| Comparing watershed black locust afforestation and natural revegetation impacts on soil nitrogen on the Loess Plateau of China | |
| Jin, Zhao1; Li, Xiangru1,2; Wang, Yunqiang1; Wang, Yi1; Wang, Kaibo1; Cui, Buli1,3 | |
| 2016-04-26 | |
| 发表期刊 | SCIENTIFIC REPORTS
 |
| 卷号 | 6期号:2016 |
| 文章类型 | Article |
| 摘要 | This study examined a pair of neighbouring small watersheds with contrasting vegetations: artificial forestland and natural grassland. Since 1954, afforestation which mainly planted with black locust has been conducted in one of these watersheds and natural revegetation in the other. The differences in soil total N, nitrate, ammonium, foliar litterfall delta N-15 and dual stable isotopes of delta N-15 and delta O-18 in soil nitrate were investigated in the two ecosystems. Results showed that there was no significant difference in soil total N storage between the two ecosystems, but the black locust forestland presented higher soil nitrate than the grassland. Moreover, the foliar litterfall N content and delta N-15 of the forestland were significant higher than the grassland. These results indicate that 60 years of watershed black locust afforestation have increased soil N availability. The higher nitrate in the forestland was attributed to the biological N fixation of black locust and difference in ecosystem hydrology. The dual stable isotopes of delta N-15 and delta O-18 revealed that the two ecosystems had different sources of soil nitrate. The soil nitrate in the forestland was likely derived from soil N nitrification, while the soil nitrate in the grassland was probably derived from the legacy of NO3- fertiliser. |
| WOS标题词 | Science & Technology |
| DOI | 10.1038/srep25048 |
| 关键词[WOS] | ROBINIA-PSEUDOACACIA L ; CARBON SEQUESTRATION ; LAND-USE ; AGRICULTURAL ABANDONMENT ; FOREST ; AVAILABILITY ; PRODUCTIVITY ; RESTORATION ; PLANTATION ; CATCHMENT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000374830100001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5780 |
| 专题 | 生态环境研究室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Xian AMS Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Peoples R China 3.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Zhao,Li, Xiangru,Wang, Yunqiang,et al. Comparing watershed black locust afforestation and natural revegetation impacts on soil nitrogen on the Loess Plateau of China[J]. SCIENTIFIC REPORTS,2016,6(2016). |
| APA | Jin, Zhao,Li, Xiangru,Wang, Yunqiang,Wang, Yi,Wang, Kaibo,&Cui, Buli.(2016).Comparing watershed black locust afforestation and natural revegetation impacts on soil nitrogen on the Loess Plateau of China.SCIENTIFIC REPORTS,6(2016). |
| MLA | Jin, Zhao,et al."Comparing watershed black locust afforestation and natural revegetation impacts on soil nitrogen on the Loess Plateau of China".SCIENTIFIC REPORTS 6.2016(2016). |
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| Comparing watershed （1082KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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