Carbon and nitrogen emissions from stored manure and cropped fields in irrigated mountain oases of Oman
Little is known about gaseous carbon (C) and nitrogen (N) emissions from traditional terrace agriculture in irrigated high mountain agroecosystems of the subtropics. In an effort towards filling this knowledge gap measurements of carbon dioxide (CO_2), methane (CH_4), ammonia (NH_3) and dinitrous ox...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Kassel University Press
2010-04-01
|
Series: | Journal of Agriculture and Rural Development in the Tropics and Subtropics |
Subjects: | |
Online Access: | http://www.jarts.info/index.php/jarts/article/view/2010082734354/122 |
id |
doaj-6397a8b59d9f432b87e3aaec58b7e5d0 |
---|---|
record_format |
Article |
spelling |
doaj-6397a8b59d9f432b87e3aaec58b7e5d02020-11-25T00:17:34ZengKassel University PressJournal of Agriculture and Rural Development in the Tropics and Subtropics1612-98302010-04-0111115563Carbon and nitrogen emissions from stored manure and cropped fields in irrigated mountain oases of OmanJens GebauerMohammed N. Al RawahiSabine D. GolombekHenning JahnAndreas BuerkertLittle is known about gaseous carbon (C) and nitrogen (N) emissions from traditional terrace agriculture in irrigated high mountain agroecosystems of the subtropics. In an effort towards filling this knowledge gap measurements of carbon dioxide (CO_2), methane (CH_4), ammonia (NH_3) and dinitrous oxide (N_2O) were taken with a mobile photoacoustic infrared multi-gas monitor on manure-filled PE-fibre storage bags and on flood-irrigated untilled and tilled fields in three mountain oases of the northen Omani Al Jabal al Akhdar mountains. During typical 9-11 day irrigation cycles of March, August and September 2006 soil volumetric moisture contents of fields dominated by fodder wheat, barley, oats and pomegranate ranged from 46-23%. While manure incorporation after application effectively reduced gaseous N losses, prolonged storage of manure in heaps or in PE-fibre bags caused large losses of C and N. Given the large irrigation-related turnover of organic C, sustainable agricultural productivity of oasis agriculture in Oman seems to require the integration of livestock which allows for several applications of manure per year at individual rates of 20 t dry matter ha^−1.http://www.jarts.info/index.php/jarts/article/view/2010082734354/122CO2CH4NH3N2Ocarbon dioxidemethaneammoniadinitrous oxideirrigation agriculture |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jens Gebauer Mohammed N. Al Rawahi Sabine D. Golombek Henning Jahn Andreas Buerkert |
spellingShingle |
Jens Gebauer Mohammed N. Al Rawahi Sabine D. Golombek Henning Jahn Andreas Buerkert Carbon and nitrogen emissions from stored manure and cropped fields in irrigated mountain oases of Oman Journal of Agriculture and Rural Development in the Tropics and Subtropics CO2 CH4 NH3 N2O carbon dioxide methane ammonia dinitrous oxide irrigation agriculture |
author_facet |
Jens Gebauer Mohammed N. Al Rawahi Sabine D. Golombek Henning Jahn Andreas Buerkert |
author_sort |
Jens Gebauer |
title |
Carbon and nitrogen emissions from stored manure and cropped fields in irrigated mountain oases of Oman |
title_short |
Carbon and nitrogen emissions from stored manure and cropped fields in irrigated mountain oases of Oman |
title_full |
Carbon and nitrogen emissions from stored manure and cropped fields in irrigated mountain oases of Oman |
title_fullStr |
Carbon and nitrogen emissions from stored manure and cropped fields in irrigated mountain oases of Oman |
title_full_unstemmed |
Carbon and nitrogen emissions from stored manure and cropped fields in irrigated mountain oases of Oman |
title_sort |
carbon and nitrogen emissions from stored manure and cropped fields in irrigated mountain oases of oman |
publisher |
Kassel University Press |
series |
Journal of Agriculture and Rural Development in the Tropics and Subtropics |
issn |
1612-9830 |
publishDate |
2010-04-01 |
description |
Little is known about gaseous carbon (C) and nitrogen (N) emissions from traditional terrace agriculture in irrigated high mountain agroecosystems of the subtropics. In an effort towards filling this knowledge gap measurements of carbon dioxide (CO_2), methane (CH_4), ammonia (NH_3) and dinitrous oxide (N_2O) were taken with a mobile photoacoustic infrared multi-gas monitor on manure-filled PE-fibre storage bags and on flood-irrigated untilled and tilled fields in three mountain oases of the northen Omani Al Jabal al Akhdar mountains. During typical 9-11 day irrigation cycles of March, August and September 2006 soil volumetric moisture contents of fields dominated by fodder wheat, barley, oats and pomegranate ranged from 46-23%. While manure incorporation after application effectively reduced gaseous N losses, prolonged storage of manure in heaps or in PE-fibre bags caused large losses of C and N. Given the large irrigation-related turnover of organic C, sustainable agricultural productivity of oasis agriculture in Oman seems to require the integration of livestock which allows for several applications of manure per year at individual rates of 20 t dry matter ha^−1. |
topic |
CO2 CH4 NH3 N2O carbon dioxide methane ammonia dinitrous oxide irrigation agriculture |
url |
http://www.jarts.info/index.php/jarts/article/view/2010082734354/122 |
work_keys_str_mv |
AT jensgebauer carbonandnitrogenemissionsfromstoredmanureandcroppedfieldsinirrigatedmountainoasesofoman AT mohammednalrawahi carbonandnitrogenemissionsfromstoredmanureandcroppedfieldsinirrigatedmountainoasesofoman AT sabinedgolombek carbonandnitrogenemissionsfromstoredmanureandcroppedfieldsinirrigatedmountainoasesofoman AT henningjahn carbonandnitrogenemissionsfromstoredmanureandcroppedfieldsinirrigatedmountainoasesofoman AT andreasbuerkert carbonandnitrogenemissionsfromstoredmanureandcroppedfieldsinirrigatedmountainoasesofoman |
_version_ |
1725379230802378752 |