Results 111 to 120 of about 23,575 (220)

Support for Integrated Ecosystem Assessments of NOAA’s National Estuarine Research Reserves System (NERRS), Volume I: The Impacts of Coastal Development on the Ecology and Human Well-being of Tidal Creek Ecosystems of the US Southeast [PDF]

open access: yes, 2008
A study was conducted, in association with the Sapelo Island and North Carolina National Estuarine Research Reserves (NERRs), to evaluate the impacts of coastal development on sentinel habitats (e.g., tidal creek ecosystems), including potential impacts ...
Bergquist, D.   +13 more
core  

Phytoassessment of Vetiver grass enhanced with EDTA soil amendment grown in single and mixed heavy metal–contaminated soil [PDF]

open access: yes, 2019
Over the years, ethylene-diamine-tetra-acetate (EDTA) has been widely used for many purposes. However, there are inadequate phytoassessment studies conducted using EDTA in Vetiver grass. Hence, this study evaluates the phytoassessment (growth performance,
Ng, Chuck Chuan
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Seasonal variation in nitrogen isotopic composition of bog plant litter during 3years of field decomposition [PDF]

open access: yes, 2018
In this study, we describe the seasonal variation in 15N abundance in the litter of two Sphagnum species and four vascular plant species during 3years of field decomposition in an Italian Alpine bog.
Bragazza, Luca   +3 more
core  

Effect of a radioactive waste of oil-producing complex on microbial community of gray forest soil

open access: yesRUDN Journal of Ecology and Life Safety, 2011
In the laboratory-scale experiment effects of the wastes containing oil components and elements of natural radioactive families U238, Th232 and K40, on a microbial biomass, soil respiration, metabolic quotient, dehydrogenase activity and number of ...
S Yu Selivanovskaya   +3 more
doaj  

Seasonal variations in soil characteristics control microbial respiration and carbon use under tree plantations in the middle gangetic region

open access: yesHeliyon
Seasonal variations directly impact the biochemical and microbial properties of the soil, influence carbon and nutrient cycling within the soil system. Soils under tree plantation (TP) are rich in organic matter and microbial population, making them more
Sudip Sarkar   +11 more
doaj   +1 more source

Microbial soil quality indicators under different crop rotations and tillage management. [PDF]

open access: yes, 2015
An experiment was carried out under field conditions to assess the effects of soil management (no-tillage- NT and conventional tillage- CT) and crop rotation systems on microbial biomass-C (Cmic), basal soil respiration (BSR), metabolic quotient (qCO2 ...
COSTA, J. R.   +4 more
core  

Factors affecting ammonium uptake in streams - an inter-biome perspective [PDF]

open access: yes, 2003
The Lotic Intersite Nitrogen experiment (LINX) was a coordinated study of the relationships between North American biomes and factors governing ammonium uptake in streams. Our objective was to relate inter-biome variability of ammonium uptake to physical,
Bowden, William B.   +18 more
core   +1 more source

DOC-trail: 20 years of organic and conventional farming affect soil microbial properties [PDF]

open access: yes, 2000
In a long-term field trial (DOC; = bio-Dynamic, bio-Organic, Conventional) at Therwil, Switzerland, agricultural production systems have been compared since 1978.
Fliessbach, Andreas   +2 more
core  

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