نتایج جستجو برای: carbon and nitrogen mineralization potentials

تعداد نتایج: 16919291  

Journal: :Applied and environmental microbiology 1985
R L Tate

Carbon mineralization was examined in Lakehurst and Atsion sands collected from the New Jersey Pinelands and in Pahokee muck from the Everglades Agricultural Area. Objectives were (i) to estimate the carbon mineralization capacities of acidic, xeric Pinelands soils in the absence of exogenously supplied carbon substrate (nonamended carbon mineralization rate) and to compare these activities wit...

Global warming has been largely driven by increasing atmospheric GHG (Green House Gasses), particularly carbon dioxide caused by fossil fuels burning. The current trend can not be stopped except by reducing fossil fuel consumption or storing organic carbon in soil or earthchr('39')s biological systems such as forests, rangelands and agricultural systems. This study was conducted to determine th...

2013
Peter B. Reich Sarah E. Hobbie

The stimulation of plant growth by elevated CO2 concentration has been widely observed. Such fertilization, and associated carbon storage, could dampen future increases in atmospheric CO2 levels and associated climate warming1. However, the CO2 fertilization of plant biomass may be sensitive to nitrogen supply2–4. Herein we show that in the latest decade of a long-term perennial grassland exper...

Journal: :international journal of environmental research 0
z.h. fan key laboratory of urban environment and health, institute of urban environment, chinese academy of sciences, xiamen 361021, china h.n. zhang key laboratory of urban environment and health, institute of urban environment, chinese academy of sciences, xiamen 361021, china b. liu xinyang normal university, xinyang 464000, china b. liu xinyang normal university, xinyang 464000, china d.d. zhang key laboratory of urban environment and health, institute of urban environment, chinese academy of sciences, xiamen 361021, china- school of environment and spatial informatics, china university of mining and technology, xuzhou 221116, china s. koner department of civil engineering, jalpaiguri government engineering college, jalpaiguri – 735102, india

dissolved organic nitrogen (don) can react with disinfectants to produce numerous disinfectionbyproducts (dbps), particularly nitrogen-containing dbps (n-dbps), and produce serious adverse effectson public health. widely used biological processes in drinking water treatment can increase don in effluents,and enhance these ill effects. this study investigated don in a full-scale two-stage ozonati...

2017
Renhuan Zhu Zicheng Zheng Tingxuan Li Xizhou Zhang Shuqin He Yongdong Wang Tao Liu Wei Li

Climate warming and land use change are some of the drivers affecting soil organic carbon (SOC) dynamics. The Grain for Green Project, local natural resources, and geographical conditions have resulted in farmland conversion into tea plantations in the hilly region of Western Sichuan. However, the effect of such land conversion on SOC mineralization remains unknown. In order to understand the t...

2015
M. Kaleeem Abbasi M. Mahmood Tahir

Application of plant residues as soil amendment may represent a valuable recycling strategy that affects carbon (C) and nitrogen (N) cycling in soil–plant systems. The amount and rate of nutrient release from plant residues depend on their quality characteristics and biochemical composition. A laboratory incubation experiment was conducted for 120 days under controlled conditions (25 C and 58 %...

2009
Emily E. Austin Hector F. Castro Katherine E. Sides Christopher W. Schadt Aimée T. Classen

Increased vegetative growth and soil carbon (C) storage under elevated carbon dioxide concentration ([CO2]) has been demonstrated in a number of experiments. However, the ability of ecosystems, either aboveor belowground, to maintain increased C storage relies on the response of soil processes, such as those that control nitrogen (N) mineralization, to climatic change. These soil processes are ...

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