accumulationofresidualsoilmicrobialcarboninchinesefirplantationsoilsafternitrogenandphosphorusadditions
文献类型：期刊论文
| 作者 | Ma Zhiqiang2; Zhang Xinyu2; Zhang Chuang3; Wang Huimin2; Chen Fusheng4; Fu Xiaoli2; Fang Xiangmin4; Sun Xiaomin2; Lei Qiuliang1 |
| 刊名 | journalofforestryresearch
 |
| 出版日期 | 2018 |
| 卷号 | 029期号:004页码:953 |
| ISSN号 | 1007-662X |
| 英文摘要 | Nitrogen （N） and phosphorus （P） additions can affect soil microbial carbon （C） accumulation. However, the mechanisms that drive the changes in residual microbial C that occur after N and P additions have not been well-defined for Chinese fir plantations in subtropical China. We set up six different treatments, viz. a control （CK）, two N treatments （NI： 50kgha-1 a-1; N2： 100 kg ha-1 a-1）, one P treatment （P： 50 kg ha-1 a-1）, and two combined N and P treatments （NIP： 50kgha-1a-1 of N ＋50kgha-1a-1 of P; N2P：100 kg ha-1 a-1 of N ＋ 50 kg ha-1 a-1 of P）. We then investigated the influences of N and P additions on residual microbial C. The results showed that soil pH and microbial biomass decreased after N additions, while microbial biomass increased after P additions. Soil organic carbon （SOC） and residual microbial C contents increased in the N and P treatments but not in the control. Residual microbial C accumulation varied according to treatment and declined in the order： N2P 〉 N1P 〉 N2 〉 N1 〉 P 〉 CK. Residual microbial C contents were positively correlated with available N, P, and SOC contents, but were negatively correlated with soil pH. The ratio of residual fungal C to residual bacterial C increased under P additions, but declined under combined N1P additions. The ratio of residual microbial C to SOC increased from 11 to 14% under the N1P and N2P treatments, respectively. Our results suggest that the concentrations of residual microbial C and the stability of SOC would increase under combined applications of N and P fertilizers in subtropical Chinese fir plantation soils. |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/113351]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 1.Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences 2.中国科学院地理科学与资源研究所 3.沈阳农业大学 4.江西农业大学 |
| 推荐引用方式 GB/T 7714 | Ma Zhiqiang,Zhang Xinyu,Zhang Chuang,et al. accumulationofresidualsoilmicrobialcarboninchinesefirplantationsoilsafternitrogenandphosphorusadditions[J]. journalofforestryresearch,2018,029(004):953. |
| APA | Ma Zhiqiang.,Zhang Xinyu.,Zhang Chuang.,Wang Huimin.,Chen Fusheng.,...&Lei Qiuliang.(2018).accumulationofresidualsoilmicrobialcarboninchinesefirplantationsoilsafternitrogenandphosphorusadditions.journalofforestryresearch,029(004),953. |
| MLA | Ma Zhiqiang,et al."accumulationofresidualsoilmicrobialcarboninchinesefirplantationsoilsafternitrogenandphosphorusadditions".journalofforestryresearch 029.004(2018):953. |
入库方式： OAI收割
来源：地理科学与资源研究所
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