Carbon and nutrient balances in three mountain oases in Northern Oman
| Autor: | Martina Melapie, Eva Schlecht, Andreas Buerkert, Mohamed Nasser Al-Rawahi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
010504 meteorology & atmospheric sciences
gaseous emission chemistry.chemical_element nutrient use efficiency 01 natural sciences lcsh:Aquaculture. Fisheries. Angling Nutrient Dry matter Leaching (agriculture) lcsh:Agriculture (General) 0105 earth and related environmental sciences lcsh:SH1-691 Soil organic matter 04 agricultural and veterinary sciences Nitrogen Manure al jabal al akhdar lcsh:S1-972 Cattle dairy leaching chemistry Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Carbon soil organic matter |
| Zdroj: | Journal of Agricultural and Marine Sciences, Vol 22, Iss 1, Pp 75-86 (2018) |
| ISSN: | 2410-1079 2410-1060 |
| Popis: | Carbon (C) and nitrogen (N) fluxes of two cropping systems in three mountain oases of Al Jabal Al-Akhdar mountains of northern Oman were determined in 2008/09 and 2009/10. These comprised garlic at Ash Sharayjah (1,900 m asl) and Masayrat (1,030 m asl), pomegranate in Ash Sharayjah and Qasha’ (1,640 m asl), and date palm groves at Masayrat. Goat manure was applied to garlic fields at 47 and 40 t dry matter (DM) ha -1 at Ash Sharayjah and 42 and 37 t DM ha -1 at Masayrat. Pomegranates at Ash Sharayjah and Qasha’ received cattle dairy manure at 66 and 60 t DM ha -1 yr -1 . Annual total gaseous C losses varied from 20.9 to 61.2 t C ha -1 to which CH 4 -C contributed < 2%. Total annual C surpluses were 12.5 t ha -1 in garlic fields at Ash Sharayjah, while C deficits of -5.5 t ha -1 were obtained at Masayrat. Annual C surpluses in pomegranate and date palm were 16.7, 7.5, and 1.7 t ha -1 in Ash Sharayjah, Qasha’, and Masayrat. Date palm groves had total annual N surpluses of 1857 kg N ha -1 while pomegranate fields at Ash Sharayjah and Qasha’ had annual surpluses of 1414 and 1500 kg N ha -1 . |
| Databáze: | OpenAIRE |
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