نتایج جستجو برای: co2 ha

تعداد نتایج: 129490  

2005
H. Pathak C. Li R. Wassmann

The Denitrification and Decomposition (DNDC) model was evaluated for its ability to simulate methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2) emissions from Indian rice fields with various management practices. The model was calibrated and validated for field experiments in New Delhi, India. The observed yield, N uptake and greenhouse gas (GHG) emissions were in good agreement with t...

2014
Dai H Nguyen Johannes Biala Peter R Grace Clemens Scheer David W Rowlings

As the cost of mineral fertilisers increases globally, organic soil amendments (OAs) from agricultural sources are increasingly being used as substitutes for nitrogen. However, the impact of OAs on the production of greenhouse gases (CO2 and N2O) is not well understood. A 60-day laboratory incubation experiment was conducted to investigate the impacts of applying OAs (equivalent to 296 kg N ha(...

Journal: :Ambio 2009
James M Waddington Janina Plach Jason P Cagampan Maria Lucchese Maria Strack

The Canadian horticultural peat industry generates carbon emissions through various methods of peat extraction, processing, and land-use changes. This study provides a carbon emissions analysis comparing the traditional vacuum harvest (VH) and block-cut (BC) extraction techniques to a new acrotelm transplant (AT) method that restores natural peatland function by preserving and replacing the sur...

2016
Ana L. Gonçalves Maria C. M. Alvim-Ferraz Fernando G. Martins Manuel Simões José C. M. Pires Paul L. Chen

The rapid development of modern society has resulted in an increased demand for energy, mainly from fossil fuels. The use of this source of energy has led to the accumulation of carbon dioxide (CO2) in the atmosphere. In this context, microalgae culturing may be an effective solution to reduce the CO2 concentration in the atmosphere, since these microorganisms can capture CO2 and, simultaneousl...

2012
Jeremy Rohmer Daniel Raucoules

7 Persistent scatterers synthetic aperture radar interferometry (PSI) analysis is viewed as a 8 promising monitoring technique for multiyear detection of ground surface displacements 9 during long term CO2 injection into deep aquifers (of the order of 25 to 50 years). 10 This technique was successfully utilized at the CO2 storage site of In-Salah (Algeria). 11 Nevertheless, this success may not...

ژورنال: علوم آب و خاک 2010
لندی, احمد, مهدی‌پور, لاله ,

An increase in the emission of greenhouse gases such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) from the soil surface to the atmosphere has been of worldwide concern over the last several decades. Carbon dioxide is recognized as a significant contributor to global warming and climatic change, accounting for 60% of total greenhouse effect. The aim of this research was to dete...

2005
Nick A. Ritucci Joseph S. Erlichman J. C. Leiter Robert W. Putnam

We compared the response to hypercapnia (10%) in both neurons and astrocytes between a distinct area of the retrotrapezoid nucleus (RTN), the medio-caudal RTN (mcRTN) and more intermediate and rostral RTN areas (irRTN) in medullary brain slices from neonatal rats. Exposure to hypercapnic acidosis (HA) caused pHo to decline from 7.45 to 7.15 and caused a maintained, intracellular acidification o...

Journal: :Fave: Sección Ciencias Agrarias 2021

Los bosques nativos intervienen en el ciclo global del carbono (C), dado su rol de secuestradores CO2. El objetivo esta investigación fue estimar stock y la tasa anual captura C Espinal entrerriano. Se evaluaron seis semixerofíticos, estimándose biomasa arbórea aérea, mediante modelos alométricos locales tasas crecimiento por especie. contenido osciló entre 52,13 111,82 t MS/ha; promedio 92,68 ...

2012
Andreas Schindlbacher Steve Wunderlich Werner Borken Barbara Kitzler Sophie Zechmeister-Boltenstern Robert Jandl

Climate change may considerably impact the carbon (C) dynamics and C stocks of forest soils. To assess the combined effects of warming and reduced precipitation on soil CO2 efflux, we conducted a two-way factorial manipulation experiment (4 °C soil warming + throughfall exclusion) in a temperate spruce forest from 2008 until 2010. Soil was warmed by heating cables throughout the growing seasons...

2018
Camila Viana Vieira Farhate Zigomar Menezes de Souza Stanley Robson de Medeiros Oliveira Rose Luiza Moraes Tavares João Luís Nunes Carvalho

Soil CO2 emissions are regarded as one of the largest flows of the global carbon cycle and small changes in their magnitude can have a large effect on the CO2 concentration in the atmosphere. Thus, a better understanding of this attribute would enable the identification of promoters and the development of strategies to mitigate the risks of climate change. Therefore, our study aimed at using da...

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