Results 71 to 80 of about 3,483,745 (281)

Soil Inorganic Electron Acceptors and Carbon Substrates Hierarchically Govern Wetland Methanogenesis Temperature Response

Advanced Science, EarlyView.
ABSTRACT Wetlands constitute Earth's largest natural methane (CH4) source, yet projections of their climate feedback remain uncertain due to poorly constrained temperature sensitivity (Q10‐CH4) of microbial methanogenesis. While water table dynamics have been demonstrated to regulate wetland methanogenesis by altering key soil conditions such as ...
Shuying Qiu, Qingfang Jing, Xuhui Zhou, Xiaoxin Sun, Zhenyu Wei, Baizhi Jiang, Hongyang Chen   +6 more
wiley   +1 more source

Organic agriculture and climate change mitigation - A report of the Round Table on Organic Agriculture and Climate Change [PDF]

, 2011
Summary and next steps Participants of the workshop were able to draw from their discussions and from the input of guest speakers and synthesize a set of conclusions that can be used to guide future activities concerning LCAs and other activities that ...

core   +1 more source

Pan-arctic trends in terrestrial dissolved organic matter from optical measurements [PDF]

, 2016
Climate change is causing extensive warming across arctic regions resulting in permafrost degradation, alterations to regional hydrology, and shifting amounts and composition of dissolved organic matter (DOM) transported by streams and rivers.
Tank, Suzanne, Holmes, Robert, McClelland, James, Butler, Kenna, Hernes, Peter J., Spencer, Robert G. M., Kenna D Butler, Tank, Suzanne E., Spencer, Robert, Johan eSix, Robert M. Holmes, Rachael Y. Dyda, James W. McClelland, Robert M Holmes, Paul J. Mann, Suzanne E. Tank, Rachael Y Dyda, Butler, Kenna D., Hernes, Peter, Robert G. M. Spencer, Suzanne E Tank, McClelland, James W., Robert GM Spencer, Aiken, George R., Mann, Paul, Johan Six, Kenna D. Butler, Peter J Hernes, Dyda, Rachael, Paul James Mann, Holmes, Robert M., Six, Johan, George R. Aiken, George R Aiken, Mann, Paul J., Dyda, Rachael Y, Peter J. Hernes, James W McClelland, Aiken, George   +38 more
core   +1 more source

Iron‐Mediated Release of Aged Dissolved Organic Carbon From Waterlogged Peatland Under Warming

Advanced Science, EarlyView.
This study conducts a five‐year in situ warming experiment in high‐altitude peatlands to examine dissolved organic carbon (DOC) release. The study shows that warming promotes the release of plant‐derived modern DOC in drained peatlands, but amplifies aquatic export of century‐old DOC from waterlogged peatlands via Fe‐mediated DOC mobilization—a ...
Guohua Dai, Zhiying Yang, Zongguang Liu, Wanjia Hu, Lixiao Ma, Enze Kang, Wanqing Luo, Yunpeng Zhao, Chengzhu Liu, Juan Jia, Ting Liu, Chen He, Quan Shi, Jianliang Liu, Yongheng Gao, Huai Chen, Hailong Zhang, Meixun Zhao, Xiaojuan Feng   +18 more
wiley   +1 more source

Stable carbon and radiocarbon isotope compositions of particle size fractions to determine origins of sedimentary organic matter in an estuary [PDF]

, 2002
Stable and radioactive carbon isotopic compositions of particle size fractions of a surface sediment from the Ems-Dollard estuary vary considerably with particle size. The organic material in the fine fractions (
Megens, L.,, de Leeuw, JW, van der Plicht, J, Smedes, F, Smedes, F.,, Megens, L, Plicht, J. van der,, Leeuw, J.W. de,   +7 more
core   +1 more source

Relationships Between Carbon Fractions and Soil Nutrients in Organic Cassava Cultivation in the Sandy Soil of Northeastern Thailand

Agronomy
This research investigated the interaction between the labile and stable fractions of soil organic carbon (SOC) during the cultivation of organic cassava in sandy soil in northeastern Thailand over a period of five years.
Suphathida Aumtong, Chanitra Somyo, Kanokorn Kanchai, Thoranin Chuephudee, Chakrit Chotamonsak   +4 more
doaj   +1 more source

EFFECT OF CARBON ADDITIONS ON SOIL LABILE INORGANIC, ORGANIC AND MICROBIALLY HELD PHOSPHATE

Canadian Journal of Soil Science, 1979
Investigations of the rate of P movement between soil inorganic, organic and biomass P compartments were carried out to clarify aspects of P cycling in soil systems. Organic carbon, as dried grass (33% C, 0.11% P) and cellulose (43% C), was added at a rate equivalent to 4000 kg organic material (OM)∙ha−1 every 30 days for 9 mo to the Ap horizon of a ...
Chauhan, B. S., author, Stewart, J. W. B., author, Paul, E. A., author, Agricultural Institute of Canada, publisher   +3 more
openaire   +4 more sources

Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries

Advanced Science, EarlyView.
TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello, Nagaraj Patil, Fanni Fekecs, Sergio Pinilla, Rebeca Marcilla, Manuel Souto   +5 more
wiley   +1 more source

Reducing Global Warming: The Potential of Organic Agriculture [PDF]

, 2012
Climate change mitigation is urgent, and adaptation to climate change is crucial, particularly in agriculture, where food security is at stake. Agriculture, currently responsible for 20-30% of global greenhouse gas emissions (counting direct and indirect
Dytrtová, Karolína, Smith, Laurence, Niggli, Urs, Olesen, Joergen, Müller, Adrian, Davis, Joan, Lampkin, Nic, Gattinger, Andreas   +7 more
core   +1 more source

Evolution Characteristics of Soil Organic Carbon Components and Carbon Management Index in Caragana microphylla Plantations in Loess Hilly Region

Shuitu baochi yanjiu, 2013
Based on the spatiotemporal substitution method,the evolution characteristics of soil organic carbon components and carbon management index was investigate in Caragana microphylla plantations with age sequence of 10 a,17 a,30 a,34 a,40 a and 50 a in the ...
CUI Jing1, CHEN Yun-ming2, CAO Yang2, WANG Qiong-fang1, HUANG Jia-jian4, WANG Lin-lin5   +5 more
doaj