dc.contributor.author | Yan, Yafei | |
dc.contributor.author | Fang, Shengzuo | |
dc.contributor.author | Tian, Ye | |
dc.contributor.author | Deng, Shiping | |
dc.contributor.author | Tang, Luozhong | |
dc.contributor.author | Chuong, Dao Ngoc | |
dc.date.accessioned | 2019-08-28T16:00:56Z | |
dc.date.available | 2019-08-28T16:00:56Z | |
dc.date.issued | 2015-03-04 | |
dc.identifier | oksd_yan_influenceoftree_2015 | |
dc.identifier.citation | Yan, Y., Fang, S., Tian, Y., Deng, S., Tang, L., & Chuong, D. N. (2015). Influence of tree spacing on soil nitrogen mineralization and availability in hybrid poplar plantations. Forests, 6(3), 636-649. https://doi.org/10.3390/f6030636 | |
dc.identifier.uri | https://hdl.handle.net/11244/321391 | |
dc.description.abstract | Nitrogen (N) availability and mineralization are key parameters and transformation processes that impact plant growth and forest productivity. We hypothesized that suitable plantation spacing can lead to enhanced soil N mineralization and nitrification, which in turn promote tree growth. Studies were conducted to evaluate seasonal patterns of soil inorganic N pools as well as rates of nitrification and N mineralization of three soil layers under four tree spacing treatments. Results showed tree spacing significantly affected annual net N mineralization, whereas inorganic N content in surface soils was significantly affected by tree spacing only during the growing season. The total annual cumulative net N mineralization ranged from 80.3–136.0 mg·kg−1 in the surface soils (0–20 cm), whereas the cumulative net N mineralization of 6 × 6 m and 4.5 × 8 m spacings was 65% and 24% higher than that of the 5 × 5 m, respectively. In general, tree spacing would affect N availability in soil by altering N mineralization rates, while high annual N mineralization was found in soils of low density plantations, with higher rates in square spacing than rectangular spacing. The obtained results suggest that suitable spacing could lead to enhanced N mineralization, but seasonal variation of soil N mineralization may not only be directly related to plantation productivity but also to understory vegetation productivity. | |
dc.format | application/pdf | |
dc.language | en_US | |
dc.publisher | MDPI | |
dc.rights | This material has been previously published. In the Oklahoma State University Library's institutional repository this version is made available through the open access principles and the terms of agreement/consent between the author(s) and the publisher. The permission policy on the use, reproduction or distribution of the material falls under fair use for educational, scholarship, and research purposes. Contact Digital Resources and Discovery Services at lib-dls@okstate.edu or 405-744-9161 for further information. | |
dc.title | Influence of tree spacing on soil nitrogen mineralization and availability in hybrid poplar plantations | |
osu.filename | oksd_yan_influenceoftree_2015.pdf | |
dc.description.peerreview | Peer reviewed | |
dc.identifier.doi | 10.3390/f6030636 | |
dc.description.department | Plant and Soil Sciences | |
dc.type.genre | Article | |
dc.type.material | Text | |
dc.subject.keywords | poplar | |
dc.subject.keywords | planting density | |
dc.subject.keywords | soil layer | |
dc.subject.keywords | soil inorganic n | |
dc.subject.keywords | n nitrification | |
dc.subject.keywords | seasonal variation | |