dc.contributor.author | Nessa, A | |
dc.contributor.author | Bai, SH | |
dc.contributor.author | Wang, D | |
dc.contributor.author | Karim, Z | |
dc.contributor.author | Omidvar, N | |
dc.contributor.author | Zhan, J | |
dc.contributor.author | Xu, Z | |
dc.date.accessioned | 2021-11-03T01:19:58Z | |
dc.date.available | 2021-11-03T01:19:58Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 1439-0108 | |
dc.identifier.doi | 10.1007/s11368-021-03077-9 | |
dc.identifier.uri | http://hdl.handle.net/10072/409693 | |
dc.description.abstract | Purpose: Nitrogen (N) cycle is one of the key biogeochemical cycles in terrestrial ecosystems. Global climate change and soil management practices have disrupted the soil N cycling processes due to increased water and N limitations. Biochar is a soil amendment and improves soil–plant water and N retentions. However, it is uncertain to what extent biochar pyrolysis temperature would affect soil N transformations under two soil moisture regimes. This study aimed to explore how pyrolysis temperature would affect biochar properties and subsequently soil N transformations through a short-term laboratory incubation study at two moisture levels. Materials and methods: An incubation study was carried out for 5 days. Biochar added to the soil at a rate of 5% (w/w) was produced under six different pyrolysis temperatures (e.g., 500, 600, 650, 700, 750, and 850 °C). We used 15N natural abundance (δ15N) of inorganic N (NH4+-N and NO3−-N) to assess the potential of biochar materials in facilitating forest soil N transformations at two different soil moisture levels of 50% and 65% water holding capacity (WHC). Results and discussion: Pyrolysis temperature significantly increased cumulative nitrification and N mineralization initially, peaked between 600 and 700 °C and decreased thereafter. However, both cumulative nitrification and N mineralization were significantly lower in the biochar-amended soils than those of the control soil, with significantly lower δ15N of NH4+-N and δ15N of NO3−-N. The 65% WHC had higher cumulative nitrification and N mineralization compared with those in 50% WHC. This study highlights that application of biochar would reduce N losses and improve soil N retention particularly for forest soil. Conclusions: The present study highlights the importance of biochar pyrolysis temperatures for their use as soil conditioner to increase soil N retention. An optimum pyrolysis temperature range of 600–700 °C was identified for improving soil nitrification and N mineralization under the laboratory incubation conditions. | |
dc.description.peerreviewed | Yes | |
dc.language | en | |
dc.publisher | Springer Science and Business Media LLC | |
dc.relation.ispartofjournal | Journal of Soils and Sediments | |
dc.subject.fieldofresearch | Earth sciences | |
dc.subject.fieldofresearch | Soil sciences | |
dc.subject.fieldofresearch | Agricultural, veterinary and food sciences | |
dc.subject.fieldofresearch | Environmental sciences | |
dc.subject.fieldofresearchcode | 37 | |
dc.subject.fieldofresearchcode | 4106 | |
dc.subject.fieldofresearchcode | 30 | |
dc.subject.fieldofresearchcode | 41 | |
dc.title | Soil nitrification and nitrogen mineralization responded non-linearly to the addition of wood biochar produced under different pyrolysis temperatures | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dcterms.bibliographicCitation | Nessa, A; Bai, SH; Wang, D; Karim, Z; Omidvar, N; Zhan, J; Xu, Z, Soil nitrification and nitrogen mineralization responded non-linearly to the addition of wood biochar produced under different pyrolysis temperatures, Journal of Soils and Sediments, 2021 | |
dc.date.updated | 2021-11-03T00:56:37Z | |
gro.description.notepublic | This publication has been entered in Griffith Research Online as an advanced online version. | |
gro.hasfulltext | No Full Text | |
gro.griffith.author | Xu, Zhihong | |
gro.griffith.author | Hosseini-Bai, Shahla | |
gro.griffith.author | Omidvar, Negar | |