scholarly journals Effects of nutrient fertilization on root decomposition and carbon accumulation in intensively managed grassland soils

Ecosphere ◽  
2020 ◽  
Vol 11 (4) ◽  
Author(s):  
Dario A. Fornara ◽  
David Flynn ◽  
Tancredi Caruso
Keyword(s):  
Carbon Accumulation ◽  
Root Decomposition ◽  
Grassland Soils ◽  
Nutrient Fertilization ◽  
Intensively Managed

Phosphorus Loss in Drainflow from Intensively Managed Grassland Soils

1999 ◽  
Vol 28 (4) ◽  
pp. 1235-1242 ◽  
Author(s):  
P. S. Hooda ◽  
M. Moynagh ◽  
I. F. Svoboda ◽  
A. C. Edwards ◽  
H. A. Anderson ◽  
...  
Keyword(s):  
Grassland Soils ◽  
Phosphorus Loss ◽  
Intensively Managed

Soil Organic Carbon Accumulation in Intensively Managed Phyllostachys praecox Stands

2011 ◽  
Vol 77 (3) ◽  
pp. 296-303 ◽  
Author(s):  
Guomo Zhou ◽  
Shunyao Zhuang ◽  
Pekun Jiang ◽  
Qiufang Xu ◽  
Hua Qin ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Accumulation ◽  
Intensively Managed ◽  
Phyllostachys Praecox

Long-term effects of grazing, liming and nutrient fertilization on the nitrifying community of grassland soils

2018 ◽  
Vol 118 ◽  
pp. 97-102 ◽  
Author(s):  
Gary Egan ◽  
Xue Zhou ◽  
Dongmei Wang ◽  
Zhongjun Jia ◽  
Mick Crawley ◽  
...  
Keyword(s):  
Long Term Effects ◽  
Grassland Soils ◽  
Nutrient Fertilization

Quantifying the coarse-root biomass of intensively managed loblolly pine plantations

2006 ◽  
Vol 36 (1) ◽  
pp. 12-22 ◽  
Author(s):  
Ashley T Miller ◽  
H Lee Allen ◽  
Chris A Maier
Keyword(s):  
Loblolly Pine ◽  
Aboveground Biomass ◽  
Root Biomass ◽  
Belowground Biomass ◽  
Carbon Accumulation ◽  
Total Biomass ◽  
Coarse Roots ◽  
Coarse Root ◽  
Vegetation Control ◽  
Intensively Managed

Most of the carbon accumulation during a forest rotation is in plant biomass and the forest floor. Most of the belowground biomass in older loblolly pine (Pinus taeda L.) forests is in coarse roots, and coarse roots persist longer after harvest than aboveground biomass and fine roots. The main objective was to assess the carbon accumulation in coarse roots of a loblolly pine plantation that was subjected to different levels of management intensity. Total belowground biomass ranged from 56.4 to 62.4 Mt·ha–1 and was not affected by treatment. Vegetation control and disking increased pine taproot biomass and decreased hardwood taproot biomass. Pines between tree coarse roots were unaffected by treatment, but hardwoods between tree coarse roots were significantly reduced by vegetation control. Necromass was substantially lower than between-tree biomass, indicating that decomposition of coarse-root biomass from the previous stand was rapid for between-tree coarse roots. Total aboveground biomass was increased by vegetation control, with the lowest production on the least intensively managed plots (180.2 Mt·ha–1) and the highest production on the most intensively managed plots (247.3 Mt·ha–1). Coarse-root biomass ranged from 19% to 24% of total biomass. Silvicultural practices increasing aboveground pine productivity did not increase total coarse-root biomass carbon because of the difference in root/shoot allocation between pine and hardwood species.

Changes in sediment and organic carbon accumulation in a highly-disturbed ecosystem: The Sacramento-San Joaquin River Delta (California, USA)

2009 ◽  
Vol 59 (4-7) ◽  
pp. 154-163 ◽  
Author(s):  
Elizabeth A. Canuel ◽  
Elizabeth J. Lerberg ◽  
Rebecca M. Dickhut ◽  
Steven A. Kuehl ◽  
Thomas S. Bianchi ◽  
...  
Keyword(s):  
Organic Carbon ◽  
River Delta ◽  
Carbon Accumulation ◽  
San Joaquin River

scholarly journals In-Situ Synchrotron X-ray Diffraction Investigation of Microstructural Evolutions During Low-Pressure Carburizing

2021 ◽  
Author(s):  
Ogün Baris Tapar ◽  
Jérémy Epp ◽  
Matthias Steinbacher ◽  
Jens Gibmeier
Keyword(s):  
Carbon Content ◽  
Carbon Diffusion ◽  
Low Pressure ◽  
Carbon Accumulation ◽  
Experimental Chamber ◽  
Carbide Formation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carbon Supply

AbstractAn experimental heat treatment chamber and control system were developed to perform in-situ X-ray diffraction experiments during low-pressure carburizing (LPC) processes. Results from the experimental chamber and industrial furnace were compared, and it was proven that the built system is reliable for LPC experiments. In-situ X-ray diffraction investigations during LPC treatment were conducted at the German Electron Synchrotron Facility in Hamburg Germany. During the boost steps, carbon accumulation and carbide formation was observed at the surface. These accumulation and carbide formation decelerated the further carbon diffusion from atmosphere to the sample. In the early minutes of the diffusion steps, it is observed that cementite content continue to increase although there is no presence of gas. This effect is attributed to the high carbon accumulation at the surface during boost steps which acts as a carbon supply. During quenching, martensite at higher temperature had a lower c/a ratio than later formed ones. This difference is credited to the early transformation of austenite regions having lower carbon content. Also, it was noticed that the final carbon content dissolved in martensite reduced compared to carbon in austenite before quenching. This reduction was attributed to the auto-tempering effect.

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