Image Database Export Citations


Comparison of the Different Land Use on the Emission of Greenhouse Gases

Show full item record

Type: Journal Article
Author: Mahdipuor; Landi
Journal: Journal of Science and Technology of Agriculture and Natural Resources
Volume: 14
Page(s): 139-148
Date: 2010
URI: https://hdl.handle.net/10535/6679
Sector: Global Commons
Subject(s): global warming
climate change
land tenure and use
Abstract: "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 determinate the emission of greenhouse gases from different land under agricultural uses. Four types of agricultural land farm, including wheat field, canola field, citrus garden and fallow land were selected to investigate the fate of CO2 in these fields. Gas chromatography technique and close chamber method were used to analyze soil gas samples. Total carbon losses from soil in form of greenhouse gases was 4.47, 3.72, 3.38 and 1.89 Mg C ha-1 yr-1 for wheat field, canola field, citrus garden and fallow land, respectively. Total additional carbon to soil from biomass for wheat field and canola field was 4.1 and 4.6 Mg C ha-1 yr-1, respectively. ECB (ecosystem carbon budget) = ∑ C input - ∑ C output. For wheat field and canola field ECB was -0.37 and +0.88, respectively. This indicated that in wheat field carbon was lost and in canola field carbon was sequestrated. Under citrus garden due to changes in soil organic carbon form previous year has showed that carbon was sequestrated."

Files in this item

Files Size Format View
comparison.pdf 271.4Kb PDF View/Open

This item appears in the following document type(s)

Show full item record