Antarctic and subantarctic regions. The past and present use of SAB fuel at Australia's scientific research stations has resulted in multiple spills, contaminating soils in these pristine areas. Despite this, no soil quality guidelines or remediation targets have been developed for the re...

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